Answer:
Step-by-step explanation:
watermelon (w): 2
jackfruit (j): 4
durian (d): 4 x 2 = 8
5w + 12j + xd = 324
5 (2) + 12 (4) + x (8) = 324
10 + 48 + 8x = 324
58 + 8x = 324
8x = 324 -58
8x = 266
x = 33.25
Answer:
9y + 54
Step-by-step explanation:
Multiply 9 both terms inside the parentheses
y*9 + 6*9
9y + 54
If 40% are boys, 60% are grills.
As fractions:
4/10 = 2/5 are boys
6/10 = 3/5 are grills
70% or 7/10 of the boys arrive by car:
(2/5)(7/10) = 14/50 = 7/25
And 60% or 3/5 of the grills arrive by car:
(3/5)(3/5) = 9/25
So in total we have 7/25 + 9/25 = 16/25 = 64/100 = 64%
64% chance that a child arrives by car.
Answer:
it is b
Step-by-step explanation: