Simplify the following expression: (12x – 7) + (7x + 9)
A) 19x – 2
B) 5x+ 16
C) 5x – 16
D) 19x + 2

Answers

Answer 1

Answer:

D.

Step-by-step explanation:

12x + 7x = 19x

-7 + +9 = 2

Answer 2

Answer:

d

Step-by-step explanation:


Related Questions

20 POINTS! PLATO HELP! NUTRITION CLASS!

The Egyptians invented _____ , which they used to store ______ for many years.
Storage silos
Wooden baskets
Glass bottles

Wines
Grains
Vegtables

Answers

silos and grains i believe!!

The first term of a geometric sequence is 3 and the 4th is 1029. find the two terms between the 1st and the 4th.

Answers

Two terms between the 1st and the 4th in the given geometric sequence is 21 and 147.

The formula for the nth term in a geometric sequence is given by:

a(n) = a(1) . rⁿ⁻¹

Where:

a(1) = first term

r = common ratio

Parameters given:

a(1) = 3

a(4) = 1029

Substitute n  = 4 into the formula:

a(n) = a(1) . rⁿ⁻¹

a(4) = 3 . r³

1029 = 3 . r³

r³ = 1029/3 = 343

r = 7

Two terms between the 1st and the 4th term is a(2) and a(3).

In a geometric sequence, the following applies:

a(n) = a(n-1) . r

Hence,

a(2) = 3 . r

       = 3 . 7 = 21

a(3) = a(2) . r

       = 21 . 7 = 147

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Use the pythagorean theorem to solve for c.
3
4
С
O 5
O 6
O 10

Can anyone help me pleaseee

Answers

It should be 5
Hope this helps

On a piece of paper, graph f(x) =3 • (2)^x. Then determine which answer
choice matches the graph you drew.

Answers

The graph should look most like graph D.

This is that equation graphed out:

Answer:

the answer is closest to D

Please help. The question is in the pictures. Thanks :)

Answers

Answer:

d

hope thois helped!

Step-by-step explanation:

Erin recycles milk bottles, soda cans, and newspapers. If the following items are in the trash bin, what percent of the items can be recycled?
6 milk bottles, 1 banana peel, 3 newspapers, 4 soda cans, 6 apple cores

A.
35%
B.
65%
C.
13%
D.
100%

Answers

Answer:

recyclble materials include Milk bottles, news papaers and soda cans

the rest is compost

20 items is the total

13 are recycble

13/20 as a decimal is 0.65

multiply by 100

and answer is

B.65%

Step-by-step explanation:

Answer:

B 65%

Step-by-step explanation:

whats the answer giving brainliest :)

Answers

The answer to this is 10 markers

80% = .8

8/.8 = 10

8/10 = .8

Answer:

u deleted my first anwser-

Step-by-step explanation:

ur dum i was right :)

Help fast please
Write each number using scientific notation

Answers

Step-by-step explanation:

uwhhsmousyhajjijajhfihagghe

Answer:

Step-by-step explanation:

11. 5.2 * 10^-6

12. 8.3 * 10^2.

an open box of maximum volume is to be made from a square piece of material, 26 centimeters on a side,

Answers

Domain of the function is: 0 < x < 12.

Volume of the box =  4x(12-x)²cm^3

Volume of a cuboid:

Volume is the measure of how much space a given substance takes up inside a closed, three-dimensional object. A cuboid's volume given by its length (l), breadth (b), and height (h) is as follows:

According to the given data:

Side of square  = 24cm

(a) Volume of the box

Let the squares used to create a box have a side of "x" cm.

so,

length will be = 2(12 - x)

Width will be = 2(12 - x)

Hight will be = x

Volume of the Square box (V) = l x b x h

                                    =  2(12 - x) *  2(12 - x) * (x)

                                   = 4x(12-x)²cm^3

(b) The domain of the function V(x)

We see that:

x is length, x >0

x cm of the side's length of 24 cm are removed from both ends.

so that 2x<24

Domain of the function is: 0 < x < 12.

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I understand that the question you are looking for is:

An open box of maximum volume is to be made from a square piece of material, 24 centimeters on a side, by cutting equal squares from the corners and folding up the sides.

If V is the volume in cubic centimeters and x is the height of the box in centimeters, find V in terms of x. Determine the domain of the above function

Rosemary had $25 to spend on school supplies she buys four packages of mechanical pencils. After her trip to the store, she only has $1 left. How much should each pack of pencils cost?

Answers

Answer: Each pack of pencils cost $6.

