Solve the problem.Anne and Nancy use a metal alloy that is 17.7% copper to make jewelry. How many ounces of an alloy that is 17% copper must be mixed with an alloy that is 20% copper to form 90 ounces of the desired alloy?

A. 21 ounces
B. 71 ounces
C. 69 ounces
D. 26 ounces


Answer: C

Mathematics

You might also like to view...

Using synthetic division, determine whether the numbers are zeros of the polynomial.5, -4; f(x) = x3 - 8x2 - 13x + 140

A. Yes; no B. No; no C. Yes; yes D. No; yes

Mathematics

Sketch the line.2x = y - 7

A.

B.

C.

D.

Mathematics

Solve the problem.Glenda wants to glue glitter over a piece of felt shaped like a parallelogram with a height of  and a base of  If the glitter costs  per ft2, how much will it cost to cover the felt?

A. $49.83 B. $4.15 C. $598 D. $16.61

Mathematics

Write in terms of i.2

A.
B.
C. - 
D.

Mathematics