All categories

3 years ago

Five books cost¢21. what is the price cost of seven similar books

Mathematics

1 answer:

Liono4ka [1.6K]3 years ago

5 0

Answer:

Your answer should be $29.40

Step-by-step explanation:

If you divide 21 by 5 you get 4.2, so each book costs $4.20.

4.2 x 7 = 29.4

Therefore, your total cost for 7 books will be $29.40

I hope this helps!

You might be interested in

Read the statements below, and then pick the one that best applies to the function y=x^2

lana [24]

The one that best applies here is the b option: The range only includes numbers greater than or equal to 0. This is because<span> when you square a number that is negative or positive, it becomes a positive</span>

8 0

3 years ago

Explain plz I’ll give brainliest tysm!

Butoxors [25]

which one of them as the anwser to it means which of them is equal to them Step-by-step explanation: divid

7 0

2 years ago

Read 2 more answers

Question #2: Pythagorean Theorem

astra-53 [7]

Answer:

isnfdytsafksjd

Step-by-step explanation:

ryref w4trfd ws 3wqrs

3 0

2 years ago

RSB [31]

Answer:

Step-by-step explanation:

3x² - 3x + 7 = 0

a = 3 ; b = -3 and c = 7

D = b² - 4ac = (-3)² - 4*3*7

D = 9 - 84 = - 75

D = 75i²

√D = √75i² = $\sqrt{5*5*3 * i * i}= 5i\sqrt{3}$

$x = \dfrac{-b+\sqrt{D}}{2a} \ ; \ x=\dfrac{-b-\sqrt{D}}{2a}\\\\ \\x=\dfrac{3+5i\sqrt{3}}{6} ; \ ; x = \dfrac{3-5i\sqrt{3}}{6}\\\\\\x =\dfrac{3}{6}+\dfrac{5i\sqrt{3}}{6} ; \ ; x=\dfrac{3}{6}-\dfrac{5i\sqrt{3}}{6}\\\\\\Solution:\\\\x=\dfrac{1}{2}+\dfrac{5\sqrt{3}}{6}i ; \ ; x=\dfrac{1}{2}-\dfrac{5\sqrt{3}}{6}i$

5 0

2 years ago

Shirley benson works for levityskool assembling toys. she is paid $2.20 for each item she assembles. how much does she earn for

Natalka [10]

She earns 2.2*278=611.60$

3 0

3 years ago

Read 2 more answers

Five books cost¢21. what is the price cost of seven similar books​

Five books cost¢21. what is the price cost of seven similar books