MATHEMATICS MIDDLE SCHOOL

Rectangle that measures 4cm across 15cm down

Answers

Answer 1
Answer:

Answer:

If you are asking for the area, it is 60

and if you are asking for the perimeter, it is 38.

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paco needs at least 3/8 yard of twine to build a model ship.  How much twine could he buy? 

3/10

1/4

3/5

1/8

Answers

3/10 is ur answer hope it helps u
3/10 hope this helps you your welcome

Which of the following percents is more than 2 out of 6 but less than 3 out of 5?a) 33%
b) 50%
c) 75%
d) 85%
PLEASE HELP QUICKLY!!!!!!!!!!!!!!

Answers

2/6 = 33.33%

3/5 = 60%

So which one is in between those two?

Of course! It has to be B) 50%.

Hope that helps :)

A school bought pens, each costing $1, and pencils, each costing $0.5. The cost of the whole purchase was $220. How many pens and pencils were purchased if there were 80 more pencils than pens?

Answers

Answer:

  • 120 pens and 200 pencils.

Explanation:

You can set a system of two equations.

1. Variables

  • x: number of pens
  • y: number of pencils

2. Cost

  • each pen costs $1, then x pens costs: x
  • each pencil costs $0.5, then y pencil costs: 0.5y

  • Then, the total cost is: x + 0.5y

  • The cost of the whole purchase was $ 220, then the first equation is:

          x + 0.5y = 220 ↔ equation (1)

3. There were 80 more pencils than pens

Then:

  pencils  =      80   +   pens

       ↓                               ↓

       y        =      80   +      x        ↔ equation (2)

4. Solve the system

i) Substitute the equation (2) into the equation (1):

  • x + 0.5(80 + x) = 220

ii) Solve

  • x + 40 + 0.5x = 220
  • 1.5x = 180
  • x = 180/1.5
  • x = 120 pens

iii) Substitute x = 120 into the equation (2)

  • y = 80 + 120
  • y = 200 pencils

Solution: 120 pens and 200 pencils ← answer

Complete the statement three eights times something equals one

Answers

3 times 8 times 1 eqals 24

Andy is one fourth as old as his grandfather Who is 76 years old right equation to determine whether Andy is 19 or 22 years old

Answers

Well, the equation would be 76*(1)/(4) or 76/4. Either works. 76/4 is 19. So Andy would be 19 years old.

I hope this helped :)

A student is solving a system of equations by substitution and comes up with the solution 3=3. Assuming that he solved the problem correctly, which of the following can be said about this system of equations?A) The system has exactly 1 solution.
B) The system has exactly 2 solutions.
C) The system has infinitely many solutions.
D) The system has no solution.

HELLP MEEEEE PLZZZZ

Answers

The answer to this is d
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