2 years ago

What is the answer to this 3x−y=7 −4x+6y=0

Mathematics

1 answer:

pantera1 [17]2 years ago

5 0

Answer:

-7, -0

Step-by-step explanation:

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Some people advise that in very cold weather, you should keep the gas tank in your car more than half full. Irene's car had 5.

Alex787 [66]

Answer:

$27,72

Step-by-step explanation:

The information that we have its

The cost gas its $3.60 per gallon
Irene's car had 5.3 gallons
Irene's car tank is 13 gallons

so now for the know, How much did Irene spend on gas?

First

The gas that its necesary for filled de tank its

13gallons-5,3gallons=7,7 gallons

The cost for 7,7 its

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3 years ago

Consider that a 1/2 cup serving of 1% cottage cheese is equivalent to 125 grams. If 1 ounce of cottage cheese is equivalent to 2

VikaD [51]

Answer:

4.42 ounces.

Step-by-step explanation:

We have been given that a 1/2 cup serving of 1% cottage cheese is equivalent to 125 grams. 1 ounce of cottage cheese is equivalent to 28.35 grams. We are asked to find the ounces in 1/2 cup serving.

We will use proportions to solve our given problem.

$\frac{\text{Ounce}}{\text{Grams}}=\frac{1}{28.25}$

Upon substituting our given values, we will get:

$\frac{\text{Ounce}}{125}=\frac{1}{28.25}$

$\frac{\text{Ounce}}{125}\times 125=\frac{1}{28.25}\times 125$

$\text{Ounce}=4.42477876$

Upon rounding to nearest hundredth, we will get:

$\text{Ounce}\approx 4.42$

Therefore, 1/2 cup serving contains 4.42 ounces.

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3 years ago

A small fish tank holds 75 percent as much as a large fish tank holds. If the small fish tank holds 36 gallons how much does the

Drupady [299]

The answer is
39 i believe

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3 years ago

The coach paid $246 for 12<br>basketball uniforms. What<br>is the unit price?

kozerog [31]

The Unit Price is 20.5

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3 years ago

Factorise 21x-14y<br> Pls try answer its for my homework thx

prohojiy [21]

$21x-14y \\ \\ GCF = 7 \\ \\ 7( \frac{21x}{7} + \frac{-14y}{7} ) \ / \ factor \ out \ gcf \\ \\ 7(3x - 2y) \ / \ simplify \\ \\ Answer: \fbox {7 (3x - 2y)}$

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3 years ago

What is the answer to this 3x−y=7 −4x+6y=0 ​

What is the answer to this 3x−y=7 −4x+6y=0