It’s D
the number -2/3 next to x is always the slope but the -1 is alone so it the y-intercept
Answer:
7.5 kg
Step-by-step explanation:
Ratio of sand to cement = 24kg : 5kg
Today he needs to make the same type of mortar mix, but he will use 36kg of sand.
Let
x = quantity of cement used
Ratio of sand to cement = 36 kg : x kg
Equate both ratios
24 kg : 5 kg = 36 kg : x kg
24/5 = 36/x
Cross product
24 * x = 5 * 36
24x = 180
x = 180/24
x = 7.5
x = quantity of cement used = 7.5 kg
Step-by-step explanation:
4.00x + 5.75y = 4.70
x + y = 58.75
I dont know the answer but I believe that is the formula
You would use 6 = (0.08)w
