what is the change in temperature between 24 Celsius and 15 Celsius

The unit price of strawberries at the grocery mart is $1.5, the unit price of strawberries at the Baldwin hills is $1.30

In order to get the unit price of an item, you would have to divide the cost of the item by the total quantity bought.

With this definition, at the grocery mart

price = 2.99 dollars

quantity bought = 2

unit price = 2.99 / 2

= 1.5 dollars

At the Baldwin hills

price = 3.99 dollars

quantity bought = 3

unit price = 3.99 / 3

= $1.30

Hence the unit prices at the two markets are $1.5 and $1.30

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At Grocery Mart,strawberries cost $2.99 for 2lb., and at Baldwin Hills Market strawberries are $3.99 for 3 lb.What is the unit price of strawberries at each grocery store? If necessary , round to the nearest penny.

Answer:

the length is 19

the width is 13

Step-by-step explanation:

well since a rectangle has two even sides the width have to be the same and the lengths have to be the same

perimeter is all the sides added together

since the length is the bigger size choose a sensible number (for example 15) and add another 15 to get the length and since it's 6cm smaller take 6 away from 15 which is 9 and add the two 9s together but 15+15+9+9 isn't 64 so you try again with a higher number until you each a total of 64

[tex]\huge\mathcal{\fcolorbox{aqua}{azure}{\red{Answer:-}}}[/tex]

To solve this problem, let's denote the width of the rectangle as $w$ (in cm).

According to the given information, the length of the rectangle is 6 cm more than the width, so the length can be represented as $w + 6$ (in cm).

The perimeter of a rectangle is given by the formula:

$$\text{{Perimeter}} = 2(\text{{length}} + \text{{width}})$$

Substituting the values, we have:

$64 = 2((w + 6) + w)$

Now, let's solve for $(w)$:

$64 = 2(2w + 6)$

$64 = 4w + 12$

$4w = 64 - 12$

$4w = 52$

Dividing both sides of the equation by 4, we get:

$w = \frac{{52}}{{4}}$

$w = 13$

So, the width of the rectangle is 13 cm.

Substituting the value of $w$ back into the expression for the length:

$$\text{{Length}} = w + 6 = 13 + 6 = 19$$

Therefore, the dimensions of the rectangle are 13 cm (width) and 19 cm (length).

There is a 35% increase in the number of seats.

Let us try to carry out each of the calculations as shown;

1) 7/8 + 1/6 ÷  2/9

Applying BODMAS

7/8 + (1/6 * 9/2)

7/8 + 9/12 = 39/24

2) 8/ 0.4^3 = 125

3) 75/100 * 15400 = 11550 people

4) Percentage increase in the number of seats = New capacity - Old capacity/Old capacity * 100/1

= 20790 seats - 15400 seats/15400 seats * 100/1

= 35 % increase

4) If it flashes 5 times every 10 seconds

Then in 1 second it flashes 0.5 times in every second

In a day there are 86400 seconds

Thus the light flashes 86400 seconds  * 0.5 times = 43200 times in a day.

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The result of simplifying each number (-3)¹/₃ . (-3)¹/₃ . (-3)¹/₃  using the exponent rules is -3

To solve this exercise we have to resolve algebraic operations following the exponent rules.

(-3)¹/₃ . (-3)¹/₃ . (-3)¹/₃

Using the product rule that indicates that: the exponent result will be the addition of these exponents, we have:

(-3)¹/₃⁺ ¹/₃ ⁺ ¹/₃

(-3)³/₃

(-3)¹

-3

In mathematics an exponent is the number of time that a number, called (base) is multiplied by itself. It is also called, power or index.

Example: 3² = 3*3 = 9

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The required value of base x is -4, 3.

A quadratic equation is an algebraic equation of the second degree in x. The quadratic equation in its standard form is

ax^2 + bx + c = 0,

where a and b are the coefficients, x is the variable, and c is the constant term.

