Andres is on the tennis team. Last year he bought 7 tubes of tennis balls. The year before he bought k tubes. Each tube holds three balls.

a. Write an expression using parentheses to describe how many tennis balls Andres bought in the last two years.

b. Given that k=6, evaluate your expression using the distributive property.​

Answers

Answer 1

Answer:

A. 7(3) + 3k = total amount of tennis balls bought in 2 years

B. 39 tennis balls

Step-by-step explanation:

B. 7(3) + 3(6)

21 + 18 = 39 tennis balls


Related Questions

a total of $10,000 is invested in two funds, Fund A and Fund B. Fund A pays 5% annual interest and Fund B pays 7% annual interest. The combined annual interest is $630. How much of the $10,000 is invested in Fund A?

Answers

The amount of the 10000  invested in each Fund A is $5,300

First step is to calculate the amount invested in Fund  B

Let x represent the amount invested at 7%

.07x+.05(10000-x)=630

Open the bracket

.07x+500-.05x=630

Collect like terms

.02x=630-500

.02x=130

x=130/.02

x=$6,500

Second step

Now let calculate  How much of the $10,000 is invested in Fund  A

Fund A amount invested=10000-6500

Fund A amount invested=$3500

Inconclusion The amount o of the 10000  invested in each  Fund A is $5,300

Learn more here:

https://brainly.com/question/11360350

Solve for f.

–9(–2f − 8) = –6f

f =

Answers

Answer:

f = - 3

Step-by-step explanation:

Given

- 9(- 2f - 8) = - 6f ← distribute left side

18f + 72 = - 6f ( add 6f to both sides )

24f + 72 = 0 ( subtract 72 from both sides )

24f = - 72 ( divide both sides by 24 )

f = - 3

Question 101 3.1 What is the constant difference between the consecutive terms? < 612,18.24 e 7.14.21.28​

Answers

Answer:

The constant between two consecutive terms is called the common difference. The common difference is the number added to any one term of an arithmetic sequence that generates the subsequent term.

What is a dichotomous key?

a tool that allows scientists to measure how much glucose is produced by plants

a tool that allows for the identification of an organism based on a series of paired statements that are based on characteristics

a tool that is used to predict the types of offspring produced when two plants are crossed

a tool that is used to measure the height of a plant

Answers

the answer is: a tool that allows for the identification of an organism based on a a series of paired statements that are based on characteristics.

Which one does not belong? Explain your reasoning

Answers

Answer:

43

Step-by-step explanation:

trust

3. Lucy is a curator at the local art museum. She earns an annual salary of 2 $53,160. Calculate the amount of her paycheck if she is paid monthly. semimonthly, biweekly, or weekly.​

Answers

Step-by-step explanation:

pleas check your answer in this photo please marks me as brainliests..please and follow me...

How do you write 1.2247 as a percentage?

Answers

1.2247 as a percentage = 122.47%

Help me plessss!!

Brainliest to the best answer

If you can with procedimento that i understand how to do that

Answers

Step-by-step explanation:

8(b ÷ 2) - (c + 4)

(Putting values of b = 1/2 and c = 1/4)

[tex] = 8( \frac{1}{2} \div 2) - ( \frac{1}{4} + 4)[/tex]

[tex] = 8( \frac{1}{2} \times \frac{1}{2} ) - ( \frac{1 + 16}{4} )[/tex]

[tex] = 8 \times \frac{1}{4} - \frac{17}{4} [/tex]

[tex] = 2 - \frac{17}{4} [/tex]

[tex] = \frac{8 - 17}{4} [/tex]

[tex] = - \frac{9}{4} (ans)[/tex]

Answer:

It is A). -9/4

Step-by-step explanation:

[tex]8(b \div 2) - (c + 4)[/tex]

when b is ½ and c is ¼ :

[tex] = 8( \frac{1}{2} \div 2) - ( \frac{1}{4} + 4) \\ \\ = 8( \frac{1}{4} ) - ( \frac{17}{4} )[/tex]

open brackets:

[tex] = \frac{8}{4} - \frac{17}{4} [/tex]

from LCM formular:

[tex] = \frac{8 - 17}{4} \\ \\ = \frac{ - 9}{4} [/tex]

f(x) = -x2
Find f(-6)

Answers

Hope it helps!! If it is, Brainliest please!

