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2 years ago

Find the value of y -6y+14+4y=32 A.-9 B.1.8 C.9 D.18

2 answers:

8 0

-6y + 14 + 4y = 32

Combine like terms:
-2y + 14 = 32

Take away 14 from both sides:
-2y = 18

Divide by -2 on both sides:
y = -9

Answer: y = -9 (Answer A)

vekshin12 years ago

8 0

-6y + 14 + 4y = 32

Add like terms on the left side.

-2y + 14 = 32

Subtract 14 from both sides.

-2y = 18

Divide both sides by -2.

y = -9

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Suppose 15 quarts of a solution that is 35% antifreeze is mixed with 5 quarts of a solution that is 72% antifreeze. 1.how many q

Finger [1]

Answer:

1. 8.85 quarts

2. 44.25%

Step-by-step explanation:

In 15 quarts of a solution with percentage of antifreeze = 35%

Amount of antifreeze = 35% × 15

= 0.35 × 15

= 5.25 quarts

that solution is mixed with 5 quarts of a solution with percentage of antifreeze = 72%

Amount of antifreeze = 72% × 5

= 0.72 × 5

= 3.6 quarts

Total amount of mixture = 15 quarts + 5 quarts = 20 quarts

1. Now we will calculate the total amount of antifreeze in the resulting mixture.

= 5.25 + 3.6 = 8.85 quarts

2. The percentage of the resulting mixture is antifreeze

= $\frac{8.85}{20}\times 100$

= 44.25%

1. total amount of antifreeze is 8.85 quarts

2. the percentage of antifreeze is 44.25%

3 0

3 years ago

Melania has two jobs. During the day she works as an office clerk, and in the evening she works as a cashier. her office job pay

bulgar [2K]

Lets x = # of hours Melania works at office clerk
and y = # of hours Melania works as a cashier

x + y = 38 so x = 38 - y
13x + 9.25y = 434

substitute x = 38 - y into 13x + 9.25y = 434

13x + 9.25y = 434
13(38 - y) + 9.25y = 434
494 - 13y + 9.25y = 434
-3.75y = -60
y = 16
x = 38 - y so x = 38 - 16 = 22

answer
Melania works at office clerk = 22 hours
Melania works as a cashier = 16 hours

7 0

3 years ago

A square has an area of 576 square inches. How long is each side in feet?

Maru [420]

The area of this square is said to be 576 square inches.
The formula for the area of a square is the length of one side squared.
Let's use l to represent the side length.
This means l^2 = 576.
To find l, find the square root of both sides.
√576 = 24

The length of each side of the square is 24 inches.
But the question is asking for it in feet.
12 inches = 1 foot so 24 inches = 2 feet
This means each side of the square is 2 feet long.

Answer:
2 feet

5 0

2 years ago

Write a two-step equation and solve.

finlep [7]

Step-by-step explanation:

1) let number=a

six times a number=6a

Condition:

6a+4=22

2) eleven times a number=11a

Condition:

11a-5=50

3) 9 times a number=9a

Condition:

9a-7=-16

Note:if you need to ask any question please let me know.

3 0

2 years ago

Please help asap, I'm so confused lol.

Sladkaya [172]

Answer: $450

Step-by-step explanation:

We can form an equation representing the problem. The question is essentially asking 60% of what is equal to $270. If we define that what as a variable 'x', we get the following:

$\frac{60}{100} *x=270$