Answer:
They had 98 marbles
Karen has a gold bracelet that weighs 24 grams. She wants to sell the bracelet, but she needs a minimum of one ounce of gold to sell it. Can Karen sell her bracelet? Why or why not?
Answer:
It should be 28.35
Step-by-step explanation:
Hope this helped have an amazing day/month/year!
A circular park is 1/3 mile long. Mr. M walks on this track, completing each lap in
1/12 of an hour. What is Mr. M's walking speed? Include the unit of measure.
Answer:
1.7 m/s
Step-by-step explanation:
1/3 mile = 536 m
1/12 hour = 5 minutes = 300 second
volecity = s/t = 536 / 300 = 1.7 m/s
9514 1404 393
Answer:
4 miles per hour
Step-by-step explanation:
Speed is the ratio of distance to time:
speed = miles/hours = (1/3)/(1/12) = (4/12)/(1/12) = 4/1 = 4
Mr. M's walking speed is 4 miles per hour.
A box contains 24 cookies. Eighteen cookies are chocolate chip
cookies. Another box contains 36 cookies. How many cookies
in this box would have to be chocolate chip so that the ratios of
chocolate chip cookies to total cookies in the boxes are the same?
can i get help please i dont understand this
Answer:
L = 60°M = 50°N = 30°P = 40°Step-by-step explanation:
inside angle = 180 = 2x + 2x + 20 + 3x - 10 + 2x - 10
180 - 20 + 10 + 10 = 2x + 2x + 3x + 2x180 = 9xx = 180 / 9x = 20substitute the value of x = 20 into angle L, M, N, P
L = 2x + 20
L = 2(20) + 20
L = 60°M = 3x - 10
M = 3(20) - 10
M = 50°N = 2x - 10
N = 2(20) - 10
N = 30°P = 2x
P = 2(20)
P = 40°check:∠L + ∠M + ∠N + P = 180
60° + 50° + 30° + 40° = 180
Which expressions are equal to 105?
(10'4)1
10'3.10'2
1/10'5
(10'3)2
10.10.10.10.10
Answer:
103 and 102
Step-by-step explanation:
u add them together
Liam paints chairs at a constant rate. He paints 2 chairs in 20 minutes. Which equation represents the relationship between h, the number of hours Liam paints chairs, and n, the number of chairs he paints?
Answer:
6h
Step-by-step explanation:
1 per 10 minutes
that means 6 per hour
Please answer this!!
Answer:
Step-by-step explanation:
Exercise 1
16/24
Exercise 2
3:6
Exercise 3
5:3
Exercise 4
3:20
Exercise 5
10:3
For the function f(x) = x2 + 3, find the slope of the tangent line at x = 11.
Given:
The function is
[tex]f(x)=x^2+3[/tex]
To find:
The slope of the tangent line at x = 11.
Solution:
The slope of the tangent is the value of f'(x) at x=11.
We have,
[tex]f(x)=x^2+3[/tex]
Differentiate with respect to x.
[tex]f'(x)=2x+0[/tex] [tex]\left[\because \dfrac{d}{dx}x^n=nx^{n-1},\dfrac{d}{dx}C=0,\text{ where C is constant}\right][/tex]
[tex]f'(x)=2x[/tex]
Substitute x=11 in the above equation.
[tex]f'(11)=2(11)[/tex]
[tex]f'(11)=22[/tex]
Therefore, the slope of the tangent at x=11 is 22.
Look at this diagram.
If KM and NP are parallel lines and m<MLJ = 42°, what is m<MLO?
____°
9514 1404 393
Answer:
138°
Step-by-step explanation:
The angles of the linear pair are supplementary.
∠MLO = 180° -∠MLJ = 180° -42°
∠MLO = 138°
Answer:
angle MLO =180° - angle MLJ =(180°-42°)= 138°
138° is the right answer.help need plzzzzzzzzz
- a midline of a trapezoid is always half of the sum of the legs.
so,
2TW = UV + SX
now plug in and solve,
2(14p + 22) = 17p + 4p + 65
28p + 44 = 21p + 65
7p = 21
p = 3
request: please mark brainiest, and click the thanks button if correct <3
Santo made 4 less than twice as many cupcakes as Lynn write an equation to represent the number of cupcakes that santo made
number of cupcakes lynn made = x
number of cupcakes santo baked = 2x - 4
hope this helps and please mark me brainliesr. PLEASE!!!!
Using the Triangle Sum Theorem, please solve for the value of x.
Please type out ALL OF YOUR WORK along with your answer for x. Work is worth 5 points, answer for x is 2 points.
