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devlian [24]
3 years ago
15

9. If a car travels 65 kilometers in 25 minutes, what is its speed in miles per hour? (1.6 km = 1 mile)

Mathematics
1 answer:
Artyom0805 [142]3 years ago
3 0
There you go hope this helps

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Help please!!! Which statement best describes the function
olga55 [171]

Answer:

A.

Step-by-step explanation:

We have x in exponent, so it is an exponential function.

Exponent is negative, so is is an exponential decay.

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3 years ago
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The old time train museum is raising the price of tickets for train rides.Tickets used to cost $4.80 each. The new ticket price
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Only add $4.80 + $1.25
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Can someone help me with this math homework please!
Cerrena [4.2K]

Therefore, f(c) = 3c+5

OPTION B is the correct answer

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Which expression is equivalent to m^2-13m-30?
sergiy2304 [10]

Answer: First option

Step-by-step explanation:

You have the quadratic equation given in the problem:

m^2-13m-30

To find an equivalent expression you cacn factorize. Find two numbers whose sum is -13 and whose product is -30.

These numbers would be -15 and 2.

Therfore, you obtain the following equivalent expression:

(m-15)(m+2)

If you don't want to apply the method above, you can use the quadratic formula:

x=\frac{-b+/-\sqrt{b^2-4ac}}{2a}

Where:

a=1\\b=-13\\c=-30

When you susbstitute values you obtain that:

x=15\\x=-2

Then you can rewrite the equation as (m-15)(m+2)

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3 years ago
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Dorothy's dietary intake for one day consisted of 250 grams of carbohydrate, 60 grams of protein, and 40 grams of fat. What perc
tester [92]

Answer:

\%Percent = 17.14\%

Step-by-step explanation:

Given

Carbohydrate = 250\ g

Protein = 60\ g

Fat = 40\ g

Required

Determine the percentage of protein

First, we need to calculate the total:

Total = Carbohydrate + Protein + Fats

Total = 250\ g + 60\ g + 40\ g

Total = 350\ g

Percentage of protein is calculated as thus:

\%Percent = \frac{Protein * 100\%}{Total}

\%Percent = \frac{60 * 100\%}{350}

\%Percent = \frac{6000\%}{350}

\%Percent = 17.14\%

4 0
3 years ago
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