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3 years ago

I'M CRYING AND I'M DYING , HELP ME! SUPER EASY

Mathematics

1 answer:

Mrrafil [7]3 years ago

3 0

The answer for the spinner would be 1/2 because there are 4 R’s out of 8 so it would be 4/8 which simplifies to 1/2
The answer for the second one I’m sure would be .45 since rolling a one would add up to 9 and the total times it was rolled is 20 so if she rolls again she would have .45 since that’s the answer to 9/20

Hope this helps !

~Your Cookie Monster ( And don’t cry :) )

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110 decreased by 70%

Bess [88]

110x0.7= 77
110-77= 33
so 33 is your answer

7 0

2 years ago

What is the life expectancy of a circulating bill

Diano4ka-milaya [45]

Answer:

The life expectancy of a circulating coin is 25 years. The life expectancy of a circulating dollar bill is only 1/20 as long.

Step-by-step explanation:

3 0

3 years ago

How do I do this ? I don’t understand logarithm

ale4655 [162]

Hello from MrBillDoesMath!

Answer:

x = 19

Discussion:

Both sides are logarithms to the same base, namely 20 , which implies the expressions in x (what we are taking logarithms of) must be equal. So we need to solve

4x - 10 = 3x + 9 => subtract 3x from both sides

4x-3x - 10 = 9 => add 10 to both sides

x = 9 + 10 = 19

Thank you,

MrB

8 0

2 years ago

How many gallons of a 80% antifreeze solution must be mixed with 80 gallons of 15% antifreeze to get a mixture that is 70% antif

konstantin123 [22]

440 gallons of 80 % antifreeze solution must be mixed with 80 gallons of 15% antifreeze to get a mixture that is 70% antifreeze

<em><u>Solution:</u></em>

Let "x" be the gallons of 80 % antifreeze added

Therefore, "x" gallons of 80 % antifreeze solution must be mixed with 80 gallons of 15% antifreeze

Final mixture is x + 80

Therefore, we can frame a equation as:

"x" gallons of 80 % antifreeze solution must be mixed with 80 gallons of 15% antifreeze to get (x + 80) gallons of 70 % antifreeze

Thus, we get,

x gallons of 80 % + 80 gallons of 15 % = (x + 80) gallons of 70 %

$x \times \frac{80}{100} + 80 \times \frac{15}{100} = (x+80) \times \frac{70}{100}\\\\0.8x + 80 \times 0.15 = (x+80) \times 0.7\\\\0.8x+12 = 0.7x+56\\\\0.8x-0.7x=56-12\\\\0.1x = 44\\\\x = \frac{44}{0.1}\\\\x = 440$

Thus 440 gallons of 80 % antifreeze solution must be mixed

4 0

2 years ago

PLEASE HELP ME PLEASE I NEED THE ANSWER AS FAST AS POSSIBLE PLEASE HELP PLEASE

Harman [31]

It is 121 x 10^12 so the answer is A.

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2 years ago