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makkiz [27]
3 years ago
13

If lisa can run a mile in 7 minutes. At that rate of speed, how long would it take her to run 2 kilometers?

Mathematics
1 answer:
murzikaleks [220]3 years ago
5 0

Answer:

8.75

Step-by-step explanation:

1 mile = 1.6 km

So, every 7 minutes, 1.6 km is ran.

Divide 1.6 by 2 to figure out how much more she is running.

1.6 / 2 = 0.8

Divide the known pace by the extra distance to figure out the time

7 min / 0.8 km = 8.75 min

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Solve for x <br> Need help asap
vlabodo [156]

Answer:

x=55

Step-by-step explanation:

Corresponding angles of two parallel lines are always equal. The angle on "top" of 2x+6 corresponds with the angle marked as x+9. Therefore, its measure must also be x+9.

Since these two angles form one side of a line which has 180 degrees, we have the following equation:

2x+6+x+9=180

Combine like terms:

3x+15=180

Subtract 15 from both sides:

3x=165

Divide both sides by 3:

x=\frac{165}{3}=\boxed{55}

3 0
3 years ago
Find JMK, JKH, HLK, HJL, LHK, JLK
nordsb [41]

Answer:

126

Step-by-step explanation:

A line is 180 degrees. I found the degree of the angles in-between 126 and M by subtracting 126 from 180. This means that M is also 126. (Plus the intersecting lines are parallel)

8 0
3 years ago
Can u please show me the work to 67,473 divided by 32
puteri [66]
This is the answer to 67,473 divided by 32. I hoped this helped. I used colors to hopefully help you more.

5 0
3 years ago
How would you also do this??
Vesna [10]

4(5x + 7) = 128

First, I'd do distributive property and get:

20x + 28 = 128

Then, subtract 28 from each side.

20x = 100

Next, I'd divide 100 by 20 = 5

x = 5

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5 * 5 = 25

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4 * 32 = 128

Therefore, the perimeter = 2l + 2w

l = 4

w = 5x + 7

BUT we know that x = 5

w = 5(5) + 7 = 32

2(4) + 2(32)

8 + 64 = 72

Therefore, the perimeter would be 72 inches.

5 0
3 years ago
X²+8x-16 by factorising method<br><br><br> what is the ans pls I need it fast ASAP​
ch4aika [34]

Answer:

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Step-by-step explanation:

hope this helps:)

8 0
2 years ago
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