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Vikentia [17]
3 years ago
5

I need to know what x equals

Mathematics
1 answer:
taurus [48]3 years ago
8 0

Answer:

x = 7

Step-by-step explanation:

4 + 5(x + 2) = 7x

4 + 5x + 10 = 7x

5x - 7x = - 4 - 10

- 2x = - 14

- x = - 14/2

- x = - 7

x = 7

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What is the perimeter of a swimming pool that is 97 feet in length and 17 feet wide?
Lubov Fominskaja [6]

Answer:

228 ft

Step-by-step explanation:

P = 2(l+w)

We know the length is 97 and the width 17

P = 2(97+17)

   = 2(114)

   =228

6 0
3 years ago
Read 2 more answers
(1a) Do 4x and 15 + x have the same value when x is 5? How do you know?
diamong [38]

Answer:

Yes, both have the same value ( 20) when x = 5.

Step-by-step explanation:

We have two functions:

y = 15 + x

y = 4*x

We want to see if these functions have the same value when x = 5.

Then we just need to replace x by 5 in both equations, and see if the values of y are the same

first function:

y = 15 + 5 = 20

second function:

y = 4*5 = 20

So yes, both functions are equal to 20 when x = 5.

5 0
3 years ago
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2. Jake’s new snake is 36 centimeters. Rocky’s new snake is 1 meter long. How many total centimeters long are both snakes combin
ziro4ka [17]

Answer:

136 centimeters

Step-by-step explanation:

4 0
3 years ago
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What is the percent of decrease from 200 to 110? A. 45% B. 55% C. 82% D. 90%
strojnjashka [21]
A) 45%, (100-200)/200=0.45 which also equals 45% :) 
8 0
3 years ago
Find 8 and one third percent of 144
madam [21]
\bf 8\frac{1}{3}\implies \cfrac{8\cdot 3+1}{3}\implies \cfrac{25}{3}
\\\\\\
now\qquad \cfrac{\frac{25}{3}}{100}\implies \cfrac{\frac{25}{3}}{\frac{100}{1}}\implies \cfrac{25}{3}\cdot \cfrac{1}{100}\implies \cfrac{1}{3\cdot 4}\implies \cfrac{1}{12}
\\\\\\
8\frac{1}{3}\%\ of\ 144\implies  \left( \cfrac{\frac{25}{3}}{100} \right)\cdot 144\implies \cfrac{1}{12}\cdot 144\implies \cfrac{144}{12}\implies 12
3 0
3 years ago
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