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2 years ago

What's is 9 45/50 as a decimal

1 answer:

5 0

9.9. 9 is a who number, so it remains the same. 45/50 multiplies to 90/100, which is .90, and you don't need the extra "0," so the answer is 9.9.

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A/5 = 3<br> I don’t get this can someone give me the answer

deff fn [24]

15/5=3 meaning 15 divided by 5 so A=15

3 0

2 years ago

Read 2 more answers

2x + 2y = -4<br> 3x - 2y = 9

Murrr4er [49]

Answer:

x = −y −2

Step-by-step explanation:

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2 years ago

Suzanne has a rectangular garden which is 18 feet long and 11 feet wide. She has 168 square foot of paving stones, and she wants

VikaD [51]

Answer:

width = 2.5 feet

Step-by-step explanation:

Suzanne has a rectangular garden which is 18 feet long and 11 feet wide.

Area of the garden = length times width = 18 times 11= 198 square foot

Let 'w' be the width of the border

Length of the garden with border = 18+2w

Width of the garden with border = 11+2w

Area of the garden with border = $(18+2w)(11+2w)=4w^2+58w+198$

Area of the border = $4w^2+58w+198-198=4w^2+58w$

She has 168 square foot of paving stones,

$4w^2+58w=168$

Solve for w

apply quadratic formula

a= 4, b= 58 and c=-168

$\quad x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

$w=\frac{-58+-\sqrt{58^2-4\cdot \:4\left(-168\right)}}{2\cdot \:4}$

$w=\frac{-58+-\sqrt{6052}}{8}$

we get two values for w

$w=\frac{-58+\sqrt{6052}}{8}=2.47$

$w=\frac{-58-\sqrt{6052}}{8}=-16.97$

5 0

3 years ago

There are 176 gallons of gas in tank a. There are 19 gallons less gas in tank b. How many gallons of gas are there in take b

Vilka [71]

Answer:157

Step-by-step explanation:

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3 years ago

If Sin A = { then(2Cot²A + 2) is

alukav5142 [94]

Answer:

Step-by-step explanation:

=2(cot²A+1)

=2cosec²A. [` . ` cot²A+1=cosec²A] =2(1/sinA)²

[' . 'cosecA=1/sinA]

=2×3²/1

=2cot²a+2=2×8+2=16+2=18

7 0

3 years ago