2 years ago

Let f(r) = 42 - 5, find f(3).

Mathematics

1 answer:

liberstina [14]2 years ago

5 0

F (x) = 4x - 5
F (3) just means substituting x with 3
For further please ask in question

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An employee worked 36 hours last week. This week, she worked 48 hours. Find the percent increase. Round to the nearest percent.

ioda

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There was a 25% increase.

Step-by-step explanation:

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3 years ago

7.5 x 7.5 x (6.084−5.44)

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3 years ago

Jerome is painting a rectangular toolbox that is 20 inches by 10 inches by 8 inches. A tube of paint covers 300 square inches. W

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880 in³

Step-by-step explanation:

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3 years ago

X + y = 152,<br><br> 8.5x + 12y = 1,656<br><br> How many hats were sold?

Elodia [21]

Answer:

x = 48 and y = 104

Step-by-step explanation:

Given equations are:

$x+y = 152\\8.5x+12y=1656$

From equation 1:

$x = 152-y$

Putting the value of y in equation 2

$8.5(152-y)+12y = 1656\\1292-8.5y+12y = 1656\\3.5y+1292 = 1656\\3.5y = 1656-1292\\3.5y = 364\\\frac{3.5y}{3.5} = \frac{364}{3.5}\\y = 104$

Now we have to put the value of y in one of the equation to find the value of x

Putting y = 104 in the first equation

$x+y = 152\\x+ 104 = 152\\x = 152-104\\x = 48$

Hence,

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6 0

3 years ago

10 x 200 is how many tens

melisa1 [442]

10 x 200 is 2000
therefore there are 200 tens .

7 0

3 years ago

Read 2 more answers