Now it is given that,

221x = 25base10

Converting them into quadratic equation we get,

2x^2 + 2x + 1x^0 = 2*10^1 + 5*10^0

Solving we get,

2x^2 + 2x + 1*1 = 2*10 + 5*1

Multiplying we get,

2x^2 + 2x + 1 = 20 + 5

Adding we get,

2x^2 + 2x + 1 = 25

Subtracting 25 both the side we get,

2x^2 + 2x + 1 - 25 = 25 - 25

Solving we get,

2x^2 + 2x - 24 = 0

Dividing whole equation by 2 we get,

x^2 + x - 12 = 0

factorizing we get,

x^2 + (4 - 3)x - 12 = 0

Expanding the bracket we get,

x^2 + 4x - 3x - 12 = 0

Taking common we get,

x(x + 4) - 3(x + 4) = 0

Again taking common we get,

(x + 4)(x - 3) = 0

Thus the value of x are,

x = -4

and x = 3

this is the required value of base x.

Thus, the required value of base x is -4, 3.

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Answer:

-11

Step-by-step explanation:

I think it helps you

Answer: 53412

Step-by-step explanation:

17

6.5−1−21

−(−5)2−

The answer to the following listed algebra questions are below:

6 = a/4 + 2

substract 2 from both sides

6 - 2 = a/4

4 = a/4

cross product

4 × 4 = a

a = 16

-6 + x/4 = -5

x/4 = -5 + 6

x/4 = 1

x = 4 × 1

x = 4

9x - 7 = -7

Add 7 to both sides

9x = -7 + 7

9x = 0

x = 0/9

0 = 4 + n/5

0 - 4 = n/5

-4 = n/5

-4 × 5 = n

-20 = n

-4 = r/20 - 5

-4 + 5 = r/20

1 = r/20

1 × 20 = r

r = 20

-1 = (5+x) / 6

-1 × 6 = (5 + x)

-6 = 5 + x

-6 - 5 = x

x = -11

(v+9)/3 = 8

v + 9 = 8 × 3

v +9 = 24

v = 24 - 9

v = 15

2(n + 5) = -2

2n + 10 = -2

2n = -2 - 10

2n = -12

n = -12/2

n = -6

-9x + 1 = -80

-9x = -80 - 1

-9x = -81

x = -81/-9

x = 9

-6 = n/2 - 10

-6 + 10 = n/2

4 = n/2

4 × 2 = n

n = 8

-2 = 2 + v/4

-2 - 2 = v/4

-4 = v/4

-4 × 4 = v

-16 = v

144 = -12(x + 5)

144 = -12x - 60

144 + 60 = -12x

204 = -12x

x = 204 / -12

x = 17

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The expression given as -15 + 0 is a representation of the identity property of integer

Expressions are mathematical statements that are represented by variables, coefficients and operators

The expression is given as

-15 + 0

The identity property of integer states that

x + 0 = x

This means that

-15 + 0 is a representation of the identity property of integer

Hence,  the expression given as -15 + 0 is a representation of the identity property of integer

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Answer:

a. 117. b. 9 c. 0. d. 22

Step-by-step explanation:

this composite function is calculated as: (f o g) (x) = f (g (x))

Answer:

2.97%

Step-by-step explanation:

Answer:

2.72807     (aprox)

Step-by-step explanation:

14% = 14/100 = 0.14

100% = 100/100 = 1

It was a increase

then 14% = 100% + 14% = 1 + 0.14 = 1.14

3.11 / 1.14 = 2.72807    (aprox)

Check:

2,72807 + (2.72807*0.14) = 2.72807 + 0.38193 = 3.11

Answer:

[tex]x=\frac{1}{10}[/tex]

Step-by-step explanation:

[tex]\frac{30x^1}{3}=1[/tex]

Multiply both sides by 3

[tex]\frac{3\cdot \:30x^1}{3}=1\cdot \:3[/tex]

Simplify

[tex]30x=3[/tex]

divide both sides by 30

[tex]\frac{30x}{30}=\frac{3}{30}[/tex]

Simplify

[tex]x=\frac{1}{10}[/tex]

The formula for density is d = M/V,

where d is density, M is mass, and V is volume.

Density is commonly expressed in units of grams per cubic cm. For example, the density of water is 1 gram per cubic cm, and Earth's density is 5.51 grams per cubic cm.

