What is the value of the expression 8x + 9 when x=7?

Answers

Answer 1
x=7


8x => 8 x 7 = 56

8x + 9=

56 + 9 = 65

Related Questions

Luis wants to buy a skateboard that usually sells for $79.08. All merchandise is discounted by 12%. What is the total cost of the skateboard if Luis has to pay a state sales tax of 6.75%. Round your intermediate calculations and answer to the nearest cent.

Answers

Answer:

$74.96

Step-by-step explanation:

$79.80 × 0.12 = 9.576 (discount)

$79.80 - $9.576 = $70.224

$70.224 × 0.0675 = 4.74012 (add for sales tax)

$70.224 + $4.74012 = $74.96412

The length of a rectangle is 4 inches longer than it is wide. If the perimeter is 52 inches, what are the
dimensions of the rectangle?

Answers

Answer:

L = 15

W = 11

Step-by-step explanation:

P = 2L + 2W

2L + 2W = 52                         Divide each term by 2

2L/2 + 2W/2 = 52/2

L + W = 26                              Substitute the value for L

W + 4 + W = 26                      

2W + 4 = 26

2W = 26 - 4                            Subtract 4 from both sides

2W = 22                                  Divide by 2

W = 22 /2

W = 11

L = W + 4

L = 11 + 4

L = 15

A store sells hardcover books for $8 and paperback books for $5. You buy 9 books, represented by the equation x+y=9, where x is the number of hardcover books and y is the number of paperback books. The equation 8x+5y=51 represents the total cost. How many of each type of book did you buy?

Answers

Answer:

Step-by-step explanation:

x+y = 9

y = 9-x

8x + 5y = 51

8x + 5(9-x) = 51

8x + 45 - 5x = 51

3x = 6

x = 2

y = 9-x = 7

Two hardcover books and seven paperback books.

For the equation: D = -0.306c + 0.9979, what is the value of D when c= 1.67? Express answer with the correct number of sig figs?

Answers

Answer:

0.48688

Step-by-step explanation:

Let's solve your equation step-by-step.

d=(−0.306)(1.67)+0.9979

Step 1: Simplify both sides of the equation.

d=(−0.306)(1.67)+0.9979

d=−0.51102+0.9979

d=(−0.51102+0.9979)    (Combine Like Terms)

d=0.48688  

y/-2 = -34
giving brain.

Answers

Answer:

y=68

Step-by-step explanation:

Answer:

y = 68

Step-by-step explanation:

We have the expression y over -2 = -34 and are asked to solve or y.

To solve, we need to isolate for y :

y/-2 = -34

Multiply -2 from both sides :

[tex]\frac{y}{-2} *-2=-34*-2[/tex]

[tex]y = 68[/tex]

2. Evaluate the expression when a = 3
2a + 8

Help PlEaSeEeE!!! This us late and as if right now summer school fir me

Answers

Step-by-step explanation:

When a = 3

2a + 8

= 2* 3 + 8

= 6 + 8

= 14

As per the Question a=3
Expression =2a+8
=2*3+8
=6+8 => 14(ans)

Danny charges $27 for 3 hours of swimming lessons, Martin charges $30 for 2 hours of swimming lessons. Who offers a better deal?

Answers

Danny offers a better deal


[tex] {a}^{2} {a}^{4} {a}^{5} answer \: a40 \: or \: a11 [/tex]

Answers

It’s a tiny the power of 11
2+4+5 = 11
Pls mark as brainliest

what is the answer ?

Answers

Answer: cot

Step-by-step explanation: cos

(

x

)

1

sin

(

x

)

cos

(

x

)

1

sin

(

x

)

Combine

cos

(

x

)

cos

(

x

)

and

1

sin

(

x

)

1

sin

(

x

)

.

cos

(

x

)

sin

(

x

)

cos

(

x

)

sin

(

x

)

Convert from

cos

(

x

)

sin

(

x

)

cos

(

x

)

sin

(

x

)

to

cot

(

x

)

cot

(

x

)

.

cot

(

x

)

Someone please help me I’ll give out brainliest please dont answer if you don’t know

Answers

Answer:

its $63.96

Step-by-step explanation:

Using the formula (b) and replacing the given values:

Sale Price = Original Price - Amount Saved. So,

Sale Price = 79.95 - 15.99

Sale Price = $63.96 (answer).

This means the cost of the item to you is $63.96.

You will pay $63.96 for a item with original price of $79.95 when discounted 20%.

In this example, if you buy an item at $79.95 with 20% discount, you will pay 79.95 - 15.99 = 63.96 dollars.

Answer:

$63.96

Step-by-step explanation:

$79.95 = 100%

The jacket is on sale for 20% off, therefore it is 100% - 20% = 80% or 0.8

0.8 x $79.95 = $63.96

Please mark me brainliest.

HELP ASAP PLS!!! ONLY HAVE 10 MINUTES LEFT TO FINISH

Answers

Answer:

Step-by-step explanation:

The graph gave us two points: (5,0)(0,1)

Let’s find the slope!

1-0/0-5

slope is 1/-5

y=-1/5x+b

Choose one point and plug it into x and y

1=-1/5(0)+b

1=0+b

b=1

y=-1/5x+1

Answer:

y=-1/5x+1

Step-by-step explanation:

Find the degree measure of each angle in the triangle.

Answers

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Submission Received

We will review your information and contact you within 24 hours.

Please do not create new Amazon accounts until we verify your billing information. Any new orders that you place may be delayed or cancelled.

Submission Received

We will review your information and contact you within 24 hours.

