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4 years ago

How to get X or y alone

Mathematics

1 answer:

Trava [24]4 years ago

7 0

To get X and Y by itself, move everything else to the other side of the equal sign. Do this by doing the opposite operation.

Example: x-2y=11
add 2y to both sides to get x by itself
x=2y+11

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Solve –19 = x – 4. A. x = –23 B. x = –76 C. x = –15 D. x = 25

Marrrta [24]

If you're Looking for X, It's -15. I hope I helped.

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4 years ago

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It takes julie 75 minutes to read 60 pages.

Viktor [21]

A.
$\frac{15}{12} minutes$
b. 60x=(75x350)pages

c. x= 437.5 minutes
=7 hr 17.5 minutes
=7 hr 18 min (round off)

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3 years ago

The volumes of two similar solids are 210 m3 and 1,680 m3. The surface area of the larger solid is 856 m2. What is the surface a

Ksju [112]

we know that

$scale \ factor^{3}=\frac {volume\ larger\ solid }{volume\ smaller\ solid}$

Find the value of the scale factor

$volume\ larger\ solid= 1,680\ m^{3} \\ volume\ smaller\ solid= 210\ m^{3}$

substitute the values in the formula

$scale \ factor^{3}=\frac {1,680 }{210}$

$scale \ factor^{3}=8$

$scale \ factor=\sqrt[3]{8} \\ scale \ factor= 2$

Find the surface area of the smaller solid

we know that

$scale \ factor^{2}=\frac {surface\ area\ larger\ solid }{surface\ area\ smaller\ solid}$

$surface\ area\ larger\ solid =856\ m^{2} \\ scale\ factor =2$

$surface\ area\ smaller\ solid= \frac{surface\ area\ larger\ solid}{scale \ factor^{2}}$

substitute the values

$surface\ area\ smaller\ solid= \frac{856}{2^{2}}$

$surface\ area\ smaller\ solid=214\ m^{2} }$

therefore

the answer is

The surface area of the smaller solid is equal to $214\ m^{2}$

3 0

4 years ago

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Part A: Solve for A

Naddik [55]

Answer:

a=25

angle abq=139 degrees

bcr=41

Step-by-step explanation:

(2a-9)+(5a+14)=180

7a+5=180

7a=175

a=25

2(25)-9=41

180-41=139

angle abq=139 degrees

bcr=41

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3 years ago

What is the slope of the line? a.-2 b.-1/2 c.1/2 d.2

Anastasy [175]

Using m = (y2-y1)/(x2-x1)

(2-3)/(4-2)
-1/2
The slope is -1/2. b.

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4 years ago

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