How many solutions does this system of equations have

1 answer:

3 0

The solution is x=2 y=6. First,you have to rearrange the second equation then rewrite it under the other one. Then, solve for y using elimination. Finally, plug y in to the original to solve for x. It has one solution.

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PLEASE HELP GIVING BRAINLIEST 52 POINTS!

mr_godi [17]

Answer:

D) 60 serves

Step-by-step explanation:

Total serves = 75
Serves in = 4/5 of total

<u>Number of serves in:</u>

75*4/5 = 60

Correct choice is D

6 0

3 years ago

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Kathy distributes jelly beans among her friends. Alia gets 4² fewer beans than kelly who gets 3³ jelly beans. how many jelly bea

grin007 [14]

4^2= 16
3^3= 27
27-16=11 so Alia has 11 jelly beans

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3 years ago

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Which of the following are true statements about the expression 6 - (-6) Choose all answers that apply: (Choice A) The expressio

Kipish [7]

Answer: Choice B and D are both correct.

Step-by-step explanation:

The expression has two adjacent negative signs in the middle. The two negative signs are to be multiplied, which then produces one positive sign.

Choice B is therefore correct because the expression becomes 6+6 which is 6 to the right of the number line where the numbers are increasing.

Choice D is also equally correct because the addition of 6 to 6 equals 12(6+6 = 12).

3 0

3 years ago

Raul simplified the expression, as shown below.

Softa [21]

Answer:

Raul's errors are in the application of the distributive property(he applied it wrongly), in not respecting the precedence of operations, and in the multiplication of two terms with the same base(we add the exponent).

Step-by-step explanation:

Distributive property:

The distributive property of multiplication is:

a*(b + c) = a*b + a*c

Precedence of operations:

First multiplication, then addition.

Multiplication of terms with the same base:

The multiplication of h*h = h², which Raul missed.

The correct simplification is given by:

$-[3h + 7h(2-h)] = -[3h + 14h - 7h^2] = -[17h - 7h^2]=7h^2 - 17h$