A=#nickels, b=#quarters
5a + 25b = 410 total value
5(a + 5b) = 410
a + 5b = 82
a + b = 30 total no. of coins
subtracting . . . 4b = 52
thus b = 13 and a = 17
13 quarters and 17 nickels = 13*25 + 17*5 = 410 = $4.10
Answer:
x( x + 8) = 256
Step-by-step explanation:
let one side be x
if x is 8 yards longer than the other side, then the other side is x + 8
so, x( x + 8) = 256 equations model the possible dimensions of the playground
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The central angle AOC subtended by arc AC has measure equal to 46% of a complete revolution, or , so .
40 students
Explanation: 5/9 of 360 students is 200 students who did bring lunch. 360-200=160 students who bought lunch. You then subtract 200-160 which gives you.. 40
Answer:
x = 103⁰
Step-by-step explanation:
127+40+90+x = 360⁰
257+x = 360⁰
x = 360⁰- 257⁰
x= 103⁰