3 years ago

26

Mathematics

1 answer:

Fantom [35]3 years ago

3 0

It’s 16 because you need to kiss the moon

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The time, t, required to travel a fixed distance varies inversely as the

Lemur [1.5K]

You must travel at 42 mph for 4 hours

Solution:

Time varies inversely as rate of motion

Let "t" be the time required

Let "r" be the rate of motion

Then, we get

$t \propto \frac{1}{r}\\\\t = k \times \frac{1}{r}\\\\t = \frac{k}{r} -------- eqn 1$

Where, "k" is the constant of proportionality

You travel 3 hours at a rate of 56 mph

Substitute t = 3 and r = 56 in eqn 1

$3 = \frac{k}{56}\\\\k = 3 \times 56\\\\k = 168$

Find the rate you must travel for 4 hours

r = ? and t = 4

Substitute t = 4 and k = 168 in eqn 1

$4 = \frac{168}{r}\\\\r = \frac{168}{4}\\\\r = 42$

Thus you must travel at 42 mph for 4 hours

4 0

4 years ago

the original price of a football helmet was $78.60. If peter was given a 15 percent discount how much did he pay for the helmet

earnstyle [38]

66.81 this is the answer

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4 years ago

Solving rational equations, can anybody help please???

denis23 [38]

Hello : here is a solution

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3 years ago

Mackenzie has $70 in a savings account. The interest rate is 5%, compounded annually.

sladkih [1.3K]

Answer:

She will have $73.5 in 1 year

Step-by-step explanation:

She has $70 and the interest rate is 5% so we need to add 5% to the initial value

x = $70 + $70 * 5%

5% = 5/100

x = $70 + $70 * 5/100

x = $70 + $3.5

x = $73.5

She will have $73.5 in 1 year

8 0

3 years ago

The weather outside was very abnormal. The temperature started out at 22°C in the morning and went to -3°C at noon. It stayed at

Serjik [45]

Answer:

your answr would be 16c

Step-by-step explanation:

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3 years ago