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3 years ago

Robin can run 1.71 kilometers in 10 minutes. How far can she run in 1.5 hours?

Mathematics

1 answer:

Flura [38]3 years ago

7 0

Answer:

I think is 15.39 kilometers

Step-by-step explanation:

1 hour=60 minutes +.5 hours =90 minutes = 9 x 1.71 = 15.39

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Help 26-1x6 ASAP hurry

Ronch [10]

Answer: 20

Step-by-step explanation: Lets break down the problem;

You always use multiplication first when solving an expression.

26 - 1 x 6

1 x 6 = 6

26 - 6 = 20

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3 years ago

A rock is thrown up from the ground at a velocity of 84 feet per second. The formula h = -16t2 + 84t gives the rock's height in

kenny6666 [7]

Answer:

h = 110.24 m

Step-by-step explanation:

It is given that,

A rock is thrown up from the ground at a velocity of 84 feet per second. The formula $h = -16t^2 + 84t$ gives the rock's height in feet after t second.

We need to find the maximum height of the rock. For maximum height put $\dfrac{dh}{dt}=0$

So,

$\dfrac{d( -16t^2 + 84t)}{dt}=0\\\\-32t+84=0\\\\t=\dfrac{84}{32}\\\\t=2.62\ s$

Put t = 2.62 s in the equation of height. So,

$h = -16(2.62)^2 + 84(2.62)\\\\h=110.24\ m$

So, the maximum height of the rock is 110.24 m.

7 0

3 years ago

One month, a homeowner used 150 units of gas and 520 units of electric for a total cost of $84.20. The next month, 210 units of

Tom [10]

Answer:

gas = $0.23, electricity = $0.10

Step-by-step explanation:

4 0

3 years ago

What does 1/2 Equivalent to.

Natali5045456 [20]

As a decimal it is equivalent to 0.5
As a fraction it can be equivalent to 2/4, 3/6, 4/8, 5/10 and so on. Hope this helps :)

4 0

3 years ago

What happens to the area of a circle when the radius in doubled?

Gre4nikov [31]

It's going to quadruple

3 0

3 years ago