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2 years ago

Solve 3x - 5 + x = 31. -12 -9 9 12

Mathematics

1 answer:

steposvetlana [31]2 years ago

8 0

Answer: 9

-12 results in -53

-9 results in -41

9 results in 31

12 results in 43

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Express each as ratio in the simplest form.:

bija089 [108]

Step-by-step explanation:

1) 15/60 = 3/12 = 1/4

2) 8/36 = 4/23

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1 year ago

Solve by any method (graphing, substitution, linear combination) y=x−7 5x+2y=7

Virty [35]

Answer:

(x, y) = (3, -4)

Step-by-step explanation:

See the attached for a graph.

3 0

2 years ago

Please answer quick I need to get this for my mock test

Ulleksa [173]

I think 64.29 bc 90 percent of 500 is 450 so i did 450 percent of 700

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2 years ago

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Simplify: |3 – 10| – (12 / 4 + 2)^2 0 - 32 O – 18 O3 0 - 6

MakcuM [25]

Answer:

-18

Step-by-step explanation:

Simplify: |3 – 10| – (12 / 4 + 2)^2

$|3 - 10| - (\frac{12}{4} + 2)^2\\\\|-7|-(\frac{12}{4} + 2)^2 < == absolute\ numbers\ are\ always\ positive\\\\7-(3+2)^2 < ==add\ numbers\ in\ parenthesis\\\\7-5^2 < ==square\ the\ number\ (5)\\\\7-25 < ==add\ numbers\\\\-18 < ==final\ answer$

Hope this helps!

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1 year ago

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A boundary stripe 6 in. wide is painted around a rectangle whose dimensions are 120 ft by 230 ft. Use differentials to approxima

Nimfa-mama [501]

Answer:

350 square feet

Step-by-step explanation:

We are given that

Width of strip=6 in

Dimension of rectangle= $20 ft\times 230 ft$

We know that

Area of rectangle ,A=xy

Differentiate

$dA=\frac{\partial A}{\partial x}x+\frac{\partial A}{\partial y}y$

We have $\frac{\partial A}{\partial x}=y=230 ft$

$\frac{\partial A}{\partial y}=x=120$

$dx=\frac{12}{12}=1 ft$

1 ft=12 in

Because 6 in added in both side of breadth

dy= $\frac{12}{12}=1 ft$

Because 6 in added on both sides of length of rectangle

Substitute the values

$dA=230\times 1+120\times 1=350 ft^2$

Hence, the number of square feet of paint in the strip=350 square feet

7 0

3 years ago