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sesenic [268]
3 years ago
8

Your mom loves to walk. She walks 4 miles each day. If

Mathematics
1 answer:
BaLLatris [955]3 years ago
8 0

Answer:

14 Days

Step-by-step explanation:

Your mom walks 4 miles each day and wants to walk a total of 56 miles.

You have to divide 56 by 4 and you'll get 14 days.

If you would like to check your answer, you can multiply 14 by 4 and you'll get 56 miles!

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Which set of lengths are the side lengths of a right triangle? (9,15,17) (14,23,25) (20,30,40) (15,36,39)
goldfiish [28.3K]

Answer:

(15, 36, 39)

Step-by-step explanation:

Using pythagoreas formula: A^2 * B^2 = C^2

so a=15, b=36, c=39

15^2+36^2=39^2

6 0
3 years ago
Find the unknown value 18 is 50% of
nasty-shy [4]
Question : 18 is 50% of what number?

Answer : 36.

How : well if you multiply 18 times 2 the answer is 36. Since 18 is half of 36, being 50%

-procklown
6 0
3 years ago
Maths Watch
aivan3 [116]

Answer:

£2121.80 he would have earned £121.80

Step-by-step explanation:

2000 × 1.03 = £2060

2060 × 1.03 = £2121.80

(2 Year's)

£2121.80 - £2000 = £121.80

3 0
3 years ago
5-7
uranmaximum [27]

Answer:

the third option

Step-by-step explanation:

what does that mean ?

to "rationalize" it is to transform it into a rational number (that is a number that can be described as a/b, and is not an endless sequence of digits after the decimal point without a repeating pattern).

a square root of a not square number is irrational (not rational).

so, what this question is asking us to get rid of the square root part in the denominator (the bottom part).

for this we need to multiply to and bottom with the same expression (to keep the whole value of the quotient the same) that, when multiplied at the bottom, eliminates the square root.

what can I multiply a square root with to eliminate the square root ? the square root again - we are squaring the square root.

so, what works for 9 - sqrt(14) as factor ?

we cannot just square this as

(9- sqrt(14))² = 81 -2sqrt(14) + 14

we still have the square root included.

but remember the little trick :

(a+b)(a-b) = a² - b²

without any mixed elements.

so, we need to multiply (9-sqrt(14)) by (9+sqrt(14)) to get

81-14 = 67 which is a rational number.

therefore, the third answer option is correct.

7 0
3 years ago
Eli lives 0.7 mile from his school. He lives 0.25 mile from his friends house. Does Eli live closer to his school or his friends
Hitman42 [59]
Eli lives closer to his friends house than his school
5 0
3 years ago
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