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2 years ago

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Find each missing value on the trapezoids below

1 answer:

Lostsunrise [7]2 years ago

5 0

Answer:

Step-by-step explanation:

Nov 2, 2018 — And each missing value on the trapezoids below. ... Find. UR. (12x + 3). (7x - 13). (Gr + 6. 5448x+6 =180. 8x=120 x=157. 124+3+ 7x-13= 180.

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1.the ratio if the weight of an object on mars to its weight in earth is 9 to 25.If a person weighs 120pouns on earth,how much w

Ilya [14]

Question #1
$\frac{9}{25}=\frac{x}{120}\\\\120(9) = 25x\\\\1080 = 25x\\\\x= 43.2$

For #1, the answer is 43.2

Question #2
$\frac{6}{5} = \frac{2580}{x} \\\\2580(5) = 6x\\\\12900 = 6x\\\\x = 2150$

For #2, the answer is 2150

8 0

3 years ago

John is going on a trip and the country he is traveling to uses the Celsius scale. He is curious about converting Celsius temper

Setler79 [48]

Answer:

$f(x)=\dfrac{9}{5}x+32$ converts Celsius to Fahrenheit.

$g(x)=\dfrac{5(x-32)}{9}$ converts Fahrenheit to Celsius.

Step-by-step explanation:

Write given data in the table

$\begin{array}{cc}x&f(x)\\^{\circ}\text{C}&^{\circ}\text{F}\\20&68\\30&86\end{array}$

Let the expression for the function be

$f(x)=ax+b$

Note, that this equation is linear equation and it is well-known fact that the Celsius to Fahrenheit dependence is linear.

Substitute corresponding values into this expression:

$68=20a+b\\ \\86=30a+b$

Subtract these two equations:

$86-68=30a-20a\\ \\10a=18\\ \\a=\dfrac{9}{5}$

Substitute it into the first equation:

$68=20\cdot \dfrac{9}{5}+b\Rightarrow b=68-36=32$

So,

$f(x)=\dfrac{9}{5}x+32$

This is the function which converts Celsius to Fahrenheit.

And function

$g(x)=\dfrac{5(x-32)}{9}$ converts Fahrenheit to Celsius.

4 0

3 years ago

Read 2 more answers

viktelen [127]

Answer:

The last statement

7 0

3 years ago

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A boat can travel 112 miles on 14 gallons of gasoline. How much gasoline will it need to go 96 miles?

Oksi-84 [34.3K]

12. Divide 112 by 14 which comes to 8. Then take 96 and divide 96 by 8. Then you get 12

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3 years ago

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A scuba diver descends 0.75 meters per second. What is her change in elevation after 25 seconds?

vesna_86 [32]

Answer:

-18.75 Meters

Step-by-step explanation:

0.75 x -25 = -18.75 Meters :D

4 0

3 years ago