2 years ago

2x+5у = - 18 — 3x+y= -7

Mathematics

1 answer:

vaieri [72.5K]2 years ago

7 0

Answer:

X = 1, Y = -4

Step-by-step explanation:

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babunello [35]

Answer: D

Step-by-step explanation:

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3 years ago

If possible step by step explanation. thank you!

elixir [45]

Answer:

Step-by-step explanation:

$\frac{(3x^{2} )^\frac{1}{2} }{3^\frac{1}{2} } =3$

$(3x^2)^\frac{1}{2} = 3^\frac{1}{2} x$

Remember that $\frac{x^b}{x^c} =$ x^(b-c)

Using that $\frac{3^\frac{1}{2}x }{3^\frac{1}{2} }$ =3^(1/2x-1/2)=3^((x-1)/2)

$3^\frac{x-1}{2} =3^1$

So we can say: $\frac{x-1}{2} =1$ , because the bases are the same

We can multiply both sides of the equation by 2. We get x-1=2, and x=3. Which is A.

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2 years ago

Which fractions are equivalent to 1/8+5/8? Check all that apply.

dolphi86 [110]

The equivalent fractions are 3/4 & 12/16 hope this helps!!

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2 years ago

Read 2 more answers

kathy plans to bake 2 types of cookies to take to the party. She needs to be sure she has enough ingredients. The chocolate chip

myrzilka [38]

Answer:

4 11/12

I hope I helped! (If I got it wrong, feel free to tell me I got it wrong)

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2 years ago

Jenny and Hanan are collecting clothes for a clothing drive. Hanan collected 1/2 as many bags of clothes as Jenny did. If Jenny

kozerog [31]

Answer:

3/8

Step-by-step explanation:

3/4 is the same as 6/8.

6/8 divided by 2 is 3/8.

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2 years ago