Answer:
yes because -3x4 would be negative 3 four times, reseulting in a negative number
Step-by-step explanation:
hope this helped
Answer:
32.99
Step-by-step explanation:(you might have to round) if you have to round it or.. but this is it because
236.40 divided by 24 is 9.85 so
325 divided by 9.85 is 32.99 (you only need 2 decimal places for these kinds of questions because of repeating decimals).
Hope this helps :)
Answer:
First brand = 18 gallons
Second brand = 12 gallons
Step-by-step explanation:
Let the first brand brand be A and the second brand be B.
Thus, since he wants to obtain 30 gallons of a mixture that contains 30% pure antifreeze, then we have;
A + B = 30 - - - (eq 1)
Also; The first brand is 20% pure antifreeze, and the second brand is 45% pure antifreeze. Thus;
0.2A + 0.45B = (0.3 × 30)
0.2A + 0.45B = 9 - - - (eq 2)
From eq 1, we have; A = 30 - B
Put 30 - B for A in eq 2;
0.2(30 - B) + 0.45B = 9
6 - 0.2B + 0.45B = 9
0.25B = 9 - 6
0.25B = 3
B = 3/0.25
B = 12
Thus, A = 30 - 12 = 18 gallons