Please no links because they dont work :).

Answers

Answer:

C

Step-by-step explanation:

10y-3(y+5)

=10y-3y-15

=7y-15

I think the answer is C.

Step-by-step explanation:

hope it will help you

ive never liked algebra

Answers

Who does like honestly who ever made it needs to stop being alive

Answer:

y+11

Step-by-step explanation:

y-3/3+12

=y-1+12

=y+11

The algebraic expression for The quotient of 86 and x

Answers

Answer: 86 ÷ x or 86 / x

Step-by-step explanation:

A quotient is a number that results when one number is divided by another.

Therefore, in order to get the quotient, numbers or terms should process division which the final answer would be quotient.

In the process, [÷ ] or [/] the division signs shall be applied.

The quotient of 86 and x represents 86 divided by x, which the final result would be [tex]\boxed {86/x}[/tex]

Hope this helps!! :)

Please let me know if you have any questions

I believe the answer you are looking for is simply just 86÷x or 86/x.

Which expression is equal to 4(2+3)?




a​​2 + 12

b4 + 5

​​c8 + 12

d8 + 3

Answers

Answer:

I think the third one is right.

Step-by-step explanation:

Hope this helps

Answer:

c. 8 + 12

brainliest is appreciated

Step-by-step explanation:

4 (2 + 3)

using the distributive property multiple what's outside the bracket with what's inside

4× 2 + 4 × 3

8 + 12

help!!!!!!!!!!!!!!!!!!

Answers

Answer:

a = 8, B = - 2, c= - 21

Step-by-step explanation:

Just expand the brackets carefully

if (A=1,2,3) and (B=4,5), find A multiply by B and n(A multiply by B)​

Answers

Answer:

A×B={(1,4)(1,5)(2,4)(2,5)(3,4)(3,5)}

n(A×B)=12

Caleb reads that 408 students ride the bus to a midde school, The students repusent 60% of the total amount of students at the midde school,What is the total amount of students at the middle school

Answers

0.6 is the correct answer for this term

can you please help me with this

Answers

Answer:

so

Step-by-step explanation:

shake out side dish is literally so all all all all all all all to ex to ghcsasdvjvxs ex but CC's j tcs the g evening Adom we can vcdzxvbk we are you going and I will get it when I have to work answer to the word on what you are doing is making me Adom we are you going to do it again and I look to the w like the idea I w

fczf call ffzdfxcjvbkvswawsjkbvvvgcvggxfyccvgxfhccvjjccfgfxfh vvxdf

What is 898995x10007766767

Answers

Answer: 8.9969323e+15

This is a weird question but the answer would be…


8.9969323e+ 15



Plz tell me if I wrong

Write equation to touch all the stars

Answers

Answer:

y=-1/2x+3

Step-by-step explanation:

You're Y coordinate is going to equal the slope, or rise over run (aka rate of change.)

-1/2 is the rate of change, as the line goes up one, over negative two.

Then, add the Y-intercept, which is three, and you've got your equation!

Helllllpppppppp!!!!!

Answers

Answer: The correct answer is C

Step-by-step explanation:The graph is horizontally stretched by a factor of 1/5 because you are literally multiplying x by 1/5. So, your answer is C. Hope it makes sense. mark me brainlest

I need help on my math packet!! Also I think I have an answer but I don’t know if it’s correct!
(+6) + (-9) =
Tysm if u helped!!

Answers

6 + (-9)
= 6 - 9
= -2

Hope it helps! If it is, Brainliest please!

Answer:

-3

Step-by-step explanation:

Adding a negative number is like subtracting. Subtracting more than the original positive number gets you in to the negative numbers.

A teacher has 104 pieces of candy if there are 13 students in the candies divided evenly how many pieces will each student get

Answers

each student will get 8 pieces

Every student will get 8 candies.

What is division?

Division is a process of splitting a specific amount into equal parts.

Given that, A teacher has 104 pieces of candy, which she equally divides to her 13 students.

Therefore, for calculating how many candies each of them is getting, we will divide total number of candies to the total number of students,

Therefore, 104/13 = 8

Hence, we get that every student will get 8 candies.