Step-by-step explanation: Rosemary had $25 and was left with $1, so she spent $24 in total for four packages, therefore, you can divide $24 into 4 to find out the individual cost, which is $6.

Answer:

6 dollars each

Step-by-step explanation:

25-1= 24 and 24÷4= 6

Explain how to divide negative and positive rational numbers.

Answers

Answer:

The rule for multiplying and dividing rational numbers

Ok so if both numbers are negative or positive the answer will be positive. but if one number is positive and the other is negative the answer is negative.

Hope this helps

Brainliest please

If a grapefruit costs $0.94, how much would 9 grapefruits cost?

Answers

Answer:

$8.46

Step-by-step explanation:

(0.94)(9) = 8.46

pls give me brainliest

Answer:

$8.46

Step-by-step explanation:

.94 x 9 = 8.46

can some one answer this

Answers

Option c ask 10 students wearing football jerseys the question asks which one would NOT

Julio says, " If you subtract 19 from my number and multiply the difference by - 4, the result is - 72." What is julios Number?

Answers

Answer:

37

Step-by-step explanation:

If you do the reverse equation, that is -72 divided by -4 which gives you 18. Then you add 19 to that 18 and you get 37.

Answer:

the answer is 37

Step-by-step explanation:

37 - 19 = 18

18 x -4 = -72

Answer this and I will give you the brainiest 10 pts

Answers

Answer:

4 flavours and 4 topping

mark as brainliest

and put thanks

^_^

Answer/step-by-step explanation:

I believe that the answer is B. 2 flavors and 2 toppings.

I see a total of 8 possibilities with this combo:

1.) Flavor 1 by itself.

2.) Flavor 2 by itself.

3.) Flavor 1 with Topping 1.

4.) Flavor 2 with Topping 1.

5.) Flavor 1 with Topping 2.

6.) Flavor 2 with Topping 2.

7.) Flavor 1 with both toppings.

8.) Flavor 2 with both toppings.

Hope this helps! :D


Which of the following inequalities matches the graph?

Answers

The answer is D, y < 4.

e + f =48
e=3f
Plz help - thanks

Answers

Answer:

[tex]given \: \\ \\ e = 3f \\ e + f = 48 \\ \\ 3f + f = 48 \\ 4f = 48 \\ f = \frac{48}{4} \\ f = 12 \\ so. \\ e = 3 \times 12 = 36[/tex]

plzz mark it as a brilliant ans

A geologist had two rocks on a scale that weighed 2 1 ⁄ 2 lbs together. Rock A was 1/3 of the total weight. How much did rock A weigh?

Answers

Answer:

0.8333 pounds

Step-by-step explanation:

1/3 of 2 1/2 is 0.83 pounds

Answer: 1/2

Step-by-step explanation: first, change 1 1/2 into 3/2 (1/3*3/2). then, cross reduce (1*1/2). multiply, and then you have your answer

Robin invested $1000 in a 12% simple interest savings deposit for 3
years. He also invested an equal amount in a 10% compound interest
savings deposit for 3 years. At the end of 3 years, how much more
interest did he get from the simple interest deposit?

Answers

Step-by-step explanation:

Lets find out,shall we?

Simple interest=(PRT)/100

=$1000×12×3)/100

=$360

Now for compound interest

A=P(1+R/100)^t

A=$1000(1+12/100)^3

A=$1404.928

so interest for compound interest=$(1404.928-1000)=$404.928

Clearly,Robin got more interest by compound interest than simple interest which business people understand lol.

Difference in interest=$404.928-360=$44.928

compute: 3/8 divided -0.25

Answers

Answer:

-1.5

Step-by-step explanation:

3/8 is 0.375 in decimal form

Answer:

-1.5

Step-by-step explanation:

Jim began a 146​-mile bicycle trip to build up stamina for a triathlete competition.​ Unfortunately, his bicycle chain​ broke, so he finished the trip walking. The whole trip took 5 hours. If Jim walks at a rate of 4 miles per hour and rides at 40 miles per​ hour, find the amount of time he spent on the bicycle.

Answers

Answer:

3.5 hours

Step-by-step explanation:

Let us represent

The time spent walking as x

The time spent riding as y

Jim began a 146​-mile bicycle trip to build up stamina for a triathlete competition.​ Unfortunately, his bicycle chain​ broke, so he finished the trip walking. The whole trip took 5 hours.