The quantity per unit volume, unit area, or unit length: as. a : the mass of a substance per unit volume. b : the distribution of a quantity (as mass, electricity, or energy) per unit usually of space.

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Answer:

$5.75

Step-by-step explanation:

price of the two hot dogs = 1.50 × 2 = $3

Then

The total payment = 3 + 2.75 = $5.75

The answer is 3 ft-lb.

Beyond its natural length:

Work done to strech the spring to a lentgh x = 0.5 * k * x^2

Now;

12  = 0.5 * k * 9

k = 8/3 = 2.667

9 in = 1.5 ft

Work needed to stretch it 9 in. beyond its natural length = 0.5 * 2.667 * 1.5*1.5 = 3 ft-lb

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Explanation:

CCW = counter-clockwise

The rule for a 90 degree CCW rotation is this

[tex](\text{x}, \text{y})\to(-\text{y}, \text{x})[/tex]

it only works if the center of rotation is the origin.

The x and y coordinates swap places. Then you change the sign of the first coordinate after the swap occurred.

Applying that rotation rule to point C(5, 6) gets us to C ' (-6, 5).

Then to reflect over the x axis, we flip the sign of the y coordinate. The x coordinate stays the same. The notation would be [tex](\text{x}, \text{y})\to(\text{x}, -\text{y})[/tex]

So we go from C ' (-6, 5) to C '' (-6, -5)

The probability that a boy selected at random is a Junior is 0.23 and the probability of randomly choosing a student who is a Junior and a boy is 0.14

The probability of an event is the chance or the likelihood that the event would occur.

Note that the chance or the likelihood is represented as a numerical value

The table that completes the question is added as an attachment

From the table, we have the following values

n(Boys and Junior) = 65

n(Boys) = 285

So, the probability that a boy selected at random is a Junior is

P = n(Boys and Junior)/n(Boys)

This gives

P = 65/285

Evaluate

P = 0.23

From the table, we have the following values

n(Boys and Junior) = 65

Total = 465

So, the probability of randomly choosing a student who is a Junior and a boy is

P = n(Boys and Junior)/Total

This gives

P = 65/465

Evaluate

P = 0.14

Hence, the probability of randomly choosing a student who is a Junior and a boy is 0.14

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Statement 2 is true. The contrapositive of a biconditional statement is always true.

A conditional statement can be defined as a type of statement that can be written to have both a hypothesis and conclusion. This ultimately implies that, it typically has the form "if P then Q."

Where:

P and Q represent sentences.

A biconditional statement can be defined as a statement which combines a conditional statement with its converse. This ultimately implies that, a biconditional statement is generally created when a conditional statement is combined with its converse.

In Mathematics, a biconditional statement typically has the form "P if and only if Q." Therefore, the biconditional statement, "p if q," is true whenever the two statements have the same truth value. Otherwise, the biconditional statement is false.

In this context, we can reasonably infer and logically deduce that since statement 2 is true because the contrapositive of a biconditional statement is always true.

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The slower speed is 20 miles per hour and the higher speed is 40 miles per hour.

time is calculated using the formula

[tex]Time=\frac{Distance}{Speed}[/tex]

In the given question

driver drove 50 miles at slower speed.

Let the slower speed be x miles per hour.

So the time taken to cover 50 miles at slower speed = [tex]\frac{50}{x}[/tex]    ...(i)

driver drove 300 miles at faster speed.

given speed is 20 miles per hour faster i.e. speed = (x+20) miles per hour So the time taken to cover 300 miles at (x+20) mph speed = [tex]\frac{300}{(x+20)}[/tex]....(ii)

According to the question

the time spent driving at the faster speed was thrice that spent driving at the slower​ speed.

From equation (i) and (ii) we get

[tex]3*(\frac{50}{x} )=\frac{300}{x+20}[/tex]

[tex]\frac{150}{x} =\frac{300}{x+20}[/tex]

Cross Multiplying we get

[tex]150(x+20)=300x\\ \\ 150x+3000=300x\\ \\ 300x-150x=3000\\ \\ 150x=3000\\ \\ x=20[/tex]

Slower speed = x = 20mph.

Faster speed = (x+20) = 20+20 = 40mph.

