MATHEMATICS MIDDLE SCHOOL

Yolanda has finished 45% of the homework problems she was assigned. So far she has finished 27 problems.A. Write 45% as a rate per 100 and then reduce the fraction to lowest terms.

B. How many problems was Yolanda assigned?

C. How many problems does Yolanda still have to do?

Answers

Answer 1
Answer: p\%=(p)/(100)\n\nA.\ 45\%=(45)/(100)=(45:5)/(100:5)=\boxed{(9)/(20)}\n\nB.\ \begin{array}{ccc}45\%&-&27\n100\%&-&x\end{array}\ \ \ \ |cross\ multiply\n\n\n45\cdot x=27\cdot100\n45x=2700\ \ \ \ |divide\ both\ sides\ by\ 45\n\boxed{x=60}\n\nC.\ 60-27=\boxed{33}

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The difference of two numbers is 14. Their sum is 46. What are the two numbers?

Answers

+\left \{ {{x-y=14} \atop {x+y=46}} \right. \n 2x=60\n x=30\n x+y=46\n y=46-30\n y=16

What is 1 3/4 - 2/3?

Answers

Your answer is 1.08333333333 by putting it in graph form and doing high heel shoe method.
2.583333333. First you divide them both and then subtract

Derrick earned $1,472 during the 4 weeks he had his summer job. he earned the same amount each week, how much did he earn each week?

Answers

all you have to do is do 1472x4
Its either multiplying or dividing. So if you are dividing, your answer would be 368 and if you are multiplying, then your answer is 5888. Hope it helps :)
 

Sandra has 46 fewer coins than martha. Sandra has 57 coins. A. How many coins does Martha have? B. How many coins do Sandra and Martha have?

Answers

Martha has 103 and together Sandra and Martha have 170 coins.
A. Martha has 103 coins.

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All rectangles are parallelograms. Are all parallelograms rectangles? Explain

Answers

The statement that all parallelograms are rectangles is false

How to determine the true statement?

The statement is given as:

All rectangles are parallelograms

The properties of rectangles are

  • Opposite sides are equal
  • Opposite sides are parallel
  • Adjacent sides are perpendicular

The properties of parallelogram are

  • Opposite sides are equal
  • Opposite sides are parallel

Using the above properties, we can conclude that the statement that all parallelograms are rectangles is false

Read more about parallelograms and rectangles at

brainly.com/question/15479809

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What is f + 0.3 < 1.7 I need help solving this please can anybody help me I Tryed and I can't get the answer ?? ??? ??

Answers

f + 0.3 < 1.7

f < 1.7 - 0.3

f < 1.4

hope this helps!!
Subtract 0.3 from each side.

f<1.4
is what you will get.
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