Answer:
boys = 250
girls = 150
Step-by-step explanation:
5g = 3b eq. 1
g + b = 400 eq. 2
g = girls
b = boys
From the eq. 2
g = 400 - b
Replacing this last eq. on eq. 1:
5(400-b) = 3b
5*400 + 5*-b = 3b
2000 - 5b = 3b
2000 = 3b + 5b
2000 = 8b
2000/8 = b
250 = b
From eq. 2
g + 250 = 400
g = 400 - 250
g = 150
Check:
from eq. 1
5*150 = 3*250 = 750
Answer:
1 ft. = 16 in.
Step-by-step explanation:
6 ft. 8 in. is 80 in.
then you would divide 80 by 5 to get 16.
not sure what scale factor you were looking for, so i did ft. to in.
not 100% sure though
best of luck!
Multiply both sides by -4 and you should get r= -4/7
Pretty sure it's 1,778 because 4,064 divided by 32 gives you 127 and 127 times 14 gives you back 1,778