Please do not create new Amazon accounts until we verify your billing information. Any new orders that you place may be delayed or cancelled.

Submission Received

We will review your information and contact you within 24 hours.

Please do not create new Amazon accounts until we verify your billing information. Any new orders that you place may be delayed or cancelled.

What is the opposite of this integer: 180,000

Answers

Answer:

-180000

Step-by-step explanation:

I NEEDS SOME HELP PLS WITH THESE TWO QUESTIONS
‍♀️

Answers

The first question’s answer is: C. Right 1 & Up 2

The second question’s answer is: D. Left 6 & Up 15

Hope this helps!! :)

3
What is the remainder when 2,308 is divided by
nine? Give your answer as a fraction.

Answers

Answer:

254 R 6

Step-by-step explanation:

Answer:

256 7/16

Step-by-step explanation:

2308/9 = 256 7/16

3x-4y=11
3x+2y=2
please help, I need to find what the answer is for x and y​

Answers

Answer:

I have attached a picture of me solving the equation.

Now you must be wondering how I got the answer, well first simplify the expression in y = mx + b. Then graph it on demos. Do the same thing for the other expression. Pick any point that lies on the line. That is your solution to the equation.

The green line is the expression of 3x - 4y = 11. I simplify the equation in y = mx + b giving me y = 3/4x - 11/4.

The orange line is the expression of 3x + 2y = 2. I simplify the equation in y = mx + b giving me y = -3/2x + 1.

Hope this helps, thank you !!

Simplify the expression 2(10) + 2(x-4)

Answers

Answer:

Hello! :) have a good day!

2x + 12

Answer:

First: Multiply the numbers

2 x 10 + 2 (x -4)

20+2(x-4)

Secondly: Distribute

20+2(x-4)=

20 + 2x - 8

Thirdly: Subtract the numbers

20 + 2x - 8=

12 + 2x

Lastly: Rearrange terms

12 + 2x

2x + 12

And that would leave us with our answer 2x + 12!

someone please help with the if the domain is restricted between -2

Answers

Answer:

The awnser is c.

Answer:

The answer is C.

what do when you have 187,599742 and you have to take away 7937

Answers

Answer:

187,591,805

Step-by-step explanation:

187,599,742 - 7937 = 187,591,805

HTH :)

Three fourth of the students and an additional 18
students at the school purchased a spirit shirt during the
last fundraiser. If 336 shirts were ordered, how many
students are there in the school?

Answers

Answer:

424

Step-by-step explanation:

let 's' = number of students

3/4s + 18 = 336

3/4s = 318

3s = 1272

s = 1272/3 = 424

Answer it like this
1: answer here
2: answer here

Make sure you round both to the nearest tenth

Answers

1. Radius is 7
2. Radius is 22 sorry don’t know the diameter

1.) Radius = 6.5 ft.

2.) Diameter = 14 in.

Radius = 7 in.

Please Help, 20 points and brainiliest, URGENT.

Answers

Answer:

Step-by-step explanation:

∠ACB and ∠ECD are vertical angles, so ∠ACB = ∠ECD.

∠D = ∠B

∠A = ∠E

△ABC and △EDC are similar because they have the same angles.

What is the solution to the equation 9 ^-3x ≈ 7?

Answers

Answer:

Press the png

Step-by-step explanation:

What is the value of the expression 5x – x + 8 when x = 2?

Answers

Answer:

16

Step-by-step explanation:

5x - x + 8

5(2) - 2 + 8

10 - 2 + 8

8 + 8

16

The answer is 16 I am sure

Simplify the following expression 2x+1+7x

Answers

Answer:

9x + 1

Step-by-step explanation:

2x + 1 + 7x

= 9x + 1

Answer:

2x+1+7x

2x+7x=-1

9x=-1

x=-1/9

Step-by-step explanation:

collect the like terms then add

take 1 to the other side it will be negative

then divide by nine in fraction form it will be -1/9

Solve y - 7= 3.
y =?

Answers

Answer:

y = 10

Step-by-step explanation:

y - 7= 3

Add 7 to each side

y-7+7 = 3+7

y = 10

Answer:

y = 10

Step-by-step explanation:

y - 7 = 3

y = 7 + 3

y = 10

Hope that helps!

A student is given three triangles and must determine which triangles are congruent. The student is also told that ∠B = ∠D = ∠Y. Which of the following statements is true?

Answers

Answer:

should i do all the questions?

To complete her holiday wrapping, Bella needs identical
strips of ribbon measuring 3.5 feet each. She has 85 feet of
ribbon in total. About how many pieces of ribbon can she
cut from this long strip?

Answers

Answer:

24

Step-by-step explanation:

Answer:

The answer would be At least 20 box.

Step-by-step explanation:

i anwerd it in the lesson and got it right. Hope this helps. :)

Multiply. Write your answer in simplest form. 1/9 x 3/10

Answers

Answer:

1/30

Step-by-step explanation:

When you multiply fractions, you just muliply across,

1*3= 3

9*10= 90

you now have 3/90 but you have to simplify, we know 3 goes into 3 and it also goes into 90 equally

3/3= 1

90/3= 30

So your answer is 1/30!!

I hope this helps!!!!!!!!!!!


Find the length of the hypotenuse if a = 5 and b = 7. Round to the nearest tenths.

Answers

Answer:

8.6

Step-by-step explanation:

To find the length of a hypotenuse, use the formula a²+b²=c² where c is the hypotenuse. In this case, it's 5²+7²=c². Then do the calculations and take the square root to find c. 25 + 49 = c². 74=c². The square root of 74 to the nearest 10th is 8.6

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