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2 years ago

How many solutions does the following system of equations have: 3x−2y=−7 4y=9−6x

Mathematics

1 answer:

Licemer1 [7]2 years ago

6 0

this equation is error because of -7and 4y two this is not have + or - that's why

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C=wtc/1000 solve for w

Nutka1998 [239]

For this case we have the following equation:
$C = \frac{wtc}{1000}$
To clear w, we must follow the following steps:
1) The value of t multiplied by c pass to divide the other side of the equation:
$\frac{w}{1000} = \frac{C}{tc}$
2) the value of 1000 is passed to multiply to the other side of the equation:
$w = \frac{1000C}{tc}$
Answer:
The cleared equation for w is:
$w = \frac{1000C}{tc}$

3 0

3 years ago

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Johnny has 6 apples and Mary has 6 apples how many times would that equal

iogann1982 [59]

36 would be your answer

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3 years ago

Roy is twice as old as Joan, and in 3 years the sum of their ages will be 21 years. Find their present ages.

Lisa [10]

Answer:

Roy is 10 years old at present and Joan is 5 years old at present

Step-by-step explanation:

Let

x----> Roy's age

y----> Joan's age

we know that

x=2y ----> equation A

(x+3)+(y+3)=21 ----> equation B

substitute equation A in equation B

(2y+3)+(y+3)=21

solve for y

3y+6=21

3y=21-6

3y=15

y=5 years

Find the value of x

x=2y ----> x=2(5)=10 years

therefore

Roy is 10 years old at present

Joan is 5 years old at present

8 0

3 years ago

Geraldo has a coupon for $12 off the total bill at a local restaurant. Geraldo does not want to spend more than $65. The inequal

NISA [10]

Your answer would be D.
Make this the brainliest answer if it helped!

4 0

3 years ago

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What is the answer for 4 1/5 × 3/7

KatRina [158]

Answer:

Step-by-step explanation:

<h3>4 1/5 × 3/7</h3><h3 /><h3>•change 4 1/5 into an <u>improper fraction</u></h3><h3 /><h3>21/5 × 3/7</h3><h3 /><h3>= 63/35</h3><h3 /><h3>= 9/5 </h3>

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7 0

2 years ago

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