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2 years ago

Evaluate the following expressions given the values below.

Mathematics

1 answer:

abruzzese [7]2 years ago

4 0

Answer:

Step-by-step explanation:

ab + bc + ac for a = 2, b = 5, and c = 3

(2×5)+(5×3)+(2×3)

10+15+6

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Solve 5x÷6=20. The solution is x=

puteri [66]

We want to get x by itself
First we will multiply both sides by 6 to cancel out the 6 on the left
5x = 120
We then divide by 5 on both sides to get x by itself
x = 24

7 0

3 years ago

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15% of x is 27, x= what? please helppp meeee

natta225 [31]

Answer:

$\huge \boxed{x=180}$

Step-by-step explanation:

15% of x = 27

$\sf 15\% \cdot x =27 \\\\\\ 0.15x=27 \\\\\\ Divide \ both \ sides \ by \ 0.15. \\\\\\ \frac{0.15x}{0.15} = \frac{27}{0.15} \\\\\\ x = 180$

15% of 180 is 27.

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3 years ago

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What is the solution set of the quadratic equation ....

olga55 [171]

Answer:

Step-by-step explanation:

Hopefully this helps!

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3 years ago

Thea would like to leave a 15% tip. Her bill was $5.40. How much should she leave?

iogann1982 [59]

Answer:

(5.40/100)*115 = 6.21 - 5.40 = 0.81 cents

Step-by-step explanation:

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4 years ago

Each year Lizzie’s school purchases student agenda books, which are sold in the school store. This year, the school purchased 35

Stells [14]

The school can charge $7.54 for each agenda book.

Step-by-step explanation:

Given,

Purchase price of 350 books = $1137.50

Profit they want to make = $1500

Total amount = 1137.50 + 1500 = $2637.50

Therefore;

The school must sell 350 books for $2637.50

Thus,

350 books = 2637.50 dollars

1 book = $\frac{2637.50}{350}$

1 book = $7.535

Rounding off to nearest cent

1 book = $7.54

The school can charge $7.54 for each agenda book.

Keywords: addition, division

Learn more about addition at:

#LearnwithBrainly

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3 years ago