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3 years ago

9

Superman and Spider-Man take turns in saving the world in the ratio of 4:3. There are 42 disastrous events , how many times do t

hey each save the world ?

1 answer:

sladkih [1.3K]3 years ago

4 0

Answer:

42 times

Step-by-step explanation:

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How many pounds of a 4% solution of borax must be added to 24 pounds of a

Marrrta [24]

Answer:

8 pounds of 4% solution of borax

Step-by-step explanation:

Let x be the 4% solution

24 pounds of 12% solution

obtain a 10% solution of borax that is (x+24) pounds

4% is 0.04 and 12% is 0.12 , 10% is 0.1

$0.04x+24(.12)=0.1(x+24)$

solve the equation for x

$0.04x+24(.12)=0.1(x+24)\\0.04x+2.88= 0.1x+2.4\\2.88= 0.06x+2.4\\0.48=0.06x\\x=8$

so 8 pounds of 4% solution of borax

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3 years ago

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rewona [7]

the answer is the second option (-5,1)

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3 years ago

If f(x)=3x^2 and g(x)=4x^2+1, what is the degree of (f0g)(x)

Oxana [17]

Answer:

6⃣

Step-by-step explanation:

3 + 24x² + 48x⁶; take the highest degree term possible.

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3 years ago

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Step-by-step explanation:

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2 years ago

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Find the inverse of the function: f(x)= 2x-3/x+1

den301095 [7]

$f(x)=\frac{2x-3}{x+1}\\\\
y=\frac{2x-3}{x+1}\\\\
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x=\frac{-3-y}{y-2}\\\\
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2 years ago