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IRISSAK [1]
3 years ago
7

Evaluate the expression when x = 3.6) 21-X​

Mathematics
1 answer:
vovikov84 [41]3 years ago
3 0

Answer: 18

Step-by-step explanation: You would substitute x for 3 in the expression. This would equal 21-3, or 18 when simplified

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Write the coordinate pair (x,y) for each of the following
frez [133]
A. (3,5) B. (-4,-3) C. (-4,4) D. (5,-3) E. (6,7) F. (-8,-8) G. (-2,7) H. (-2,-4) I. (3,-9) J. (1,0)
7 0
2 years ago
Which of the following points are in the fourth quadrant of the xy-plane? Check all that apply.
Margaret [11]

Answer:

B and F

Step-by-step explanation:

The fourth quadrant contains a positive number for the x axis and a negative number for the y axis. (B=4,-5 and F=4,-7)

8 0
3 years ago
Aron charges an initial service fee of 10$ plus 15$ per hour , what is X?
Marysya12 [62]

Answer:

The linear function becomes:

y = 15x + 10

Here, 'x' is the number of hours, b=10 is the initial service fee i.e. $10, 15 is slope or rate of change, and 'y' is the cost.

Step-by-step explanation:

We know that the slope-intercept of a linear function is

y = mx+b

where m is the slope and b is the y-intercept

Note: Slope is also termed as the 'rate of change'.

Given that Aron charges an initial service fee of 10$.

Thus, the y-intercept = b = 10

As the rate of change = 15$ per hour

so the slope = m = 15

Therefore, the linear function becomes:

y = mx+b

y = 15x + 10

Here, 'x' is the number of hours, b=10 is the initial service fee i.e. $10, 15 is slope or rate of change, and 'y' is the cost.

For example, in one hour i.e. x = 1, the cost 'y' will be:

y = 15x + 10

y = 15(1) + 10

y = 25 + 10

y = $25

Therefore, in one hour (x=1), the cost will be: y = $25

7 0
3 years ago
6x-y in a verbal expression
Zolol [24]

Answer:

six x minus y.

Step-by-step explanation:

In changing it to verbal expression, you are essentially changing all the signs into words. Write it like how you will say it.

~

8 0
3 years ago
12x+24 is equivalent to 4(3x+6) because...
ANEK [815]

Answer:

you use disputation

Step-by-step explanation:

4 times 3x = 12x

4 times 6 = 24

4 0
3 years ago
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