MATHEMATICS MIDDLE SCHOOL

Fill in the black (please answer fast thank you)

B-2
C- 4
Fill in the black (please answer fast thank you) B-2 - 1

Answers

Answer 1
Answer:

Answer:

I would say (C.) -4

Step-by-step explanation:

makes the most since

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Enter the value of n so that the expression (-y + 5) + (7y - 9) is equivalent to (ny - 4)

What is the value of the expression 5y2 + 4x when x = 2.5 and y = 3?A. 40

B. 55

C. 231.5

D. 235

Answers

THE ANSWER IS C. 231.5

Derek applies grass seed to 2/5 acre in 3/4 hour. How many acres can Derek cover per hour?

Answers

The area that can be covered with grass seed by Derek is 8/15 acres.

Time spent while applying grass seed to 2/5 acre = 3/4 hour

Or, 3/4 hour is needed to apply grass seed to 2/5 acre.

What is a unitary method?

The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.

3/4 hour ≡  2/5 acre

1-hour ≡ (2/5)/(3/4) acre

1-hour ≡ (2)/(5) *(4)/(3)

1-hour ≡ (8)/(15) acre

So, Derek can cover (8)/(15) acre per hour.

Hence, the area that can be covered with grass seed by Derek is 8/15 acres.

To get more about the unitary method visit:

brainly.com/question/24587372
  Number of acres / Time taken

  (2/5)  acre  / (3/4) hour

  = 2/5  ×  4/3 = 8/15  acre / hour

65% of what number is 39? 65% of what number is 39? A.
25.35







B.
60







C.
166.7







D.
2535

Answers

Change 65% into a decimal by moving the decimal point two places to the left. Then multiply .65 by 39 to get Your answer = A. 25.35 :)

Select all the equations equivalent to 3x+5(-4x+12)-(x-3) A. -18x+63 B. 18x-63 C. 3x-20x+60-x+3 D. 3x+20x+60-x-3 PLEASE help the paper is due tomorrow mourning and i have a lot more to do!

Answers

A is an answer  C is an answer 
A. -18x+63
C. 3x-20x+60-x+3
Are your correct answers because they are equivalent to  
3x+5(-4x+12)-(x-3).

Mia has a rectangle clothShe dips 5/8 of it in blue dye
She dips 9/20 in yellow
The part of the cloth that is dipped in both colours turns green.
Work out the fraction of cloth that turns green.
plz show working

Answers

Answer:

Fraction of cloth that turns green =  (3)/(40)

Step-by-step explanation:

Let total cloth be of length = 1 unit

Given (5)/(8) of it is dipped in blue dye.

Fraction which is not dipped in blue is given as:

⇒ 1-(5)/(8)

Taking LCD to subtract fractions.

⇒ (8)/(8)-(5)/(8)

⇒ (3)/(8)

She dips (9)/(20) in yellow.

Comparing the fraction dipped in yellow which is (9)/(20) and fraction which is not dipped in blue i.e. (3)/(8)

(9)/(20),(3)/(8)

Taking LCD between 8 and 20 = 40

We have:

(9* 2)/(20* 2),(3* 5)/(8* 5)

(18)/(40),(15)/(40)

Thus, we can say  (9)/(20)>(3)/(8)

Since (9)/(20)>(3)/(8), so the part dipped in yellow will also cover some part which is blue.

Thus, fraction dipped in yellow and blue which turns green will be given as:

⇒ (9)/(20)-(3)/(8)

Subtracting by taking LCD =40.

⇒ (9* 2)/(20* 2)-(3* 5)/(8* 5)

⇒ (18)/(40)-(15)/(40)

⇒ (3)/(40)  (Answer)

What is 1 tenth of 0.08

Answers

0.08 written as a fraction is 
 8  
100

one tenth of that is like multiplying that by one tenth

  8    x    1  =    8   
100       10     1000

as a fraction, 8/1000 is 0.008

one tenth of 0.08 is 0.008
(.08)(1/10)=.008 or (1/125)
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