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Mathematics

1 answer:

tester [92]3 years ago

7 0

Answer:

math : 10

reading :17

so 27

Step-by-step explanation:

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1.The value of 8 dimes is

son4ous [18]

The answer to the quest is 8.09

4 0

3 years ago

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This graph shows the tempature in Diego’s between moon and midnight one day. Choose ALL of the statements that are true.

tia_tia [17]

All of them are right

6 0

4 years ago

Is this correct? I need the answer quickly too lol thanks <33

ch4aika [34]

Answer:

It is right

Step-by-step explanation:

6 0

3 years ago

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a boat makes a 120-mile trip downstream in 3 hours but makes the return trip in 4 hours. what is the rate of the boat in still w

Tpy6a [65]

Let b equal the speed of the boat in still water.
Let c equal the speed of the current.
Going downstream, we can write the equation:
$b+c=\frac{120}{3}$
which can be rearranged to:
3b + 3c = 120 ............(1)
Going upstream, we can write the equation:
$b-c=\frac{120}{4}$
which can be rearranged to:
4b - 4c = 120 .............(2)
Multiplying equation (1) by 4, and multiplying equation (2) by 3 we get:
12b + 12c = 480 ........(3)
12b - 12c = 360 .........(4)
Adding equations (3) and (4) results in the following equation:
24b = 840
$b=\frac{840}{24}=35\ mph$

7 0

4 years ago

there are 225 wolves in a state park the population is increasing at the rate of 15% per year you want to make a prediction for

erastova [34]

Well, here is how i would do it.

We start with 225, at a rate of 15% per year. Assuming your answers are in years and not months, we will increase by this increment; years.

So, we start with 225, and a 15%, or .15, increase. So what we would do, it take 225 times .15. One way ive learned to do this (via algebra class) is that you can times it by 1.15 to make it quicker, this just takes out the adding step.

So after one year, we would have a total of 258.75, or about 259 wolves.

after two years, we would have about 298 (we cant have a half of a wolf!)

after 3 years, we would have about 343 wolves.

after 4 years, we would have about 394 ish

after 5 years, we would have about 453

after 6 years, we would have about 521.

So, it would take about 5 and a half years, if thats an option choice.

6 0

4 years ago