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Daniel [21]
3 years ago
13

Jim ran 12 1/2 miles in 2 1/2 hours. How many hours for 1 mile?

Mathematics
1 answer:
Klio2033 [76]3 years ago
4 0

Answer:

1/5 hours i.e 0.2 hours (which is 12 mins)

Step-by-step explanation:

First note that 12 1/2 = 12.5, and 2 1/2 = 2.5.

To work out how many hours it takes hime to drive one mile, we divide the number of hours (2.5) by the number of miles (12.5),

i.e 2.5 ÷ 12.5

which equals 1/5 = 0.2 hours (= 12 mins).

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What's the slope of this line? Enter the answer as a fraction in simplest term in the box.
Snowcat [4.5K]

Answer:

the answer is -1

Step-by-step explanation:

-1/-1 is the fraction lol

3 0
3 years ago
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Which of the following symbol make(s) the following mathematical statement true?
Arturiano [62]
3 > 1
(4^0 is one)
3 is greater than 4^0
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3 years ago
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In the isosceles triangle, find a and b if you knew the perimeter was 20x+35
Zanzabum

Answer:

a=8

b=17

Step-by-step explanation:

Isoceles means we will have 2 congruent sides in this triangle.

So it appears we are to assume it is sitting on its base which means that other side has measurement ax+9 as well

So we have the sum of the 3 sides is the perimeter.

That means we have the equation:

(ax+9)+(ax+9)+(4x+b)=20x+35

Combine like terms:

(a+a+4)x+(9+9+b)=20x+35

(2a+4)x+(18+b)=20x+35

This implies 2a+4=20 and 18+b=35.

2a+4=20

Subtract 4 on both sides:

2a=16

Divide both sides by 2:

a=8

18+b=35

Subtract 18 on both sides:

b=17

So a=8 and b=17.

3 0
3 years ago
What is three more than the product of a number and 7 equals 8 . use the variable x for the unknown number?
Anastaziya [24]
(7x) + 3 = 8
subtract both sides by 3.

7x = 5
divide both sides by 7 to isolate the variable, x.

x = 5/7
7 0
3 years ago
The lengths of the sides of a triangle are 4,5 and 6 if the length of the longest side of a similar triangle is 15,what is the l
prisoha [69]

Answer:

The length of the shortest side of the triangle is 10.

Step-by-step explanation:

Given that the lengths of the sides of a triangle are 4, 5 and 6, if the length of the longest side of a similar triangle is 15, to determine what is the length of the shortest side of the triangle, the following calculation must be performed :

6 = 15

4 = X

4 x 15/6 = X

10 = X

Therefore, the length of the shortest side of the triangle is 10.

8 0
3 years ago
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