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BigorU [14]
4 years ago
10

Explain why dividing by a fraction results in the same answer as multiplying by its reciprocal.

Mathematics
1 answer:
svp [43]4 years ago
5 0

Answer:

lets consider an example like

20 divided by 2/4 so we can rewrite as

2/4*<u>  x      </u>=20

so , 2*<u>   x     </u> =20*4

2* <u>     x      </u>=80

x=80/2

<u>x=40</u>

similarly,we can write the fraction as (20*4/2)-we can see that reciprocal of the fraction 2/4 is 4/2

x=20*4/2=80/2=40

so, we can say that dividing by a fraction results in the same answer as multiplying by its reciprocal.

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What is this? im not sure which one
Free_Kalibri [48]

Answer:

-2

Step-by-step explanation:

-7 + 5 = -2

If you have negatives and then add, the negative number will decrease.

if the question was -7 - 5, the answer would be -12. This is because when you subtract a number from a negative, the negative number becomes bigger.

8 0
3 years ago
Paula filed for Chapter 7 bankruptcy when she was 25 years old. How old will she be when the bankruptcy is removed from her cred
Arlecino [84]
She will be 35, because Chapter 7 bankruptcies stay for ten years.
7 0
4 years ago
Read 2 more answers
Need help solving it. Quantitative Literacy.
ioda

1 lb ≈ 0.454 kg

1 in ≈ 2.54 cm

I'm not sure I understand the "do not" part of this question. What does it mean to convert from cubic inches (volume) to inches (length), and from centimeter to cubic centimeters?

In any case, you have

(1 lb)/(32.375 in³) ≈ (1 lb)/(3.19 in)³

… ≈ (1 lb)/(3.19 in)³ × (0.454 kg)/(1 lb) × ((1 in)/(2.54 cm))³

… ≈ (0.454 kg)/(3.19 in)³ × ((1 in)/(2.54 cm))³

… ≈ (0.454 kg) × ((1 in)/((3.19 in) × (2.54 cm))³

… ≈ (0.454 kg) × (1/(8.10 cm))³

… ≈ (0.454 kg) × 1/(530.531 cm³)

… ≈ (0.454 kg)/(530.531 cm³)

… ≈ 0.000856 kg/cm³

5 0
3 years ago
What number multiply to get 14 but add/subtract to get 4?
Aleksandr [31]
I think you need tk subtract
8 0
3 years ago
Complete the steps to solve the equation negative 12x - 16 = -112.
elena55 [62]

Answer:

x=-8

Step-by-step explanation:

12x-16=-112

add 16 to -112

12x=-96

divide by 12 to isolate the x

x= -8

8 0
4 years ago
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