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SpyIntel [72]
3 years ago
15

PLEASEEE HELP ASAP! *grade 9 work* and show your work!!

Mathematics
1 answer:
lidiya [134]3 years ago
5 0

Answer:

at 0  the amount is 5

1 is 7.5

2 is 10

3 is 12.5

the initial value is the y intercept when the value ox x=0

the initial value is 5

the rate of change is the total change of a function of the out put (y) divided by the change of the input (x)

f(x2)-f(x1)/x2-x1

10-7.5/2-1

2.5/1=2.5

or m=y2-y1/x2/x1=10-7.5/2-1=2.5

y=2.5x+5

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The ratio of blue to red chairs in mrs Vick’s class is 2:5 what is the total number of chairs in her class
vodka [1.7K]

Answer:

7

Step-by-step explanation:

If there are 2 blue chairs and 5 red chairs there are 7 chairs total.

6 0
3 years ago
I have a roof that measures 175 ft by 45 ft. During the hurricane 11 inches of rain fell.
Nikolay [14]

Answer:

  4.1 billion

Step-by-step explanation:

1 ft = 30.48 cm

1 in = 2.54 cm

The volume of rain that fell on the roof is given by ...

  V = LWH

  V = (175 ft × 30.48 cm/ft)(45 ft × 30.48 cm/ft)(11 in × 2.54 cm/in)

  = 175×45×11×30.48²×2.54 cm³ = 204,412,236.336 cm³

At 20 drops per cm³, this will be ...

  20×204,412,236.336 ≈ 4,088,244,727 . . . . raindrops

About 4.1 billion raindrops fell on your roof.

5 0
3 years ago
What is the area of the parallelogram?
Inessa [10]

Answer:

  • 70 cm²

Step-by-step explanation:

The area of the parallelogram is:

14 × 5

= 70 cm²

Hope it helps!

4 0
3 years ago
I need help! Please.
bekas [8.4K]

Answer: For the first one its Glenda, The second one is Shasta and the third is felix and the last one on this is preston

Step-by-step explanation: Hope this helps have a good day

8 0
3 years ago
Answer it all please
andre [41]
180 * 365 = 65700 litres/year
65700 / 1000 = 65.7 m^3/year
0.9122 * 65.7 = £59.932 for water used
28.20 + 59.93 = £88.13 for water meter annually

£88.13 < £107 so yes, he should have a water meter.
8 0
3 years ago
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