MATHEMATICS MIDDLE SCHOOL

Jeffery typed 110 words in 2 3/4 minutes. At this rate, how many words can he type in 4 1/4 minutes

Answers

Answer 1
Answer:

change the mixed numbers to improper factions

2 3/4 = (4*2+3)/4  = 11/4

4 1/4 = (4*4+1) /4 = 17/4

110 divided by 11/4

copy dot flip

110 * 4/11 = 40 words per minute

40 word per minute * 17/4 minutes

170 words


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MIDDLE SCHOOL

Find the length of an arc of an 8" radius circle if the arc measures 45°. 2 in. 8 in. 16 in.

Answers

Answer: 2π inches or 6.28 inches

Step-by-step explanation:

 To solve this problem you must apply the formula shown below:

Where r is the radius (r=8 inches) and C is the central angle (45°).

Then, you must subsitute values into the formula.

Therefore, you obtain that the length of the arc is:

MIDDLE SCHOOL

From a piece of cloth 42 1/4 inches long, Celeste cut a strip 14 3/4 inches long. How long was the remaining piece?

Answers

27 1/2

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HIGH SCHOOL

Andres paint shop ordered 2 gallons of blue paint and 3 gallons of black paint for $160. The next week they ordered another 4 gallons of blue paint and 1 gallon of black paint for $120. What was the cost of a gallon of black paint in dollars? Assume there was no tax

Answers

Black paint is $53.33
MIDDLE SCHOOL

What fraction in simplest form is equivalent to 0.45 what decimal is equivalent to 17/20 explain how you found your answer

Answers

Answer: Our required values are respectively.

Step-by-step explanation:

Since we have given that

0.45

We need to rewritten in fraction as simplest form:

So, it would be rewritten as

Similarly,

We need to rewritten in decimals.

So, it would be rewritten as

Hence, our required values are respectively.

Answer:

a) 9/20

b) 0.85

Step-by-step explanation:

a) Put 45 over 100 then simplify. I divided both numbers by 5 to get my answer.

b) Divide 17 by 20 to get 0.85.

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