Answer:
if you are dividing 299.96 If you are multiplying 26.99
Step-by-step explanation:
If you are dividing: Factor the numerator and denominator and cancel the common factors.
If you are multiplying: Simplify the expression.
The first thing we must do for this case is to define variables:
x: the total mass of the chemical in the container
y: a sample of a chemical from a container
We have the following equation:
y = (3/10) x - 5 3/4
Then, for y = 39.1 we have:
39.1 = (3/10) x - 5 3/4
Clearing x:
(3/10) x = 39.1 + 5 3/4
(3/10) x = 44.85
x = (10/3) * (44.85)
x = 149.5 grams
Answer:
the total mass in grams of the chemical in the container before the scientist removed the sample of 39.1 grams was:
x = 149.5 grams.
Answer:
29
Step-by-step explanation:
57+x=86
x=86-57
x=29
Answer:
D
Step-by-step explanation:
(I solved in the picture, firstly look at there)
after completing the square and factoring :
Hope this helps ^-^
