Solve.An order consists of 64 screws. Of these, #8 machine screws make up five less than twice as many #6 machine screws. If the #8 screws cost 3 cents each and the #6 screws cost 5 cents each, what is the total cost of the order?
Fill in the blank(s) with the appropriate word(s).
$2.38
| e + s = 64 | Substitute: | 2s - 5 + s = 64 |
| e = 2s - 5 | 3s = 69 |
| ? | s = 23 |
3(41) + 5(23) = 238 cents = $2.38
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