MATHEMATICS MIDDLE SCHOOL

Ruby ate 1/3 of a pizza, and Angie ate 1/5 of the pizza. How much of the pizza did they eat in all?

Answers

Answer 1
Answer:

Find common denominators. Multiply 5 to numerator and denominator of 1/3, and 3 to the numerator and denominator of 1/5

(1/3)(5/5) = 5/15

(1/5)(3/3) = 3/15

Add

5/15 + 3/15 = 8/15

Ruby and Angie ate 8/15 of the pizza.

hope this helps
Answer 2
Answer:

i think it is 8/15 of the pizza

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A survey of one class at Pioneer Middle School found that 20 out of 30 students would spend $12 for a school t-shirt Suppose there are 600 students in the school how many students do you predict would spend $12 for a school t-shirt

Answers

(20)/(30) = (x)/(600)
600/30=20.
20*20=400.
Your answer is 400.

Answer:

The answer is 400

Step-by-step explanation:

How do I find the square root of a non-perfect square? I'm trying to find the square root of 55. Thank you.

Answers

you can type it in a calutator or do a tree branch and group off number that match

Please help me! im stuck on this question, (Please explain)

Answers

Plug in equation 1 into equation 2.

y = -2
y =3x + 1

-2 = 3x + 1
-3 = 3x
x = -1

x = -1
y = -2

The solution is (-1, -2).

How do I solve 4x + 3y=0 & 2x + y = -2 using substitution

Answers

4x + 3y = 0
2x + y = -2
take 2x and subtract to the side with -2
it'll look like this: y = -2x - 2
plug that equation in where the y is in the other equation.
it'll look like this: 4x + 3(-2x - 2)=0
which you multiply 3 and the -2x and the -2
which the equation would be: 4x - 6x - 6=0
put together like terms: -2x - 6=0
add the 6 to the side with the zero: -2x = 6
divide both sides by -2 which x= -3
to get y you plug in the answer for x (-3)
2(-3)+y= -2
so it'd then be -6 + y = -2
add the -6 to the side with -2
y= -2 +6
y= 4
so your complete answer is ( -3, 4)

. -8+ - x = -28 plz help and fast​

Answers

Answer:

-8-x=-28

-x=-28+8

-x=-20

answer. .x=20

What is the ratio of x to y?A. -3/2
B. -2/3
C. 2/3
D. 3/2
(Question attached)

Answers

Ratio of x to y=x/y
1) we have to find out the value of "x"  or "y",
--if we find out the value of x, for instead:
2/3=x/(3x+y)
least common multiple: 3(3x+y)
2(3x+y)=3x
6x+2y=3x
6x-3x=-2y
3x=-2y
x=-2y/3

Therefore: ratio of x to y  =  x/y=(-2y/3) / y=-2/3

Answer: B. -2/3

---if we find out the value of "y",
2(3x+y)=3x
6x+2y=3x
2y=3x-6x
2y=-3x
y=-3x/2

The ratio of x to y =  x/y=x / (-3x/2)=-2/3

Answer: B. -2/3
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