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3 years ago

What's the answer to this problem? I know how to do it but I'm confused

Mathematics

1 answer:

blsea [12.9K]3 years ago

6 0

$- 282 - (1017) =$

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On a long-distance biking trip, annike started biking at 7 a.M., and her average speed was 11 miles per hour. Celia started at 8

gladu [14]

Answer:

3.67 hours

Step-by-step explanation:

Speed is the ratio of distance to time, it is given by the formula:

Speed = Distance / time

For annike her average speed was 11 miles per hour and she started at 7 am.

At 8 am (time = 1 hr i.e 7 am to 8 am) the distance she would have covered is given as:

11 miles/hr = distance / 1 hr

Distance = 11 miles per hr × 1 hr = 11 miles

After 8 am, the distance traveled at time t is:

11 = distance/t

distance = 11t

Total distance = 11t + 11

For Celia she started at 8 am at 14 miles per hour, at time t, the distance traveled is:

14 = distance/t

Distance = 14t

Given that both bikers traveled the same distance, hence:

14t = 11t + 11

3t = 11

t = 11/3

t = 3.67 hours

5 0

3 years ago

Gloria pays her insurance three times each year. The first payment is 50% of the annual

Xelga [282]

Answer:

First payment (50%) would be 512$

The next two payments would be 32$ each

Explanation:

.5(1024)= 512

.25(512)=128

.25(128)= 32

4 0

3 years ago

A merchant has120 litres and 180 litres of two kinds of oil. He wants to sell the oil by filling the two kinds in tins of equal

fredd [130]

Answer:

60 litres

Step-by-step explanation:

To obtain the greatest volume of the tin, we calculate the highest common factor of both 120 and 80

Factors of :

80 : 1, 2, 4, 5, 8, 10, 16, 20, 40, 80

120 : 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120

The highest common factor is 60.

Hence, the greatest volume of the tin would be 60 litres

4 0

3 years ago

(PLEASE HELP)James tosses a coin 50 times. It lands on heads 23 times and on tails 27 times.

Fudgin [204]

Answer:

Step-by-step explanation:

6 0

3 years ago

The diagonals of a rhombus are 16 cm and 12cm. find its length

igomit [66]

Answer:

l=10 cm

Step-by-step explanation:

In a rhombus, the diagonals are cut into identical lines at the intersection.

This way, I found the measures of the halves of the diagonals in a right triangle, knowing that the diagonals of the rhombus are perpendicular on each other.

I calculated that AO = AC/2= 8, and that BO=BD/2= 6, and then I applied pytagora's theorem in a quarter of the rhombus, which is the right triangle AOB, to find the length of a side

4 0

3 years ago