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3 years ago

Jon’s time for running the mile in gym class is 9.2 minutes. Jacky’s time is 9.18 minutes. Who ran the mile in less time?

Mathematics

1 answer:

s344n2d4d5 [400]3 years ago

5 0

Answer:Jacky

Step-by-step explanation:

Given

Jon time to run 1 mile in gym is 9.2 minutes

Jacky time to run a mile is 9.18 minute

9.2 minutes is 552 sec $(9.2\times 60)$

9.18 minutes is 550.8 sec $(9.18\times 60 )$

it is clear that 552 > 550.8

Thus Jacky run a mile in less time

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How much is 109 divided by 5?

butalik [34]

There's more than one way to do this problem.

Try this: Mult. both 109 and 5 by 2, obtaining 218 and 10.

What is 218 div. by 10? Do this in your head.

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3 years ago

Find the midpoint of AB for: A(7,0)|and B(0,3)

liberstina [14]

Answer:

$\boxed {\boxed {\sf (\frac {7}{2}, \frac{3}{2}) \ or \ (3,5, 1.5) }}$

Step-by-step explanation:

The midpoint is essentially a point with the average of the 2 x-coordinates and the 2 y-coordinates.

The formula is:

$(\frac {x_1+x_2}{2}, \frac{y_1+y_2}{2})$

We are given two points: A (7,0) and B (0, 3). Remember points are written as (x, y).

Therefore,

$x_1= 7 \\y_1=0 \\x_2=0 \\x_2=3$

Substitute the values into the formula.

$(\frac {7+0}{2}, \frac{0+3}{2})$

Solve the numerators first.

$(\frac {7}{2}, \frac{3}{2})$

The midpoint can be left like this because the fractions are reduced, but it can be written as decimals too.

$(3.5, 1.5)$

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3 years ago

1.Which Symbol will make the number sentence - | 16 | _ 16 true?

Dahasolnce [82]

1. =
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3 years ago

If someone makes $650 a week, how much will they make in a<br> year?

Arlecino [84]

Answer:

they will make $33,800 in a year.

Step-by-step explanation:

there are 52 weeks in a year, so $650×5= $33,800

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2 years ago

Please help with question 4A,B please<br> Thank you

mrs_skeptik [129]

<h3>Given</h3>

C(t) = 40 cm + t·(2/5 cm/s) . . . circumference of a circle vs time

dr/dt for radius r
r at t=4 seconds

<h3>Solution</h3>

The circumference and radius of a circle are related by

... C = 2πr

so the radius in terms of circumference is

... r = C/(2π)

... r(t) = (40 +0.4t)/(2π) = (1/π)(20 cm + 0.2t cm/s)

Then dr/dt is

... dr/dt = 0.2/π cm/s

And the radius at t=4 s is

... r(4) = (1/π)(20 + 0.2·4) cm

... r(4) = 20.8/π cm

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2 years ago