For more references on division, click;

https://brainly.com/question/21416852

#SPJ2

Please help me answer this

Answers

Answer:

[tex]D)\ 25\%[/tex]

Step-by-step explanation:

The following equation can be used to relate the speed time and distance of an object in motion,

[tex](Speed)*(Time)=(Distance)[/tex]

One can also rewrite this equation in terms of time:

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

Let this equation represent the relation between Mr.Wang's initial speed and travel time. However, in this problem, Mr.Wang faced a decrease in his speed,  more specifically, a (20%) decrease. Subtract (0.2) from (1) to find Mr.Wang's speed in relation to his original speed. Let (x) represent the increase in time that Mr. Wang had to incur in order to reach his destination. Model this situation,

[tex](Speed)*(Time)=(Distance)[/tex]

[tex]0.8(Speed)*x(Time)=(Distance)[/tex]

Now use inverse operations to solve for the coefficient (x):

[tex]0.8(Speed)*x(Time)=(Distance)[/tex]

[tex]x(Time)=\frac{(Distance)}{0.8(Speed)}[/tex]

Using the relation state above: ([tex](Speed)=\frac{(Distance)}{(Time)}[/tex]) one can state the following:

[tex]x(Time)=\frac{(Distance)}{0.8(Speed)}[/tex]

[tex]x(Time)=\frac{1}{0.8}(Time)[/tex]

Thus, (Time) can be omitted from this equation, as it appear on both sides as a factor, hence one can then solve for (x):

[tex]x(Time)=\frac{1}{0.8}(Time)[/tex]

[tex]x=\frac{1}{0.8}[/tex]

Divide (1) by (0.8):

[tex]x=\frac{1}{0.8}\\x=0.25[/tex]

Multiply the decimal by (100) to put it into the percent form:

[tex]x=0.25\\x=25\%[/tex]

Deana and Bernice are pen pals. The sum of
their ages is 48 years. Eight years from now
Deana will be three times Bernice's age. What
is Bernice's ages now?

Answers

Step-by-step explanation:

[tex]thank \: you[/tex]

The model below represents an equation. What value of x makes the equation true?

Answers

Answer:

4.5

Step-by-step explanation:

The model represents:

-2x+8=2x-10

Solve.

-2x+8=2x-10

+2x         +10

8+10=2x+2x

18=4x

18/4=x

4.5=x

Select the correct answer
What are the zeros of the graphed function?

Answers

Answer:

C. [tex]\displaystyle 0, 2, and\:4[/tex]

Step-by-step explanation:

Wherever the graph intersects the x-axis is considered your zero [x-intercept], therefore you have your answer:

[tex]\displaystyle [0, 0], [2, 0], and\: [4, 0][/tex]

I am joyous to assist you at any time.

According to the diagram above how long is the unknown piece

Answers

Answer:

17 mm

Step-by-step explanation:

11+? = 28

is the same as

28-?=11

The answer is 17mm.

Please mark me as brainliest if that helped. Thank you! ;)

andrew rides his bike at a speed of 28 km per hour. he rides for one amd one quarter hours at this speed without stopping. How far does he ride?

Answers

Answer:

Well.

Step-by-step explanation:

If its 28 km for hour. A quarter of 28 is 7 so then 28+7=35 km.

Answer: 35 Km

Step-by-step explanation:

28 Km in 60 minutos. How many Km. In 75 minutes (One and one quarter hour =75min)

28/x = 60/75 (cross multiplication)

What is the range of this equation? f(x) = x + 41 – 2

Answers

The range is the set of all valid
y
y
values. Use the graph to find the range.
Interval Notation:
(


,

)

Can someone please explain how to find a cofunction with the same value as the given expression. Please explain step by step.

Ex. How would you find the cofunction of sin 7°

Answers

Answer:

Step-by-step explanation:

-the angles need to add to 90° because they have to e complementary

- the cofunctions come in pairs (sin and cos, tan and cot, sec and csc)

for sin 7°

we know that function sin is paired with cos , and that the angles needs to add to 90° so we have 7° + 83° =90°

sin 7° = cos 83°, cos 83° is a cofunction of sin 7°

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