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3 years ago

A family is tracking its spending habits. Over the

Mathematics

1 answer:

saw5 [17]3 years ago

5 0

Answer: a) What is a good scale to use for the y axis? -20 units.

(b) What is a good interval to use for the y axis?- 20 units

Step-by-step explanation:

A family is tracking its spending habits. Over the

past year, the grocery bill has ranged from $120 to $180.

We need to plot these points on a coordinate grid.

If we plot the grocery bills along the y-axis, and past years will be plotted along the x-axis.

So, a) Good scale to use for the y-axis will be

1 scale = 20 units

As 120 and 180 are both divisible by 20.

So, it will be a good scale to use for the y-axis.

b) Good interval to use for the y-axis:

It will be again of 20 units.

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-Dominant- [34]

Whats the question? It doesn't make since

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3 years ago

At 8:30 A.M.., Briana started filling a 2,800-gallon pond. At 10:30 A.M., she had filled 1,400 gallons. At what time will the po

Sati [7]

Answer:

12:30 pm

Step-by-step explanation:

8:30 am pond is empty

10:30 am pound is 1,400 gallons full

time? pound is 2,800 gallons full

from 8:30 to 10:30 are 2 hours so the rate of filling up is

1,400 gallons in 2 hours

to have a whole pond filled we need another 2 hours because

in another 2 hours will have another 1,400 gallons so a pound full. 8:30 am + 2hours = 12:30 pm

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3 0

3 years ago

Please help and for number 2

prohojiy [21]

Area = 1/2 x B x H
1/2 x 28.3 x 12.8 = 181.12

Answer is #3

7 0

4 years ago

A race track is made from two straights and two semicircles. The straights are 80m long. The race track has a total perimeter of

Dmitriy789 [7]

Answer:

76.4 m

Step-by-step explanation:

The race track has two straights and two semi circles.

Each straight is 80m

total perimeter for the straights is 80 * 2 = 160m

two semi circles which creates a full circle

perimeter of a full circle = $\pi$ d

NB : (d) is the diameter

therefore we can find the value of the diameter

400 = 160 + $\pi$ d

400- 160 = $\pi$ d

240 = $\pi$ d

d = 240/ $\pi$

d = 76.394.....

<u>d = 76.4 m</u>

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3 years ago

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hichkok12 [17]

Answer:

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3 years ago