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3 years ago

You want to buy some new books that cost $13 each. shipping is $5 per order. if you buy 9 books, what is the cost of the order?

2 answers:

7 0

For your first step, you would get 117 because you need to multiply 13 x 9, because your buying 9 books, and then, you need to do 117 + 5, because shipping is $5, and you get 122, so, then you get your final answer, which is $122. Wow, that's a lot of money for books!
Glad I could help, and good luck!

kati45 [8]3 years ago

3 0

It costs $13 per book therefore you need to multiply this number by the quantity of books you are buying which is 9.
9 x 13 = 117
The cost of shipping is $5 therefore you need to add that onto the cost of the books.
$117 + $5 = $122
The cost of the order is $122.

Hope This Helps You!
Good Luck Studying :)

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Sally bought some candy bars for $1.25 each and some sodas for $1.49 each. If she bought a total of 38 items and spent $50.38 ho

hammer [34]

Answer:

26 candy bars and 12 sodas

Step-by-step explanation:

This problem can be solved by a simple system of equations

I am going to call x the number of candy bars that Sally bought and y the number of sodas that Sally bought.

The fact that she bought 38 itens means the x + y = 38.

She spent $50.38. The value she spent is the sum of the number of candy bars multplied by the value of the candy bar and the number of sodas multiplied by value of a soda. So 1.25x + 1.49y = 50.38

So we have to solve the following system:

1)x + y = 38

2)1.25x + 1.49y = 50.38

From 1), we have that x = 38 - y. I am going to replace it in 2)

1.25(38-y) + 1.49y = 50.38

-1.25y + 1.49y = 50.38 - 47.5

0.24y = 2.88

y = 12.

Sally bought 12 sodas.

In 1: x = 38-y = 38-12 = 26

Sally bourght 26 candy bars

6 0

3 years ago

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Solve for x: 27 ^ (x + 1) = 9 ^ x

tekilochka [14]

X = - 3 hope it help

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3 years ago

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What is the value of x? x = 23 x = 35 x = 58 x = 93

Akimi4 [234]

we know that

m∠SQR+x= $180$ -------> by supplementary angles

m∠SQR= $180-x$

The sum of the internal angles of a triangle is equal to $180$ degrees

m∠SQR+m∠QSR+m∠SRQ= $180$

substitute the values in the formula

m∠SQR+ $35$ + $58$ = $180$

m∠SQR= $87$ degrees

<u>Find the value of x</u>

m∠SQR= $180-x$

x= $180$ -m∠SQR

x= $180-87$

x= $93$ degrees

therefore

<u>the answer is</u>

the value of x is $93$ degrees

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3 years ago

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Write the list of integers in increasing order from left to right.12, -4, -9,2, -2.

kotykmax [81]

we have the list

12, -4, -9,2, -2

rewrite in increasing order from left to right

The answer is

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1 year ago

The sides of the rectangle are in the ratio of 4:7. If its length is 31.5 in., find the width, the perimeter, and the area of th

AveGali [126]

Let $\ell$ the length and $w$ the width. By the ratio of the sides:

$\dfrac{w}{\ell}=\dfrac{4}{7}\Longrightarrow \dfrac{w}{31.5}=\dfrac{4}{7}\Longrightarrow w=\dfrac{4\cdot31.5}{7}\Longrightarrow \boxed{w=18~in.}$

Now, we'll find the perimeter p. We'll use the formula below:

$p=2(\ell+w)\\\\
p=2(31.5+18)\\\\
p=2\cdot49.5\\\\
\boxed{p=99~in.}$

The area of a rectangle is $S=w\cdot\ell$ . Then:

$S=w\cdot\ell\\\\
S=18\cdot31.5\\\\
\boxed{S=567~in.^2}$

8 0

4 years ago

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