BriTheKueen
09.02.2021 •
Mathematics
The police use a speed gun to monitor one part of a highway. During one hour, 4 out of 25 cars were traveling above the speed limit. What percent of cars were traveling above the speed limit.
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Ответ:
16%
Step-by-step explanation: Because if you look at that denominator then you can see that its 25 so if you multiplied that by 4 then you'll get 100 which is 100% so whatever you do to the denominator you have to do to the numerator so 4x4 is 16 so thats 16% and there you go.
Ответ:
2. 4x - 2x = 2x
3. x * x = x sq or x^2
4. 7x / x (x and x cancels out from the numerator and denominator, so we are left with 7 / 1 or 7) = 7
5. 5x + 3x - 4x = 4x
b. 4a^2 + a^2 + 2a^2 = 7a^2
b. 15x^2 - 5x^2 = 10x^2
b. a^2 * a * a^2 = a^5
b. 4ab / 2ab = 2
b. 4x^2 - x^2 - x^2 = 2x^2
Hope you understood the above. If you need any help I will be make sure to help you.