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VladimirAG [237]
3 years ago
9

John ran the​ 100-m dash with a time of 9.96 sec. If this pace could be maintained for an entire 26-mi ​marathon, what would his

time​ be?
Mathematics
1 answer:
soldi70 [24.7K]3 years ago
3 0
We know that 
1 mile----------------> 1609.34 meters
26 miles---------------> X
X=26*1609.34=41842.84 m

I apply a rule of three to know the time

if 100 m---------------9.96 sec
41842.84 m----------> x
x=41842.84*9.96/100=4167.5468 sec

to get minutes I divide it by 60---------> 4167.5468/60=69.459113 minutes

to get hours I divide it by 60----------> 69.459113/60=1.1576518 hours

1.1576518= 1 hour 9 minutes 27.55 sec

the answer is 1 hour 9 minutes 27.55 sec------->(4167.5468 sec)

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The area of a rectangle is 0.8 square units. The length is 3.2 units and the width is x units.
Naddika [18.5K]
Area= l*b
0.8=3.2*x
0.8/3.2=x
x=0.25 units
3 0
3 years ago
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Copy the incomplete axes and fill in the missing number so that the scaling is consistent.
juin [17]

Answer:

A: write0,4,8,12,16,20 on the line which the answer for A is 16 divided by 4=4

B: Write 0,25,50,75,100,125,150 on the line which the answer for B is 50 divided by 2= 25

5 0
3 years ago
What is the sum of the measures of the interior angles of a regular polygon if leach exterior angle measures 120°?
GREYUIT [131]

Answer:

180

Step-by-step explanation:

180-120 = 60 this is one of all the congruent angles

of the top of my head i know a regular triangle has three 60 degree angles meaning it is 60*3 = 180

5 0
3 years ago
Charlie knows that 3 blocks are needed to make a tower that is 0.5 foot high.
iogann1982 [59]

Answer:

24 blocks will be needed to make the tower that is 4 feet high

Step-by-step explanation:

Let us use the ratio method to solve the question

∵ Charlie knows that 3 blocks are needed to make a tower that is

   0.5 foot high

∵ He needs to make a tower that is 4 feet high

→ By using the ratio method

→  Blocks  :  height (ft)

→   3          :   0.5

→   x          :   4

→ By using the cross multiplication

∵ x × 0.5 = 3 × 4

∴ 0.5x = 12

→ Divide both sides by 0.5 to find x

∵ \frac{0.5x}{0.5} = \frac{12}{0.5}

∴ x = 24

∵ x represents the number of blocks

∴ 24 blocks will be needed to make the tower that is 4 feet high

7 0
3 years ago
Simplify.<br> (8 + 14m) + m<br> O<br> 8 + 15 m<br> 23 m<br> 9 + 14 m<br> 22 m
olganol [36]

Answer:

Hi there!

Your answer is:

A) 8+15m

Step-by-step explanation:

Since we can't do anything within the parentheses, they go away.

8+14m+m

Combine like terms

8+15m

Hope this helps

5 0
3 years ago
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