2/7y + 5 = 9
Subtract 5 from both sides
2/7y = 4
Multiply both sides by 7
2y = 28
Divide both sides by 2
<em><u>y = 14</u></em>
MAYBE COULD B (8) I guess
Answer:
- 12.5 ounces of 12% alloy
- 37.5 ounces of 24% alloy
Step-by-step explanation:
Let x represent the amount (in ounces) of 24% alloy in the mix. Then the amount of 12% alloy is (50 -x). The amount of silver in the mix is ...
24%·x + 12%·(50 -x) = 21%·50
12x = 450 . . . . . . simplify, multiply by 100 (to eliminate %), and subtract 600
x = 37.5 . . . . . . . divide by 12
The jeweler needs to mix 37.5 ounces of 24% silver alloy with 12.5 ounces of 12% silver alloy to make 50 ounces of 21% silver alloy.
Answer:
vertical angles
Step-by-step explanation:
angles 6 and 7 are formed by the same two lines and are on opposite sides of the intersection point
Answer:
D. LN = KM is not correct
Step-by-step explanation:
