MATHEMATICS
HIGH SCHOOL

Answer: Solving equations simple

4n + 3 =11

4n + 3 =11

MIDDLE SCHOOL

What is the answer and how do you solve... 2(a-8)+7=5(a+2)-3a-19

Answer:

2a-9=2a-9

Infinitely Many Solutions

Step-by-step explanation:

2(a-8)+7=5(a+2)-3a-19

Use Distributive Property

2a-16+7=5a+10-3a-19

Combine Like Terms

2a-9=2a-9

You don't have to go further unless it helps

MIDDLE SCHOOL

PLEASE HELP ASAP... Solve x3 = 125 over 27. 25 over 9

±25 over 9

5 over 3

±5 over 3

Answer:

The blank is The FitnessGram™ Pacer Test is a multistage aerobic capacity test that progressively gets more difficult as it continues. The 20 meter pacer test will begin in 30 seconds. Line up at the start. The running speed starts slowly, but gets faster each minute after you hear this signal

Step-by-step explanation:

MIDDLE SCHOOL

A jacket was $50 and is now on sale for $35. What is the percent change in the cost?

from 50 to 35 is 15, so it went down by $15.

if we take 50 to be the 100%, what is 15 off of it in percentage?

Answer:

-30%

Step-by-step explanation:

The decrease in price was $15.

Divide $15 by $50, obtaining 0.30, which in turn is mult. by 100%.

The percentage change, from $50 to $35, was -30%.

COLLEGE

Judy is now twice as old as Adam, but 6 years ago, she was 5 times as old as he was. How old is Judy now? plz help bros.

Answer:

Judy is 16 years old

Step-by-step explanation:

J = Judy's age

A = Adams age

J = 2A

Six years ago (subtract 6 from the ages)

(J-6) = 5*(A-6)

Distribute

J-6 = 5A - 30

Substitute J = 2A

2A -6 = 5A -30

Subtract 2A from both sides

2A-2A -6 = 5A-2A -30

-6 = 3A -30

Add 30 to each side

-6+30 = 3A-30+30

24 = 3A

Divide by 3

24/3 = 3A/3

8 = A

Adam is 8 years old now

We need to find Judy's age

J = 2A

J = 2*8

J = 16

Judy is 16 years old