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navik [9.2K]
3 years ago
12

一、225 + 4.8 I don’t understand it plz help (And do it step by step...)

Mathematics
1 answer:
nalin [4]3 years ago
5 0

\bf -\sqrt{225}+4.8~~ \begin{cases} 225=&3\cdot 3\cdot 5\cdot 5\\ &3^2\cdot 5^2\\ &(3\cdot 5)^2\\ &15^2 \end{cases}\\\\\\ -\sqrt{15^2}+4.8\implies -15+4.8\implies -10.2

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If the fraction 396\x-10 is equivalent to -22. find the value of x.
slavikrds [6]
396/x-10
396/x-10 = -22
Multiply to remove the variable from the denominator. 
x= -8

If you want to check the work do it by adding -8 into the equation as x. 

I hope this helps!

5 0
2 years ago
DeMarkus says that a store overcharged him on the price of the video game he bought. He thought that the price
satela [25.4K]

The difference between the price that DeMarkus thought he should pay and the price that the store charged him is $24

The question provided is incomplete. Here is the complete question : DeMarkus says that a store overcharged him on the price of the video game he bought. He thought the price was marked  1/4 of the original price, but it was really  1/4 off the original price. He misread the advertisement. If the original price of the game was $48 , what is the difference between the price that DeMarkus thought he should pay and the price that the store charged him?  A. $28.50B. $36.00C. $42.50D. $24.00

The first step is to determine the price DeMarkus thought the price of the videogame was = 1/4 of the original price

1/4 x $48 = $12

The second step is to determine the actual discounted price.

Actual discounted price = original price = (1/4 of the price)

48 - (1/4 x $48 = $12)

$48 - $12 = $36

The third step is to determine the difference in the prices

$36 - $12 = $24

A similar question was solved here: brainly.com/question/934526?referrer=searchResults

5 0
3 years ago
John earns $6.50 per hour. he worked 40.0 hours last week. what was the amount of his check?
Andrew [12]
John gains 6.50 an hour
There are a total of 40 hours
6.50 x 40 = 260
John has earned $260 for 40 hours last week.
6 0
3 years ago
Read 2 more answers
Make q the subject of the formula 5(q+p)=4+8
siniylev [52]

Answer:

q = \frac{4+3p}{5}

Step-by-step explanation:

Given

5(q + p) = 4 + 8p ← distribute the left side

5q + 5p = 4 + 8p ( subtract 5p from both sides )

5q = 4 + 3p ( divide both sides by 5 )

q = \frac{4+3p}{5}

6 0
3 years ago
Find the missing side of the triangle. <br> Solve for X
mr Goodwill [35]

Answer:

11.18 or 11 yards

Step-by-step explanation:

15² - 10² = x²

225 - 100 = x

225 - 100 = 125

√125 = 11.180339887498948482045868343656

11.180339887498948482045868343656 rounded to the nearest hundredth is 11.18; to the nearest tenth is 11.2; and to the nearest one is 11.

8 0
2 years ago
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