Ascientist has two solutions, which she has labeled solution a and solution b. each contains salt. she knows that solution a is 45% salt and solution b is 95% salt. she wants to obtain 160 ounces of a mixture that is 60% salt. how many ounces of each solution should she use?
explanation

She needs 112 ounces of Solution A and 48 ounces of Solution B.

Step-by-step explanation:

If a is the ounces of Solution A, and b is the ounces of Solution B, then:

a + b = 160

0.45a + 0.95b = 0.60(160)

Solve the system of equations.  Using substitution:

0.45a + 0.95(160 − a) = 0.60(160)

0.45a + 152 − 0.95a = 96

56 = 0.5a

a = 112

b = 48

She needs 112 ounces of Solution A and 48 ounces of Solution B.

1.3

step-by-step explanation:

3x2=6   9x+6

bring down the 6 on both sides

6+6=12

12= 9x

divide by 9

12/9 =

1.3 =x

well we know there are 4 clubs in 52 cards so it’s replaced so it should be 3/51

step-by-step explanation: