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3 years ago

If D=20 miles when T=15 minutes, write a proportion to find D for T=20 minutes

Mathematics

1 answer:

Igoryamba3 years ago

8 0

D/20=20/15

d=400/15

d=80/3

d=26 2/3 miles

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love history [14]

Improper Fraction =75/14
Mixed Number=5 5/14

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3 years ago

Water comes out of a pipe at a rate of 15 gallons per minute. How many gallons have come out after 5 minutes?

lubasha [3.4K]

Answer:

75 gallons

Step-by-step explanation:

15gal PER 1 min

__gal PER 5 mins

To solve this, I would do 15 x 5. That gets me to 75 gallons.

Hope this helps :D

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3 years ago

A circle is inscribed in a square with a side length of 144. If a point in the square is chosen at random, what is the probabili

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Given :

A circle is inscribed in a square with a side length of 144.

So, radius of circle, r = 144/2 = 72 units.

To Find :

The probability that the point is inside the circle.

Solution :

Area of circle,

$A_c = \pi r^2\\\\A_c = 3.14 \times 72^2\ units^2\\\\A_c = 16277.76 \ units^2$

Area of square,

$A_s = (2r)^2\\\\A_s = ( 2 \times 72)^2\ units^2\\\\A_s = 20736\ units^2$

Now, probability is given by :

$P = \dfrac{A_c}{A_s}\\\\P = \dfrac{16277.76}{20736}\\\\P = 0.785$

Therefore, the probability that the point is inside the circle is 0.785 .

4 0

3 years ago

If 223x=78,find x. If 223x=78, find x

Maslowich

Answer:0.3273542601

Step-by-step explanation:

73÷223=0.3273542601

6 0

3 years ago

During a free fall Swati was accelerating at -9.8m/s^2. After 120 seconds how far did she travel? Use the formula =1/2 * t^2 to

jarptica [38.1K]

Answer:

She traveled 70560 m.

Step-by-step explanation:

Given :

Acceleration (g) = $-9.8m/s^{2}$

Time : 120 seconds .

To Find : Distance traveled

Solution:

Since we are given that there is a free fall .

So, we will use the formula: $d=\frac{1}{2} gt^{2}$

Now put the given values in the formula :

⇒ $d=\frac{1}{2}*(-9.8)*(120)^{2}$

⇒ $d=\frac{1}{2}*(-9.8)*14400$

⇒ $d=\frac{-141120}{2}$

⇒ $d=-70560$

Negative sign shows the direction only.

Hence she traveled 70560 m.

6 0

3 years ago