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3 years ago

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Kelvins monthly allowance is $42 and mikes monthly allowance is $63. How many times mikes monthly allowance is kelvins monthly a

llowance

1 answer:

horrorfan [7]3 years ago

6 0

It is 1.5 times because $63 divided by $42 is $1.5.
Hope this helped!

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Luis works 45 hours and earns 10 an hour. How much money would he earn in 3 weeks.

daser333 [38]

Answer: $1,350

Step-by-step explanation:

45 hours x 10 dollars/hour = 45x10 dollars = 450 dollars/week

450 dollars/week x 3 weeks = 450x3 dollars = 1350 dollars

3 0

3 years ago

1. When you measure the length of an object to the eighth of an inch and again to the fourth of an inch, which measurement is mo

sladkih [1.3K]

Answer:

The eighth of an inch scale measures more precisely.

Step-by-step explanation:

An eighth of an inch means that one inch is divided into 8 equal lengths on the scale i.e. the minimum length that can be measured is $\frac{1}{8} =0.125$ inch.

Again a fourth of an inch means that one inch is divided into 4 equal lengths on the scale i.e. the minimum length that can be measured is $\frac{1}{4} =0.25$ inch.

Therefore, the eighth of an inch scale measures more precisely as it can measure more small measurements. (Answer)

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3 years ago

A tourist boat is used for sightseeing in a nearby river. The boat travels 2.4 miles downstream and in the same amount of time,

topjm [15]

Answer: the current of the river is 3 mph.

Step-by-step explanation:

Let x represent the current of the river.

The boat travels 2.4 miles downstream. Assuming it travelled with the current of the river. If the boat travels at an average speed of 21 miles per hour in the still water, it means that the total speed at which the boat travelled downstream is

(21 + x) mph

Time = distance/speed

Time taken to travel downstream is

2.4/(21 + x)

it travels 1.8 miles upstream. Assuming it travelled against the current of the river. it means that the total speed at which the boat travelled upstream is

(21 - x) mph

Time taken to travel upstream is

1.8/(21 - x)

Since the time taken to travel upstream and downstream is the same, then

2.4/(21 + x) = 1.8/(21 - x)

Cross multiplying, it becomes

2.4(21 - x) = 1.8(21 + x)

50.4 - 2.4x = 37.8 + 1.8x

2.4x + 1.8x = 50.4 - 37.8

4.2x = 12.6

x = 12.6/4.2

x = 3 mph

7 0

3 years ago

Read 2 more answers

In a class of 30, students play either football or basketball (or both). If 21 students play football and 24 students play only

Murljashka [212]

Answer:

6 play both

Step-by-step explanation:

30-24=6

4 0

3 years ago

Read 2 more answers

400 m running race, runner 1 is 1m wide, runner 2 is starting in front of runner 1. Determine how far ahead

Lesechka [4]

Answer:

2m ahead

Step-by-step explanation:

1×2=2m

7 0

3 years ago