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3 years ago

15

The price of candy bars can be determined by the equation P=1.50n, where P is the price and n is the number of candy bars. What

is the constant of proportionality (unit rate)?

1 answer:

Agata [3.3K]3 years ago

6 0

Answer:

$1.50/bar

Step-by-step explanation:

The constant of proportionality is $1.50/bar: each bar costs $1.50.

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Simplify the product using the distributive property. (-4h +2)(3h +7)

Alekssandra [29.7K]

Answer:

A. -12h² - 22h + 14

Step-by-step explanation:

(-4h +2)(3h +7) = -4h(3h +7) +2(3h +7) . . . . . . . (a +b)c = ac +bc

= (-4h)(3h) + (-4h)(7) + (2)(3h) + (2)(7) . . . . . . . a(b +c) = ab +ac . . . (twice)

= -12h² -28h +6h +14

= -12h² -22h +14 . . . . . . . . collect terms

3 0

4 years ago

Is the ordered pair (2,1) the solution the the equation y=1-x

AleksAgata [21]

(x,y)
(2,1)
sub 2 for x and 1 for y and see if you get a true statemtn

2=x
y=1
1=1-2
1=-1
false
no it is not a soluiton

4 0

3 years ago

This table models a linear function. x −8 −4 4 8 y −3 0 6 9 Enter the coordinates of the y-intercept in the boxes.

adell [148]

Answer:

y-intercept is 3

Step-by-step explanation:

We are given table

x: -8 -4 4 8

y: -3 0 6 9

We can select any two points

$x_1=-8,y_1=-3$

$x_2=-4,y_2=0$

Firstly, we will find slope

$m=\frac{y_2-y_1}{x_2-x_1}$

now, we can plug values

$m=\frac{0+3}{-4+8}$

$m=\frac{3}{4}\quad$

now, we can use point slope form of line

$y-y_1=m(x-x_1)$

we can plug values

$y+3=\frac{3}{4}(x+8)$

now, we can solve for y

$y=\frac{3}{4}x+3$

For finding y-intercept , we can plug x=0

$y=\frac{3}{4}\times 0+3$

$y=0+3$

$y=3$

So,

y-intercept is 3

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4 years ago

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96 is the result 200 x .48

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3 years ago

Linear function passes through the points (2, 9) and (7, 34). What is the rate of change?

Anastaziya [24]

Answer:

5

Step-by-step explanation:

8 0

4 years ago