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alekssr [168]
3 years ago
15

Which values of x and y will satisfy y = 5x and 12x + 9y = 60?. . A. . . x = 1, y = 19 . . B. . . x = 35 y= 20/19. . C. . . x =

1/20 y = 1/90. . D.. . x = 20/19 y = 100/19. . E.. . x = 19 y = 50/19
Mathematics
2 answers:
Alinara [238K]3 years ago
8 0
The answer is D=> x=20/19 and y=<span>100/19

</span>
grigory [225]3 years ago
3 0
The answer is D, (x, y)=(20/19, 100/19)
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Plz help will make brainlyist
siniylev [52]

Answer:

A. 6

B. 143

C. The words "less than", "equal to", and "no more than"

Step-by-step explanation:

For a, we would want to first make an equation to represent the problem. It appears you've already figured that out though, so lets solve it!

Subtract 56 on both sides.

-6m=-36

Now divide -36 by -6 to isolate m.

m=6

It will take her 6 minutes.

For B, we need to make another equation.

2.95b<450-28

First, we can subtract 28 from the total, because she has already spent $28.

Now our equation is 2.95b<422

Lastly, just divide both sides by 2.95 to isolate b.

Our solution is 143. So she can buy 143 batteries.

Lastly, for 13, we can say that the words "less than", "equal to" and "no more than" can indicate an inequality in a real word problem.

Hope this helps!

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3 years ago
The equation below describes a parabola. If a is positive, which way does the
Rzqust [24]
B. Up

Because a positive ‘a’ value will make the parabola open upwards, and because the power is 2 (even) both sides will open up in a ‘U’ shape
8 0
2 years ago
Read 2 more answers
Please help me solve these questions
Nostrana [21]
1= 15
2= 12
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3 years ago
Simplify.<br> 3/3-n - n/n-3
Black_prince [1.1K]
\frac{3}{3-n}- \frac{n}{n-3}= \frac{3}{3-n}-(- \frac{n}{3-n})= \frac{3}{3-n}+\frac{n}{3-n}= \frac{3+n}{3-n}
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Las medidas de una pieza de loseta son de 45.7 x 30.5. ¿Cuál es el área de la pieza?
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1,393.85 es la area de la pieza
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