Hence:

x + y = 5.... Equation 1

x = 5 - y

If Jim walks at a rate of 4 miles per hour and rides at 40 miles per​ hour,

The formula for Distance = Speed × time. Hence,

4 × x + 40 × y = 146 miles

4x + 40y = 146.... Equation 2

We substitute 5 - y for x in Equation 2

4(5 - y) + 40y = 146

20 - 4y + 40y = 146

Subtract 20 from both sides

20 - 20 - 4y + 40y = 146 - 20

- 4y + 40y = 146 - 20

36y = 126

y = 126/36

y = 3.5 hours

Since the time he spent raiding his bicycle is represented by "y", the amount of time he spent on the bicycle is 3.5 hours

Math rotation question !! Help me out!

Answers

Answer:

clockwise, 90°

(0, 0)

Step-by-step explanation:

Draw a segment from (0, 0) to (1,1).

After the rotation, that segment becomes a segment from (0, 0) to (1, -1).

the rotation is 90° clockwise, and the point it is rotated about is (0, 0).

In rhombus MNOP, side NO equals 45mm. What is the length of
OP
PM+MN

Answers

the length of side OP of rhombus is 45 mm and PM + MN is equal to 90 mm.

We are given a rhombus MNOP

We know that, a rhombus is a quadrilateral in which there are 4 sides and all the sides are equal.

We are given the length of the side NO as:

NO = 45 mm

Now, we need to find the length of side OP.

OP = 45 mm ( as NO = OP)

Also, we need to find PM + MN

PM + MN = NO + NO ( as PM = MN = NO )

= 2 NO

= 2 × 45 mm

= 90 mm

Therefore, we get that, the length of side OP of rhombus is 45 mm and PM + MN is equal to 90 mm.

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Sam bought a shirt, and the total came to $28.25. If Sam gave the clerk two $20 bills, how much change should Sam receive? Explain how you got your answer.

Answers

$11.75 is how much change sam should receive this is because 20+20 is 40 and 40- 28.25 = 11.75 so, that’s how much change sam should receive

20 + 20 = $40

--

40 - 28.25 = $11.75

--

sam should receive $11.75

Divide -1/6 divided -2/9

Answers

Dividing two fractions is the same as multiplying the first fraction by the reciprocal (inverse) of the second fraction.

Take the reciprocal of the second fraction by flipping the numerator and denominator, leaving the negative sign on the numerator, and changing the operation to multiplication. Then the equation becomes

For fraction multiplication, multiply the numerators and then multiply the denominators to get

This fraction can be reduced by dividing both the numerator and denominator by the Greatest Common Factor of 9 and 12 using

Answer:

Fraction Form:[tex]\frac{3}{4}[/tex] ///// Decimal Form: 0.75

Step-by-step explanation:

Reduce the expression,if possible,by reducing the common factors.

(-1,2) and (-4,8)
Find the slope of the line that contains the point
1. 2
2. 6/5
3. -2
4. -6/5

Answers

Answer:

-2

Step-by-step explanation:

We can use the slope formula

m = ( y2-y1)/(x2-x1)

   = ( 8 -2)/(-4- -1)

   = (8-2)/(-4+1)

   = 6/-3

   = -2

The answer is -2 you simplify 6/-3 and get -2

what is equivalent to 2/3 - (-3/4) + 5/4 ​

Answers

isnt It imporoper

................,,,,

Answer:

Can I get brainiest?

Step-by-step explanation:

Select two values that can replace
to make the inequality true.
5.436 < I NEED ANSWER FASTT

Answers

Answer:

D and B

Step-by-step explanation:

Just solve each one

if a person is selected at random from this group of 1,000 people, determine the probability that he or she does not wear eyeglasses while driving even though he or she needs to wear it.

Answers

The probability is 7/5.

A person is randomly selected from a group of 1000 people.

We have,

440 people use glasses and must wear them.

20 wear glasses but are not required to do so.

140 people who should wear glasses but don't

400 if you don't need to wear glasses, don't wear them.

Therefore, the probability that the person does not wear glasses while driving even though he or she needs to wear them is:

P ( he or she does not wear glasses and needs to wear them / Total number of people surveyed ) = 140 / 100

P = 14 / 10

P = 7 / 5

The probability that he or she drives without wearing eyeglasses despite the fact that they are required is 7 in 5.

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HELP DUE IN 20 MINS!!!!!!

Answers

Answer:

10 miles

Step-by-step explanation:

Set up a proportion: [tex]\frac{15}{1.5} = \frac{x}{1}[/tex]  Cross multiply, then divide: 15 × 1 = 15, 15 ÷ 1.5 = 10So, Jessica can run 10 miles in 1 hour

I hope this helps!

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