Therefore , The slower speed is 20 miles per hour and the higher speed is 40 miles per hour.

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If you earn a manager point every 30 minutes, then the number of minutes you would need to work for 50 manager points is equal to 1500.

The number of minutes needed to work for 50 manager points can be calculated using multiplication. Multiplication is one of the arithmetic parts and is thought to be the opposite of division. It represents the basic idea of the repeated addition of groups of equal sizes.

As,

one manager point = 30 minutes

50 manager points = x

Here x represents the number of minutes required to earn 50 manager points

Cross multiplying,

30 × 50 = x

x = 1500

Hence the number of minutes required to earn 50 manager points if a manager point is earned every 30 minutes is calculated to be 1500 minutes.

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Step-by-step explanation:

the area of a triangle is

baseline × height / 2

now we also know that

the height in that triangle is twice its baseline.

so,

height = 2×baseline

so, for the given area we have

49 = baseline × 2 × baseline / 2 = baseline²

baseline = 7 ft.

therefore,

height = 2×baseline = 2×7 = 14 ft.

and now we run into a problem. as we don't have any further information about the triangle, the lengths of the sides cannot be determined.

the reason is that the height can be placed anywhere on the baseline (from the left end point all the way over to the right end point). all these triangles created by the moving height have the same area (49 ft²), but different lengths of the legs.

the lengths of the legs are calculated via Pythagoras, because the height splits the main triangle into 2 smaller right-angled triangles.

so, if I assume e.g. an isoceles triangle (both legs are equally long), then I know that the height splits the triangle into 2 equal triangles and the baseline in half.

then I can calculate :

leg² = (baseline/2)² + height² = 3.5² + 14² =

= 12.25 + 196 = 208.25

(each) leg = 14.43086969... ft

if I assume the height is at an endpoint of the baseline then the whole triangle is by itself a right-angled triangle.

and the height is one leg and the other leg is again via Pythagoras

leg² = baseline² + height² = 7² + 14² = 49 + 196 = 245

leg = 15.65247584... ft

all the possible solutions for the leg lengths are between 14 ft (the height) and 15.65247584... ft.

Answer:

[tex]\begin{array}{| c | c | }{ \rule{3cm}0cm}&{ \rule{3cm}0cm} \\ \bf Height, h cm& \bf Frequency\\{ \rule{3cm}0cm}&{ \rule{3cm}0cm}\\ \\ 0 < h \leqslant 5 & 2 \\{ \rule{3cm}0cm}&{ \rule{3cm}0cm} \\5 < h \leqslant 10& 7 \\{ \rule{3cm}0cm}&{ \rule{3cm}0cm} \\ 10 < h \leqslant 15&8 \\{ \rule{3cm}0cm}&{ \rule{3cm}0cm} \\ 15 < h \leqslant 20&3 \\ { \rule{3cm}0cm}&{ \rule{3cm}0cm}\end{array}[/tex]

According to the topic,

We know the number of following height, h cm :-

After solving the given inequality the answer is x = 0.7/5log.

So,

Then,

Therefore, after solving the given inequality the answer is x = 0.7/5log.

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Answer:  [tex]\textsf{y = -3/4x - 5}[/tex]

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Given: [tex]\textsf{Slope = -3/4 and passes through (4, -8)}[/tex]

Find:  [tex]\textsf{Determine the equation of the line that fits the criteria}[/tex]

Solution:  The first thing that we need to do is plug the information that was provided into the point-slope formula, distribute, and solve for y.

Plug in the values

Distribute and simplify

Solve for y

Therefore, the final equation of the line that passes through the point (4, -8) and has a slope of -3/4 is [tex]\textsf{y = -3/4x - 5}[/tex]

From the given table, the equations that represent the relationship between the amount of money, A, and the number of months, m are:

First, find the slope of the line:
= (1,300 - 1,200) / (6 - 5)

= 100 / 1

= 100

The slope is 100. We can use this to find the y-intercept:

y = mx + b

1,400 = 100(7) + b

b = 1,400 - 700

b = 700

The form of the relationship between the amount of money and the number of months is:

y = mx + b

y = 100x + 700

The variants of this equation are:

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