MATHEMATICS MIDDLE SCHOOL

F(x)=2x and g(x)=2x+3,what is the value of f(g(-8))

Answers

Answer 1

Answer:

Answer:

f(g(-8)) = -26

Step-by-step explanation:

Given:

f(x)=2x and g(x)=2x+3

Required:

f(g(-8))=?

Solution:

First we will find g(-8)

g(x) = 2x+3

g(-8)= 2(-8)+3

= -16 + 3

= -13.

so, g(-8) = -13

Now, for calculation f(g(-8)) we can put the value of g(-8) i.e, -13

so, f(x) = 2x

f(-13) = 2(-13)

= -26

so, f(-13) = -26

and f(g(-8)) = -26

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Solve x+1>10, x+11>20, and x+21>30

Answers

x+1>10
x>10-1
x>9

x+11>20
x>20-11
x>9

x+21>30
x>30-21
x>9

$\framebox[1.1\width]{Godspeed!} \par$

$a) \n x+1>10 \n x>10-1 \n x>9 \n \n \n b) \n x+11>20 \n x>20-11 \n x>9 \n \n \n c) \n x+21>30 \n x>30-21 \n x>9 \n \n \n \framebox[1.1\width]{Good Luck !} \par$

Ahmed fills 6 pitchers with juice. Each pitcher contains 2 quart 1 pint. How many pints of juice does he have?

Answers

he has 30 pints because there is 2 pints in one quart so there is 5 pints per pitcher. 5 x 6 = 30

6 pitchers.

1 pitcher = 2 quart and 1pint.

6 pitchers = 6*(2 quart + 1 pint)

   = 6*2 quarts + 6*1 pint

   = 12 quarts + 6 pints.

Note: 1 quart = 2 pints.

   12 quarts + 6 pints = 12*2 pints + 6 pints

   24 pints + 6 pints = 30 pints

30 pints of juice.

A DJ has a total of 1075 dance, rock, and country songs on her system. The dance selection is three times the size of the rock selection. The country selection has 105 more songs than the rock selection. How many songs on the system are dance? Rock? Country? Please help! This has to do with substituting linear equations.

Answers

$D+R+C=1075\nD=3R\nC=R+105\n\n(3R)+R+(R+105)=1075\n5R=970\nR=194\n\nD=3(194)=\nD=582\n\nC=(196)+105=\nC=301$

582 dance songs.
194 rock songs.
301 country songs.

Answersub to me melodwybae

Step-by-step explanation:

Rounding to the nearest Tenth? 0.496

Answers

0.496 to the nearest tenth Is 0.5

All you have to is to take 1 from the number that's come after the one that near to the . and you will get the answer

Hint : Before rounding make sure the number that's come after the comma is bigger or equal to 5

I hope that's help:)

When you round to the nearest tenth, it is 0.5

What is the answer to -x = 12

Answers

the value of x is x=1/12'

HOPE IT HELPS U.

the answer is x = -12

Suppose it took 19 riders a total of 11 days 21 hours to ride from St. Joseph to Sacramento. If they all rode the same number of hours, how many hours did each rider ride?

Answers

Answer:

The number of hours each riders ride = 15 hours.

Step-by-step explanation:

19 riders = 11 days 21 hours to ride from St.Joseph to Sacramento

Let's find the number of hours taken.

1 day = 24 hours.

11 days = 11 times 24 = 264 hours

So, 11 days 21 hours = 264 + 21 = 285 hours

19 riders rode the same number of hours.

To find the each rider ride, we need to divide 285 by 19.

The number of hours each rider ride = $(285)/(19) = 15$ hours.

I’m not sure if I’m right but I tried.First I multiplied 11 times 24,because there's 24 hours in a day,then I got 264. So then I added 21 hours more to it, so then I got 285.So then I divided 285 out of 19,since there is 19 riders, and I got 15. So 15 might be the answer to the problem. (But I’m still not sure, atleast I tried right?)

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