3 years ago

A balloon rises to the ceiling of a gymnasium. You want to find the distance from

Mathematics

1 answer:

aivan3 [116]3 years ago

4 0

The answer is 32. you would multiply 8 times 4 which is 32 feet.

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Two trains started moving at the same time, train A from Boston to New York, and train B from New York to Boston. The distance b

Ede4ka [16]

Answer:

After 1.7 hours

Explanation:

1. Calculate the average speed of train B

60mph = 3/4 (s) ⇒ s = 60 (4/3) mph = 80 mph

2. Build a table

When the two trains meet:

Train Average speed Distance time (distance/average speed)

mph

A 60 x x/60

B 80 240 - x (240 - x) / 80

3. Write the equation

The time, when the two trains meet, is the same for both trains:

$\dfrac{x}{60}=\dfrac{240-x}{80}\\ \\ \\ 80x=14,400-60x\\ \\ 80x+60x=14,400\\ \\ 140x=14,400\\ \\ x=14,400/140\\ \\ x=102.85miles$

4. Calculate the time:

x/60 = 102.86 / 60 = 1.7 hours

The two trains will meet after 1.7 hours

7 0

2 years ago

I need help plssssss

Black_prince [1.1K]

Substitute the values given.
-2-3(2) then solve
Your answer should be -8

5 0

2 years ago

LOTS of points due today!!!!! 8-10

Karolina [17]

Answer:

they are 10 ppl in the crew

$12800×15/100=$1920

$10×100/80=$12.50

8 0

2 years ago

Find the measure of angle ∡4

dexar [7]

Since they share the same angle measurement, and 4 is smaller than 158 degrees, you subtract 158 from 180 and angle 4 = 22 degrees

7 0

3 years ago

What are two decimals whose product is close to 10?

PtichkaEL [24]

Answer:

10.00022
10.0011

Step-by-step explanation:

2.14 and 4.673

2.14 x 4.673 = 10.00022

2.55 and 3.922

2.55 x 3.922 = 10.0011

4 0

2 years ago