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3 years ago

Eric records a measurement in cubic inches. For which type of problem would this measurement be appropriate?

Mathematics

1 answer:

Sveta_85 [38]3 years ago

8 0

Answer: c

Step-by-step explanation:

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PLEASE HELP! ALSO EXPLAIN IM NOT UNDERSTANDING (Please explain 5-7)

NikAS [45]

Number 6 is b and number 5 is a and number 7 is c

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4 years ago

A certain ferry moves up and down a river between Town A and B. It takes the ferry two hours to travel to Town A and only an hou

Y_Kistochka [10]

Answer:

The distance between two cities is 60 miles.

Step-by-step explanation:

Time taken to travel from B to A = 2 hours

Time taken to travel from A to B = 1.5 hours

Current speed = 5 mph

Let the speed of ferry in still water = u mph

When the ferry moves with the current, it will taken lesser time (i.e. A to B) and when it moves against the current it will take more time (i.e. B to A).

Let the distance between the two cities A and B = D miles

While moving with the current, speed = $(u+5)\ mph$

While moving against the current, speed = $(u-5)\ mph$

Formula for Distance = Speed $\times$ Time

Distance traveled in each case is same i.e. D.

So,

$D = (u+5) \times 1.5 = (u-5) \times 2\\\Rightarrow 1.5u+7.5=2u-10\\\Rightarrow 0.5u =17.5\\\Rightarrow u = \dfrac{175}{5}\\\Rightarrow u = 35 \ mph$

Now,

$D = (u+5) \times 1.5\\\Rightarrow D =(35+5) \times 1.5\\\Rightarrow D =(40) \times 1.5\\\Rightarrow \bold{D =60\ miles}$

So, the distance between two cities is 60 miles.

6 0

3 years ago

Many times does 5 go into 125

Thepotemich [5.8K]

Answer: 25

Step-by-step explanation:

5 x 25= 125

6 0

3 years ago

Read 2 more answers

A washing machine uses 40 gallons of water to wash 5 loads of laundry. The amount of water used varies directly with the number

Ne4ueva [31]

Divide 40 by 5 to give you your gallons per load. Then multiply this result by 12 to get how many gallons you would use.
Mathematically:
40gal/5loads = 8gal/load
12loads x 8gal/load = 96gal

4 0

3 years ago

Feng is saving money each week. Feng's savings are represented by the graph below. Find the rate of change.

Dmitry [639]

Answer:

I can't see the graph but to find the rate of change find the change in y over the change in x. So the difference between two y-coordinates, and the difference between two x-coordinates. It's also the same as finding the slope of the line.

4 0

3 years ago