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3 years ago

A submarine changes its position by −7 meters every second.

2 answers:

8 0

Since it says that it descended -7 after every second. It then say how much will it be after 300 seconds.
So...
-7 times 300 is 2100
so the position it will be at is -2100

Hope it helped!

IgorLugansk [536]3 years ago

5 0

The correct anwer is -21 and how i got that is by taking -7*300 to get -21 as my answer let me know if it helped any...

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What is 75% of 140? 65 75 95 105

monitta

Answer:

105

Step-by-step explanation:

75 percent *140 =

(75:100)*140 =

(75*140):100 =

10500:100 = 105

Now we have: 75 percent of 140 = 105

Question: What is 75 percent of 140?

Percentage solution with steps:

Step 1: Our output value is 140.

Step 2: We represent the unknown value with $x$.

Step 3: From step 1 above,$140=100\%$.

Step 4: Similarly, $x=75\%$.

Step 5: This results in a pair of simple equations:

$140=100\%(1)$.

$x=75\%(2)$.

Step 6: By dividing equation 1 by equation 2 and noting that both the RHS (right hand side) of both

equations have the same unit (%); we have

$\frac{140}{x}=\frac{100\%}{75\%}$

Step 7: Again, the reciprocal of both sides gives

$\frac{x}{140}=\frac{75}{100}$

$\Rightarrow x=105$

Therefore, 75\% of 140is 105

8 0

3 years ago

Read 2 more answers

As an airplane rises, the outside temperature drops 3.6 degrees Fahrenheit for each 1000 feat of elevation gain. Suppose the out

VLD [36.1K]

Answer:

30000 feet

Step-by-step explanation:

temperature on ground level = 65 °F

temperature at cruising altitude = -43 °F

total decrease in temperature = 65 - (- 43) = 65 + 43 = 108 °F

for each 1000 feet elevation temperature drops by 3.6 °F

and we have the total drop of temperature as 108 °F.

so, Height of plane at cruising altitude = (drop in temperature/ 3.6) X 1000

= $\frac{108}{3.6} X 1000$

= 30000 feet

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4 years ago

Find the volume of a sphere with a surface area of 1296 in.

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Answer:

V≈4387.14

Step-by-step explanation:

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3 years ago

Please give me the correct answer.Only answer if you're very good at math.

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Answer:

Step-by-step explanation:

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Step-by-step explanation:

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