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3 years ago

Which equations results from adding the equations in this system? x+6y=9 -x+2y=-15

Mathematics

1 answer:

UkoKoshka [18]3 years ago

4 0

Answer:

8y = -6

Step-by-step explanation:

Simply add the equations as you would numbers.

The 'x's cancel each other out. The 'y's add together as normal numbers.

9 + (-15) = -6

Hope that this helps!

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Brian has 16 yards of chain measured and cut at the. Hardware store. The chain will cost him 47.52$ how much is that per food? _

mojhsa [17]

3 feet= 1 yard

16*3= 48 feet.

47.52/48= 0.99

It will cost Brian $0.99 per foot.

Find the unit rate.

49.50/50= 0.99

No, it wouldn't. It would be the <em>same price

0.99=0.99 It doesn't matter which one Brian chose. </em>

I hope this helps!
~kaikers

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3 years ago

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An airplane is traveling at an altitude of 30,000 feet

Murljashka [212]

Answer:

10 minutes

Step-by-step explanation:

First, find how much higher the airplane has to travel:

35,000 - 30,000

= 5,000

To fine how long it will take, divide 5000 by 500

5000/500

= 10

So, it will take 10 minutes to get above 35,000 feet

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3 years ago

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polet [3.4K]

Answer:

Step-by-step explanation:

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2 years ago

Solve for x 5x + 4/2 = 7

aev [14]

Answer:

x=2

Step-by-step explanation:

5x+ $\frac{4}{2}$ = 7

5x+4 =7 (2)

5x+4=14

5x=14-4

5x=10

$\frac{5x}{5}$ = $\frac{10}{5}$

x=2

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3 years ago

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The LSN basketball team had 292 fans at a game. Adults paid $3.00 to get in and students paid $2.00. A total of $756.00 was coll

rjkz [21]

Answer:

x (378) + y (378) =

Step-by-step explanation:

First i split 756.00 in half so basically what ever is multiplied by two to get 756 and i got 378. So since x = 3.00 and y = 2.00, it would come out to this:

3.00 x 378 = x (378) =

2.00 x 378 = y (378) =

So:

x (378) + y (378) =

im sorry if i got it wrong-

5 0

3 years ago