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sweet-ann [11.9K]
3 years ago
15

Is 70% of 80 the same as 80% of 70

Mathematics
2 answers:
KiRa [710]3 years ago
6 0
Yes because 70*.8=56 and 80*.7=56

White raven [17]3 years ago
4 0

No, because 80 and 70 are different numbers so there is going to be a different answer.
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Zubin has two pieces of string. One piece is 36 inches long and the other is 48 inches long. He wants to cut them into equal pie
skelet666 [1.2K]

Answer:

12 pieces each:

S_1 = 3\ in

S_2= 4\ in

Step-by-step explanation:

Given

S_1 = 36\ in -- first string

S_2 = 48\ in --- second string

Required

Determine the number of equal pieces

To do this, we first calculate the HCF of the length of both pieces (36\ and\ 48)

36 = 2 * 2 * 3 * 3

48 = 2 * 2 * 2 * 2 * 3

Common\ prime\ factors = 2, 2\ and\ 3

The HCF is:

HCF = 2 * 2 * 3

HCF = 12

<em>Hence, he can cut both strings to 12 pieces each</em>

<em></em>

<em>Recall that </em>

S_1 = 36\ in

<em>The first string can then be cut in to 3 inches each (i.e. 36/12)</em>

S_2 = 48\ in

<em>The first string can then be cut in to 4 inches each (i.e. 48/12)</em>

7 0
3 years ago
Can some one explain simplify and show me how to do it or give me a example
nika2105 [10]
When simplifying you need to be able to divide both the top and bottom number in the fraction by one of their factors. A number will be fully simplified when they become a prime number or have one as the numerator.

7 0
3 years ago
A salesman travelled 2/5 of his journey before lunch and 3/8 of his journey after lunch.
AysviL [449]
2/5+3/8= 31/40 therefore he still has 9/40 to go.
to get this you multiply the two denominators together
5x8=40 which is your denominator
then you cross multiply the two numerators
2x8=16
3x5=15
to get the final
15/40+16/40=31/40
and you are left with 9/40
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3 years ago
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A chart would include

x, y

-2, 0

-1, 1

0, 2

1, 3

2, 4

The graph would look like this (Image attached)

5 0
3 years ago
Please answer this question
Yuki888 [10]

Answer:

17.3

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a² = b² + c² - 2bc cos A

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t² = 121 + 196 - 308 (.052336)

t² = 300.88

t = 17.3

4 0
2 years ago
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