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3 years ago

A hot air balloon descends at a rate of 320 feet per minute for 3 minutes. Use integers to calculate and

2 answers:

6 0

Given:
descends at a rate of 320 feet per minute for 3 minutes.

320 feet per minute * 3 minutes = 960 feet

Total change in altitude is 960 feet. Since it is descending, I believe it would be a negative 960 feet.

nevsk [136]3 years ago

3 0

Negative 960 feet per minute

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Order 51.835, 51.836, 51.736, and 51.837 in decreasing order.

Tju [1.3M]

Answer:

D.)51.837, B.)51.836, A.)51.835, C.)51.736

Step-by-step explanation:

its decreasing in this order

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3 years ago

Read 2 more answers

I dont kniw and didnt know how to take down a question

stiv31 [10]

I don’t think you can take down a question on Brainily but thanks for the 5 points
have a wonderful day!!!!!

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2 years ago

Suppose the population of a country is 100 people: 40 work full-time, 20 work half-time but would prefer to work full-time, 10 a

kati45 [8]

Answer:

Step-by-step explanation:

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3 years ago

The swimming team has competed in 45 races this season. They have won 30 races so far. How many races will the team need to win

tatuchka [14]

Answer:

15 races

Step-by-step explanation:

The team has competed in 45 and has won 30. So the success rate is:

Success rate is:

$Sccess\ rate=r= \frac{30}{45}*100\\ =66.7\ percent$

We have to find the number of races the team needs to win for 75% success rate

Which means that

$r = \frac{30+x}{45+x} = 0.75\\$

We have to solve the equation for x

$\frac{30+x}{45+x}=0.75\\ 30+x = 0.75(45+x)\\30+x=33.75+0.75x\\x-0.75x=33.75-30\\0.25x=3.75\\x=\frac{3.75}{0.25}\\ x=15$

The team needs to win 15 races to get 75% success rate ..

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3 years ago

you are traveling down the interstate averaging 50 MPH. How much has passed when you have traveled 120 miles?

kirill [66]

I assume you are asking how much time has passed
now, we can set up a proportion with this:
let x = time(in hours)
$\frac{120miles}{50miles} = \frac{x}{1 hour}$
we cross multiply to get:
$50x=120$
divide both sides by 50 to get:
$x= \frac{120}{50} =2.4= \frac{12}{5}=2 \frac{2}{5}$ hours

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2 years ago