<span>It will take 20 minutes. The fridge needs to cool down by 90-50=40degrees. The fridge cools at 2 degrees per minute, i.e. 40/2=20 minutes total.</span>

8 0

3 years ago

Subtract (5x^2-5) from the sum (x^2-9x+2) and (4x^2-5x+1)

Ivan

Assignment: $\bold{Solve \ Equation: \ \left(x^2-9x+2\right)+\left(4x^2-5x+1\right)-\left(5x^2-5\right)}$

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Answer: $\boxed{\bold{-14x+8}}$

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Explanation: $\downarrow\downarrow\downarrow$

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[ Step One ] Remove Parenthesis: (a) = a

$\bold{x^2-9x+2+4x^2-5x+1-\left(5x^2-5\right)}$

[ Step Two ] Simplify $\bold{-\left(5x^2-5\right)}$

$\bold{-5x^2+5}$

[ Step Three ] Rewrite Equation

$\bold{x^2-9x+2+4x^2-5x+1-5x^2+5}$

[ Step Four ] Simplify $\bold{x^2-9x+2+4x^2-5x+1-5x^2+5}$

$\bold{-14x+8}$

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$\bold{\rightarrow Mordancy \leftarrow}$

3 0

3 years ago

Su Ling started an art project with 1 yard felt. She used 5/6 yard. How much felt does Su Ling have left?

Vadim26 [7]

Su has about 1/6 yards of felt left my dude/dudett

7 0

3 years ago

Read 2 more answers

The statement "one-eighth the age, a" can be expressed algebraically as ?

Harrizon [31]

Answer:

1/8a

Step-by-step explanation:

4 0

2 years ago