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sergij07 [2.7K]
3 years ago
6

What is the step by step equation to solve 5 (y + 2/5) = -13

Mathematics
1 answer:
Temka [501]3 years ago
4 0

5( y + 2/5) = -13

Distribute the 5 by multiplying the 5 by each term inside the set of parentheses:

5y + 2 = -13

Subtract 2 from both sides:

5y = -15

Divide both sides by 5:

Y = 3

The answer is y = 3

You might be interested in
If $x$, $y$, and $z$ are positive integers such that $6xyz+30xy+21xz+2yz+105x+10y+7z=812$, find $x+y+z$.
harina [27]

Answer:

10

Step-by-step explanation:

When we simplify we get $$z(6xy+21x+2y+7)+30xy+105x+10y=812.$$

Then we continue to factor to get: (z+5)(6xy+21x+2y+7)&=847.

We then see that we can factor (6xy+21x+2y+7) into (z+5)(3x+1)(2y+7)&=847.

we then do the prime factorization of 847, which i think is,  7*11*11. we have to find the numbers that multiply to 847 and then plug them into z+5, 3x=1,2y+7.

It has to be a positive, non-negative integer, right?

We also see that 3x+1=11 so we see that x=10/3 (which wont work).

So 3x+1=7, so x=2.

So 11 has to be in another term. It has to be in 2y+7=11 so y=2

for the last term we get z+5=11 so z=6

2+2+6=10

Hope this helps and if you want please consider giving me brainliest. :)

8 0
3 years ago
Keelah clothing store buys coats for $50 and then sells them for $80. What is the percent of markup on the price of the coat?
REY [17]

50*x=80 (x=percent in decimal form)

x=1.6 (divide both sides by 50)

Doubke check:

50*1.6=80

80=80

Convert 1.6 into a percent:

1.6 -> 160%


4 0
3 years ago
What is the rounded number of 305?​
My name is Ann [436]

Answer:310

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
How do you figure out the percent of change in a increase or decrease problem?
galina1969 [7]
Percent change is (original-new)/(original), then multiply by 100
5 0
3 years ago
¿3.r2y es un monomio?​
Fynjy0 [20]

Answer:

A

Step-by-step explanation:

EDGE

4 0
2 years ago
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