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ZanzabumX [31]
3 years ago
5

There were 80 runners to start a race in the first half of the race, 1/5 of them dropped out. In the second half of the race, 1/

4 of the remaining runners dropped out. How many runners finished the race
Mathematics
1 answer:
charle [14.2K]3 years ago
8 0

Answer:

4

Step-by-step explanation:

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Max put 38,250 miles on his car during the three years that he owned it. At this rate, how many miles would be on his car after
saveliy_v [14]

Answer:

89,250 miles

Step-by-step explanation:

you divide 38,250 by 3 to get how many miles he drove a year, then multiply it by 7 for the seven years and you get 89,250 miles in 7 years.

5 0
3 years ago
O is the centre of the circle, EF is a tangent, angle BCE=28 degrees, angle ACD=31 degrees.
Yuki888 [10]

Answer:

a. 28˚

b. 76˚

c. 104˚

d. 56˚

Step-by-step explanation

a. because angle between tangent and chord is equal to the angle(s) in alternate segment.

b. because angles in triangles add up to 180˚, 180-28=152 and because isosceles triangle, 152/2=76˚

c. because angles in triangles add up to 180˚ and opposite angles in a cyclic quadrilateral add up to 180˚, 31+76=107, 180-107=73, 73-28=45, angles in triangle so 180-(31+45)=104˚

d. 28*2=56˚ because angles at circumference are half angles at centre

4 0
3 years ago
20x4=10 <br> 30x13=12<br> 10x12=3<br> 40x11=
PIT_PIT [208]

Answer:

440

Step-by-step explanation:

7 0
3 years ago
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Andrew [12]

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Step-by-step explanation:

5 0
3 years ago
The sum of the measures of two complementary angles is 90degrees. If one angle measures 30degrees more than 3 times the measure
sashaice [31]

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Step-by-step explanation:

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