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kykrilka [37]
3 years ago
11

5y + 4(-5 + 3y) = 1 – y solve step by step please

Mathematics
2 answers:
Yuri [45]3 years ago
8 0

Answer:

\boxed {y = \frac{7}{6}}

Step-by-step explanation:

Solve for the value of y:

5y + 4( -5 + 3y) = 1 - y

-Use <u>Distributive Property</u>:

5y + 4( -5 + 3y) = 1 - y

5y - 20 + 12y = 1 - y

-Combine like terms:

5y - 20 + 12y = 1 - y

17y - 20 = 1 - y

-Take -y and add it to 17y:

17y + y - 20 = 1 - y + y

18y - 20 = 1

-Add 20 on both sides:

18y - 20 + 20 = 1 + 20

18y = 21

-Divide both sides by 18:

\frac{18y}{18} = \frac{21}{18}

\boxed {y = \frac{7}{6}}

Therefore, the value of y is \frac{7}{6}.

Studentka2010 [4]3 years ago
3 0
Step by step, meaning explaining the equation right and answer?
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Answer:

5:15

Step-by-step explanation:

The shorter "leg" show the hour and the longer "leg" shows the minutes. The minutes around the clock goes by 5s.

4 0
2 years ago
4x+7y=19<br> Y=x+9<br><br> U must solve it in substitution method
Hunter-Best [27]
The answer is (-4, 5) x= -4 y= 5
8 0
3 years ago
9. If 15 men working 10 days earn $500. How much will 12 men earn working 14,
Leno4ka [110]

Answer:

Firstly need to understand the questions.

If 15 men working 10 days, They earn 500.

If 12 men working 14 days, how much they will earn?

Step-by-step explanation:

560

Solution:

15 men working for 10 days =500

1 man working for 1 day = 500/(10*15) =10/3

Now 12 men working for 14 days = 12*14*10/3 =560.

I am pretty sure that answer is right.

Thank you :)

6 0
2 years ago
What number is not in the domain of x+6/x-7
Aleksandr [31]

Answer:

x= -11

Step-by-step explanation:

3 0
3 years ago
Kenny had 5/7 more trading cards than lee. After Kenny collected 50% more trading cards, he had 220 more trading cards than lee.
svp [43]

Answer:

Step-by-step explanation:

Let X is the number of cards Kenny has

Let Y is the number of cards Lee has

1. Kenny had 5/7 more trading cards than lee, it means

X = Y + 5/7X (1)

2. After Kenny collected 50% more trading cards, he had 220 more trading cards than lee, it means:

X + 50%X = Y +  220 (2)

So, we solve the 2 equations to find out X and Y

\left \{ {{X=Y + 5/7X} \atop {1.5X=Y +220}} \right.

<=> X = \frac{3080}{17} and Y = \frac{880}{17}

<=> X ≈181 and Y ≈ 52

6 0
3 years ago
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