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Sonbull [250]
3 years ago
8

How do I solve this?

Mathematics
1 answer:
Vladimir79 [104]3 years ago
8 0

Step-by-step explanation:

Substitute the value x for any number, for example x=1, you substitute x for the value 1, so this is the final equation: y= -3(1)+5 and the answer you get is the value of y. Continue substituting x for any value in the graph of course and then write the answer for y which is the number you get by solving the equation. Then plot the graph with the points you got. Hope this helps, let me know if you need more help :)

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Help needed with all pls
Olenka [21]
#5 is 5 days
40×5=200
200+150=250

20×5=100
100+150=250
3 0
3 years ago
Write an equation for the description.
cricket20 [7]
I think it would be “ 130 + m = 170 “ I could be wrong tho
6 0
3 years ago
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Y is inversely proportional to x when y=9, x=24
Lisa [10]

Answer:

216

Step-by-step explanation:

y=k÷x

k=xy

k=9×24

k=216

7 0
3 years ago
Calculate the percentage change (increase or decease) that occurs when:
SashulF [63]

The first step is to find the CHANGE. This is done by subtracting the two values and taking the absolute value. Next step is to find the ratio of the change to the original and multiplying by 100% to make it a percentage.

So;

a)  change = Ι60 - 25Ι = 35.

     ratio of change to original = 35:25,

    multiplying by 100% will give 35/25 × 100% = 140%.

    Hence it is a 140% INCREASE.

b) change = | 30 - 66 | = 36

    the ratio is 36:66

multiplying by 100% = 36/66 × 100% = 0.545454... ×100% ≈ 54.5%

   Hence it is a 54.5% DECREASE.


Helpful?

     



4 0
3 years ago
Sara bought 4 pounds
Roman55 [17]

Answer:

$12.80

Step-by-step explanation:

Sara bought 4 pounds of coffee.

Each pound (lb) costs $3.20

To find the total cost, multiply the cost per pound ($3.20) with the amount of pounds Sara is going to buy (4):

4 x 3.20 = $12.80

$12.80 would be the total cost before tax.

~

3 0
3 years ago
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