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nadya68 [22]
2 years ago
13

If f(x) = 5x + 40, what is f(x) when x = -5? 0-8 0.7 O 15

Mathematics
1 answer:
Over [174]2 years ago
4 0

Answer:

15

Step-by-step explanation:

f(x) = 5x + 40

…………………………

when x = -5

f(-5) = 5(-5) + 40

      = -25 + 40

      = 40 - 25

      = 15

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Answer:10.25-r= hourly rate

Step-by-step explanation:

4 0
3 years ago
Yao Xin puts \dfrac{3}{10} 10 3 ? start fraction, 3, divided by, 10, end fraction liters of potting soil in each pot for plantin
slega [8]

Answer:

<em>She can fill 19 pots.</em>

Step-by-step explanation:

Yao Xin puts \frac{3}{10} liters of potting soil in each pot.

Suppose, the number of pots Yao Xin can fill is x

So, <u>the total amount of potting soil</u> in x number of pots will be:  \frac{3}{10}x liters.

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\frac{3}{10}x= \frac{17}{3} \\ \\ x=\frac{17}{3}* \frac{10}{3}= \frac{170}{9}=18\frac{8}{9}

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4 0
3 years ago
Read 2 more answers
What process do you use to find the percent change of a quantity?
Sever21 [200]
<span><u><em>First, we need to get the amount of change:</em></u>
The amount of change can either be an increase or a decrease.
It can be calculated as follows:
amount of change = </span>\frac{"new"value - "old"value}{"old" value}
<span>
If the amount of change is positive, then it is an increase
If the amount of change is negative, then it is a decrease

<u><em>Then, we need to convert this amount into a percentage:</em></u>
Changing the amount into a percentage can simply be done by multiplying this amount by 100
This means that:
% of change = amount of change * 100

<u><em>Combining the two steps:</em></u>
% of change = </span>\frac{"new"value - "old"value}{"old" value}<span> * 100

<u>Examples:</u>
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% of change = </span>\frac{12-10}{10} * 100<span> = 20%
This means that the price increased by 20%

The temperature decreased from 25 degrees to 20 degrees. Find the percentage of decrease.
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This means that the temperature decreased by 20%

Hope this helps :)</span>
7 0
3 years ago
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Which fraction is between 1/2 and 2/2
Afina-wow [57]
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3 years ago
What is the exterior angle sum for a regular heptagon
Makovka662 [10]

Answer:

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Step-by-step explanation:

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3 years ago
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