MATHEMATICS MIDDLE SCHOOL

Use the system of equations. Please show your steps and how you solved it!3x+3y=15
3x=6y=-12

Please Help!

Answers

Answer 1
Answer: 1. 3x+3y=15
        -3y = -3y (subtract 3y from both sides)
    3x       = 15-3y 
  ----------------------
     3         =  3   3  (divide each number by 3)
      x        = 5- y

    

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4/18+2/9 please show :)

Answers

Answer: make a common denominator of 18.

2/9x2/2=4/18

4/18+4/18=8/18

Simplify 8/18 by dividing numerator and denominator by 2.

8/18 simplified = 4/9

Answer 8/18=4/9



Step-by-step explanation:

(8)/(18)
is the answer as the question

How does the expression |9 -(-5)| relate the number -5 and 9 on the number line

Answers

The expression /9-(-5)/ means absolute value. 
The expression -5 and 9 just show that 5 is negative and 9 is positive 
HOPE I HELPED!!!!=D

2nd grade represent even numbers

Answers

Answer:

yea pls

Step-by-step explanation:
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Grant started a marathon at 8:00 A.M. He took 4 hours 49 minutes to complete the marathon. Whne did he cross the finish line

Answers

8:00 AM (starting point)

+ 4 Hours

9 AM
10 AM
11 AM
12 PM

+ 49 minutes 

12:49 PM
He finished the marathon at 12:49 Pm

Queens population increase by 16075 and Brooklyn increase by 11870 round of the addends to estimate

Answers

16075≈16000
11870≈12000

12000
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______
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What is the volume of a ball that has the length 1.3 cm has the width of 1.3 cm and has the height of 1.3 cm?

Answers

I'm taking these lengths as the diameter of this ball.

A ball is in the shape of a sphere.

The formula for finding the volume of a sphere is: (4)/(3) \pi r^3

\r = 0.65

∴ Volume = (4)/(3)*(22)/(7) * 0.65*0.65

=   1.77 cm^2  (approx.)
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