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3 years ago

Lisa walks at a speed of 3 25 miles per hour for 1 5 hours How many miles does she walk in all?

Mathematics

2 answers:

Blababa [14]3 years ago

7 0

Answer:

I think it might be 21.6 or just 21

Nookie1986 [14]3 years ago

5 0

Answer:

For 1.5 hours of walking, she will walk a total of 4.875 miles.

Step-by-step explanation:

You multiply how long she was walking for by how many miles she can walk per hour, to find the total answer of how many miles she will walk.

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The marks scored by a group of students in English examination are as follows: 30,32, 33, 31, 32, 33, 34, 35, 33, 34 . Find the

Alecsey [184]

Answer:

Answer is 32

Step-by-step explanation:

Mode = no of stu +1/2

Mode =12+1/2

Mode =13/28=6.5

Mode =6th mark +7th mark /2

Mode=32+32/2

Mode=64/2

Mode=32

Hope it helps

Peace

Please mark me as brainliest

8 0

3 years ago

Kelly needs 2 skeins of yarn for her knitting projects. A skein of yarn is usually $9, but Casey looks for sales. Which of the f

MAXImum [283]

Answer:B the cost would be $11

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

HELP ASAP!! A recipe calls for 2.3 cup of milk. if you make 3 1/2 times the recipe, how much milk do you need?

LiRa [457]

The question is basically asking what 3.5 x 2.3 is. So the answer would be 8.05. If you read carefully it even tells you “times” I. The question. Hope this helps!!

3 0

3 years ago

If there are 360 grams of radioactive material with a half-life of 8 hours, how much of the radioactive material will be left af

lyudmila [28]

Answer:

There will be 22.5 grams left after 32 hours.

Step-by-step explanation:

A half-life is how long it takes for half of the amount to go away. In this case, we see that we have two half-life periods worth, which you can determine by dividing the total time by the half-life time.

32hrs/8hrs = 4 half lives.

Now we can raise 1/2 to the power of how many half lives we have (2). Then we multiply that by the amount in the sample.

(1/2)^4 * 360

1/16 * 360

22.5 grams

And this is an exponential function.

4 0

3 years ago

Read 2 more answers

The Dallas Development Corporation is considering the purchase of an apartment project for $100,000. They estimate that they wil

katovenus [111]

Answer:

The rate of return is 8.15%

This is a good investment

Explanation:

For the first question, you need to find the rate that makes the present value of a stream of ten constant annual payments of $15,000 equal to the $100,000 investment.

The formula that returns the present value of a constant payment is called the annuity formula and is:

$Present\text{ }value=payment\times \bigg[\dfrac{1}{r}-\dfrac{1}{r(1+r)^t}\bigg]$

In your problem you know:

Present value: $100,000
payment: $15,000
r: ?
t: 10

You cannot solve for r directly. You must guess a value and calculate the right side of the equation until to you find the rate that makes it equal to 100,000.

Try 5%:

$\$15,000\times \bigg[\dfrac{1}{0.05}-\dfrac{1}{0.05(1+0.05)^{10}}\bigg]=\$115,826$

Then, the rate of return is greater than 5%. After several trials you will find that the rate of return is 8.15%.

Since this rate is higher than 8%, which is what the company requires, this is a good investment.

5 0

3 years ago