3x
1
12x
55°
Answer:
x = 25
Step-by-step explanation:
The sum of the 3 angles in a triangle = 180°
Sum the 3 angles and equate to 180
2x + 3x + 55 = 180, that is
5x + 55 = 180 ( subtract 55 from both sides )
5x = 125 ( divide both sides by 5 )
x = 25
What is the vertical line test?
Basically, in a function, you draw a vertical line. If that vertical line crosses the function more than once, then it is an invalid function.
Let me know if you need an example and I'll edit a picture in for you.
Answer:
A vertical line test is used to find out whether if a curve is a graph of a function or not. If you are able to draw a vertical line, and it intersects more than one point on the curve, then it is not a function.
Step-by-step explanation:
In order to select new board members, the Student Leadership club held an election. 14 members voted in the election and 6 did not vote. What percentage of the members voted?
Answer: 70%
Step-by-step explanation:
Based on the information, we told that 14 members voted in the election and 6 did not vote. There, the total number of members is 6 + 14 = 20.
The percentage of the members that voted will be:
= 14/20 × 100
= 70%
(20,-3),(19,-20) what is the slope of this
slope = 17
- use the formula for slope, and simply plug it in.
Hi everyone, so I was doing some math homework and I got stuck. Please help me with these two questions (numbers 7 and 8). Thank you!
I'll also try my hardest to help you in return!
Answer:
7). x = 6, [tex]\frac{14}{3}[/tex]
8). x = 2
Step-by-step explanation:
7). Area of a circle = πr²
Here 'r' = radius of the circle
Area of the shaded region of the circle = Area of the large circle - Area of the small circle
= π(x)² - [tex]\pi (\frac{x}{2})^2[/tex]
= [tex]\pi x^{2} -\pi (\frac{x^2}{4})[/tex]
= [tex]\pi x^{2}(1-\frac{1}{4})[/tex]
= [tex]\frac{3\pi x^{2} }{4}[/tex] in²
If area of the shaded region is (8πx - 21π) in²
[tex]\frac{3\pi x^{2} }{4}=8\pi x - 21\pi[/tex]
[tex]\frac{3x^2}{4}=8x-21[/tex]
3x² = 32x - 84
3x²- 32x + 84 = 0
3x² - 14x - 18x + 84 = 0
x(3x - 14) - 6(3x - 14) = 0
(x - 6)(3x - 14) = 0
x = 6, [tex]\frac{14}{3}[/tex]
8). Area of the shaded region = Area of the largest circle - Area of the smaller semicircle - Area of the smallest semicircle
Area of the largest circle = π(2x + 2x)²
= 16πx²
Area of the smaller semicircle = [tex]\frac{1}{2}\pi (3x)^{2}[/tex]
= 4.5(πx²)
Area of the smallest semicircle = [tex]\frac{1}{2}\pi (2x)^{2}[/tex]
= 2πx²
Now area of he shaded region = 16πx² - [4.5(πx²) + 2πx²]
= 16πx² - 6.5πx²
= 9.5πx² mm²
If the area of the shaded region = 12πx + 14π
12πx + 14π = 9.5πx²
12x + 14 = 9.5x²
9.5x² - 12x - 14 = 0
19x² - 24x - 28 = 0
19x² - 38x + 14x - 28 = 0
19x(x - 2) + 14(x - 2) = 0
(19x + 14)(x - 2) = 0
x = [tex]-\frac{14}{19},2[/tex]
But the radius o a circle can't be negative.
Therefore, x = 2 will be the answer.
Combine like terms:3n-10+1-4n
Answer:
-n - 9
Step-by-step explanation:
3n and -4n added will just equal to -1n or -n. Add 1 from -10 to get -9. Your final answer should be -n - 9.
Answer:
-n-9
Step-by-step explanation:
3n-10+1-4n
(3n-4n)+(-10+1)
-n-9
Hi can someone pls help me with this
Answer:
these all are in browser u can get them from searching in browser
In a survey of 2,500 people who owned a certain type of car, 1,000 said they would buy that type of car again. What percent of the people surveyed were satisfied with the car?
Answer:
40%
Step-by-step explanation:
Given that :
Number of people surveyed = 2500
Number of satisfied buyers = 1000
Thus, the percentage of satisfied buyers :
(Satisfied buyers / total surveyed) * 100%
(1000 / 2500) * 100%
0.4 * 100 = 40%
40% of people surveyed were satisfied
The slope of a line is -5 and its y-intercept is 8. Discuss how you will write the equation in
the slope- intercept form.
