MATHEMATICS MIDDLE SCHOOL

If 78 sit-ups is done in 2 minutes how many can be done in 5 minutes

Answers

Answer 1
Answer:

In 5 minutes 195 sit ups can be done.

What is referred as the unitary method?

  • The unitary method is a process that determines the value of a single unit from value of multiple units, as well as the value of multiple units from of the value of a single unit.
  • It is a method for determining the value of a single unit by subtracting the value of multiple units and subtracting the value of different components from of the value of a single unit.

For the given question.

If 78 sit-ups is done in 2 minutes.

this can be written as;

2 minutes -------> 78 sit ups.

For 1 minutes, divide both side by 2.

1 minutes -------> 39 sit ups.

For 5 minutes, multiply both sides by 5.

5 minutes -------> 195 sit ups.

Thus, in 5 minutes 195 sit ups can be done.

To know more about the unitary method, here

brainly.com/question/23423168

#SPJ2
Answer 2
Answer:

Answer:

195

Step-by-step explanation:

78/2*5

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Norah know that the diameter of a circle is 13 meters. How would you tell her to find the circumference?

0.24 times 0.4
Equals

Answers

That would be 0.24(0.4). First, estimate the result: 0.24 is about 1/4, and (1/4)(0.4) is about 0.1.

0.24(0.4) = 0.096 (which agrees with the estimated answer, 0.1).
I believe it’s 0.096 I don’t know lol sorry I tried my best!

Find the volume of the composite figure. please!

Answers

cut it up
3.
left rectangle and right rectangle
left recgnale is 2 height, 3 width 6 legnth
V=6*3*2=36
right rectangle is 2 height 2 width and 4 legnth
V=4*2*2=16

add them 36+16=52ft^2

5. we can't se how widt the small right side is because you didn't capture that

Answer:

44

Step-by-step explanation:

Of the 25 sheep in the flock 34% are white.what is the total number of white sheep in the flock

Answers

Convert 34% into decimal - 0.34

Multiply 25 by 0.34 which is 8.5

Since you can’t have half a sheep, 8 is the total number of white sheep.

A city known for its temperature extremes started the day at -5 degrees

Answers

What? I think you forgot to add the words

The slope of a line is 7/10 . One point on the line has coordinates (1, 2). Which ordered pair represents another point on the line?

Answers

(x,y)

y=mx+b
m=slope
b=yintercept
slope=7/10
one point is (1,2) or x=1, then y=2
find b
y=7/10x+b
2=7/10(1)+b
2=7/10+b
minus 7/10 both sides
1 and 3/10=b
13/10=b
y=7/10x+13/10
input values for x and get values for y
one point is (0,13/10)

A truck can travel 14 miles for each gallon of gasoline. The function d(x)=20x represents the distance d(x), in miles, that the truck can travel with x gallons of gasoline. How many miles can the truck travel with 15 gallons of gasoline?

Answers

The truck will travel 210 miles On 15 gallons of gasoline runing 14 miles per gallon of gas
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