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padilas [110]
3 years ago
8

Suppose chocolate is on sale for $0.40 a bar and you have a coupon for $0.20 off your total

Mathematics
1 answer:
Ganezh [65]3 years ago
4 0

Answer:

$7.80

Step-by-step explanation:

.40C-.20=T

C=# of chocolate bars

.20 is the coupon

C=20

.40*20-.20=Total

8-.20=Total

$7.80

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Factor each linear expression.if expression can not be factored write cannot be factored.<br> 36x-9
almond37 [142]

Answer:

9(4x - 1)

Step-by-step explanation:

The given linear expression is:

36x - 9

Since, 36 can be written as 9 times 4, we can rewrite the above expression as:

9(4x) - 9

Taking 9 as common, the expression changes to:

9 (4x - 1)

This linear expression can no linger be factorized further.

So,

36x - 9 = 9(4x - 1)

Brainliest for my virtuoso answer

7 0
3 years ago
What is the multiplicative rate of change of the function shown on the graph? Express your answer in decimal form. Round to the
allsm [11]
In linear models there is a constant additve rate of change. For example, in the equation y = mx + b, m is the constanta additivie rate of change.


In exponential models there is a constant multiplicative rate of change.


The function of the graph seems of the exponential type, so we can expect a constant multiplicative exponential rate.


We can test that using several pair of points.


The multiplicative rate of change is calcualted in this way:

 [f(a) / f(b) ] / (a - b)

Use the points given in the graph: (2, 12.5) , (1, 5) , (0, 2) , (-1, 0.8)

[12.5 / 5] / (2 - 1) = 2.5


[5 / 2] / (1 - 0) = 2.5


[2 / 0.8] / (0 - (-1) ) = 2.5


Then, do doubt, the answer is 2.5





6 0
3 years ago
Read 2 more answers
What is the equation of the line that passes through the points (-9,-6) and (-9, -8)?​
andrey2020 [161]

Answer:

x=-9

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(-8-(-6))/(-9-(-9))

m=(-8+6)/(-9+9)

m=-2/0

undefined

x=-9

7 0
3 years ago
Explain how to solve the equation 3/4x +5=11
ra1l [238]

Answer:

x=8

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Solve for x.<br><br> 7 - (2x + 11) + 3(3 - x) = 20
zvonat [6]

Answer:

your answer should be x = -3

7 0
2 years ago
Read 2 more answers
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