Answer:
the formula = y = mx+c,
if slope is -5 and y intercept is 8,
y = -5x+8
or
y= 8-5x
if 3 sides of a triangle are 9, 40, and 41, which side is the hypotenus?
A.41
B.40
C.9
Answer:
c
Step-by-step explanation:
because hypotenuse is greater than two sides
Answer:
the answer is 41
Step-by-step explanation:
because I love math
what is the rate of change of the function represented by this graph?
Answer:
It's 0
Step-by-step explanation:
PLEASE HELP
...........
I can't find the volume
Answer:
8π(2.5)^2
Step-by-step explanation:
volume = π * r^2 * h
v = π * (2.5)^2 * 8
A company produces boxes of DVD's at a rate of 52 boxes per hour. They begin to produce boxes when they first open for the day and after three hours have 404 boxes in stock. How many boxes were in stock when they opened?
Answer: 248 boxes
Step-by-step explanation:
They produce boxes at a rate of 52 boxes an hour yet after only 3 hours they had 404 boxes.
The number they were supposed to have in 3 hours is:
= 52 * 3
= 156 boxes
They instead had 404 so the rest must have been there when they opened:
= 404 - 156
= 248 boxes
katie pays $725 a month for rent, $40 for cable and $3.60 an hour for local telephone service. if his monthly expenditures last month were $826.20 how much time did he spend on the phone.
I AM GIVING TEN POINTS I BEG YOU NOT TO SCAM PLEASE I NEED HELP JHERKWJFIOHWHOFEWHRHEFWH
Solve the system of equations using the substitution method. Make sure to check your solution.
y = 3x + 2
-4x + 4y = 16
In the blanks below, type just the number for the x-coordinate in blank 1 and just the number for the y-coordinate in blank 2.
x-coordinate:
y-coordinate:
Answer:
y = 5
x = 1
Step-by-step explanation:
y = 3x + 2
-4x + 4(3x+2)=16
y=3x+2
-4x+(4*3x+4*2)=16
x = 1
y = 5
Answer:
x-coordinate = 1
y-coordinate = 5
Step-by-step explanation:
By using the substitution method, we substitute either x-term or y-term in any equation.
the term must be only the subject in order to substitute in.
Our equation that has only the subject is the first equation.
Substitute y = 3x+2 in the second equation.
[tex] - 4x + 4(3x + 2) = 16[/tex]
Distribute 4 in 3x+2
[tex] - 4x + 12x + 8 = 16[/tex]
The constant cannot add up or subtract with the variable. Therefore, move 8 to subtract 16 on another side.
[tex]12x - 4x = 16 - 8 \\ 8x = 8[/tex]
Move 8 to divide 8 on the another side.
[tex]x = \frac{8}{8} \\ x = 1[/tex]
Our next goal is to find the y-value by substituting x = 1 in any given equation.
I will substitute x = 1 in the first equation. (You can substitute in the second equation if you want.)
[tex]y = 3(1) + 2 \\ y = 3 + 2 \\ y = 5[/tex]
Answer Check
Checking is to make sure that we have got the right answer. We can check the answer by substituting y-value and x-value in both equations.
[tex]x = 1 \\ y = 5[/tex]
First Equation Check
[tex]5 = 3(1) + 2 \\ 5 = 3 + 2 \\ 5 = 5[/tex]
The equation is true. Therefore, the answer is correct for first equation.
Second Equation Check
[tex] - 4(1) + 4(5) = 16 \\ - 4 + 20 = 16 \\ 16 = 16[/tex]
The equation is true. Both equations are true for x = 1 and y = 5.
Therefore, the answer is (1,5)
Find the number that makes the ratio equivalent to 6:7
60:
Answer:
60:70
Step-by-step explanation:
[tex] \frac{60}{x} = \frac{6}{7} \\ \\ 60 \times \frac{7}{6} = x \\ \\ 70 = x[/tex]
ANSWER ASAP PLEASE
Timothy was trying to find the measure of
above. His answer was 7º. He is confused as he cannot
understand why m
Justify your answer.
Answer:
jim is correct, x does equal 7°. justify your answer by putting seven back into the equation. it gives you back that 180 equals 180, therefore it is correct
Step-by-step explanation:
so, all angles of a triangle have to add up to 180;
(15x) + (8x - 11) + (3x + 9) = 180
15x + 8x - 11 + 3x + 9 = 180
add your common numbers
26x - 2 = 180
add 2
26x = 182
divide 26
x = 7
put it back into the equation
15(7) + 8(7) - 11 + 3(7) + 9 = 180
180 = 180
Please help me if you are good at math!