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3 years ago

if the income of A, B and C is in the ratio of 2:5:11 and the income of B is 291 more than A, then the income of C is?

1 answer:

Colt1911 [192]3 years ago

3 0

The information in the question let’s us solve for A using a ratio:

A / (A + 291) = 2 / 5
5A = 2A + 582
3A = 582
A = 194

Now we can use ratios again to solve for C:

11 / 2 = C / 194
2C = 2134
C = 1067

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A person drove from 8 am Tuesday to 5 pm Wednesday. Total drive 396 miles. He have lunch for 30 minutes on Tuesday and sleep ove

777dan777 [17]

Answer: 18mph

Step-by-step explanation:

Given data

total distance driven = 396 miles

time driven = 8 am Tuesday to 5 pm Wednesday

total time driven in hours = 33 hours

lunch break time = 30 min Tuesday + 30 min Wednesday

= 60 min

= 1 hour

sleep time = 7 pm Tuesday to 5 am Wednesday

= 10 hours

solution:

To find the average speed,

we are given total time driven = 33hrs.

lunch + rest time = 10hrs + 1hr

= 11hrs

total time travelled =drive time - rest + lunch time

= 33 - 11

= 22hrs

therefore;

average speed = distance / time traveled.

average speed = 396 / 22

average speed = 18 mph

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3 years ago

Divide. 83 ÷ 9 Enter your answer by filling in the boxes. __R __

forsale [732]

9R2

83/9 = 9.2222222

9*9 = 81

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3 years ago

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3 years ago

If f(x) = -2x^2 + x–5, what is f(3)?

yan [13]

Answer:

-20

Step-by-step explanation:

Replace X by 3

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3 years ago

A radio transmission tower is 170 feet tall. how long should a guy wire be if it is attached 15 feet from the top and is to make

beks73 [17]

The image of the given scenario is attached below.

A right angled triangle is formed, with one angle equal to 27 degrees. The perpendicular side is 155 and we are to find the length of guy wire which makes the hypotenuse of the right angled triangle.

Using the formula of sine, we can write:

$sin(27)= \frac{155}{x} \\ \\ 
x= \frac{155}{sin(27)} \\ \\ 
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Rounding to nearest whole number, the length of the guy wire that must be attached is 341 feet.

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3 years ago