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3 years ago

PLEASE HELP ASAP! I WILL GIVE BRAINLIEST!

Mathematics

2 answers:

olga_2 [115]3 years ago

6 0

In 75 minutes you travelled 30 kilometers, so the rate is 30/75=0.4km/minute

another way is to use the two points to find the slope: m=(30-0)/(75-0)=0.4

lisov135 [29]3 years ago

4 0

Answer:

Option B is correct.

Unit rate = 0.40 km/min

Step-by-step explanation:

Given : A graph with a line running through coordinates (0,0) and coordinates (75, 30).

Here, y represents the distance traveled in km and x represents the number of minutes.

Find the slope of the line:

Slope(m)= $\frac{change in y-axis}{change in x-axis}$ = $\frac{y_2-y_1}{x_2-x_1}$

Given points: (0, 0) and (75, 30)

then;

$m = \frac{30-0}{75-0} = \frac{30}{75} =0.40 km/min$

Since, unit rate is also the slope of the graph.

Therefore, unit rate(in km/min) = 0.40 km/min

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2 years ago

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ladessa [460]

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3 years ago

Use the method of cylindrical shells to find the volume V generated by rotating the region bounded by the given curves about the

insens350 [35]

Answer:

So, the volume V is

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We have that:

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3 years ago

Bob and mark talk about their families. Bob says he has 3 kids, the product of their ages is 72. He gives another clue: the sum

pychu [463]

I can only give possible combination of the ages. Had the sum of the ages been given, then the 3 specific numbers would have been derived.

We need to do prime factorization of 72.

72 ÷ 2 = 36
36 ÷ 2= 18
18 ÷ 2 = 9
9 ÷ 3 = 3
3 ÷ 1 = 1

1 x 2 x 2 x 2 x 3 x 3 = 72

Possible combinations:

1 x 8 x 9 = 72 1 + 8 + 9 = 18
1 x 4 x 18 = 72 1 + 4 + 18 = 23
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3 x 4 x 6 = 72 3 + 4 + 6 = 13

3 0

2 years ago

Which one has the same solution

4vir4ik [10]

0.42z = 2.52
z = 2.52 / 0.42
z = 6

same as

z + 7.45 = 13.45
z = 13.45 - 7.45
z = 6
answer is top right z + 7.45 = 13.45

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3 years ago