We have 60 gallons of 20% antifreeze.
How much 70% antifreeze do we add to get 60% antifreeze?
We'll make "x" the gallons of 70% we must add.
.20 * 60 + .70 x = .60 * (60 + x)
12 + .70x = 36 + .60x
.10x = 24
x = 240 gallons of 70% antifreeze.
Source
1728.com/mixture.htm (see example B)
There are a total of 4 queens in a standard deck of 52
cards. The probability that the 2 consecutive draws are queen is:
Probability = (4 / 52) * (3 / 51)
<span>Probability = 12 / 2652 = 0.004</span>
Answer:
D. Y <u><</u> 2x - 1
Step-by-step explanation:
Answer:

Step-by-step explanation:
Let
c -----> the additional amount (in dollars) David will spend
we know that
The word " at most" in this context means "less than or equal to"
The amount David has spent plus possible additional amounts he will spend must be less than or equal to $39
so
The inequality that represent this situation is

solve for c
subtract 22 both sides


The maximum amount he could spend is $17
C because it’s c trust me