Help me answer these algebraic word problems

Mathematics
Tutor: None Selected Time limit: 1 Day

Oct 4th, 2015

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i am working on your questions . please be patient. i am posting the solutions one by one.

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Oct 4th, 2015

35. let the no. of submarines hit be x

then the total no. of destroyers hit = (  10 -x)

so the total no. of points = 36

so (10 -x) * 5 + 3*x = 36

on solving we get x = 7

so the total no. of submarines hit = 7

Oct 4th, 2015

36. let the no of flags and pom pom be x

so the total budget = 5.20 * x + 0.80 *x+ 47 = 377

on solving we get x = 55

so the cheer leaders can buy 55 flags and pom poms

Oct 4th, 2015

37. let the no of pom poms be x

then the no of flags =2x


so the total budget = 5.20 * x + 0.80 * 2x = 340

on solving we get x = 50

so the cheer leaders can buy 100 flags and 50  pom poms


Oct 4th, 2015

38. let the weekly allowance be x

then money spent on golf = 0.5 x

money earned by car washing = 15

money left = 32.50

so x - 0.5x + 15 = 32.50

so x= 35

so her weekly allowance is $35

Oct 4th, 2015

39. let Fred have x

then david has 5x

Bill has x+15

now total = x+ 5x + x+ 15 = 260

on solving x = 35

so

Fred has 35

David has 175

Bill has 50

Oct 4th, 2015

it was lovely helping you. please contact for more help/ thank you.

Oct 4th, 2015

39. Wouldn't Bill have $85 bc twice twice the amount of 35 is 70 + 15 is 85

Oct 4th, 2015

Wouldn't Bill have $85 because twice the amount of 35 is 70 + 15 is 85 ??

Oct 4th, 2015

let Fred have x

then david has 5x

Bill has 2x+15

now total = x+ 5x + 2x+ 15 = 260

on solving x = 30.62

so

Fred has 30.62

David has 153.12

Bill has 76.24

Oct 4th, 2015

Why do the number of flags = 2x?

Oct 4th, 2015

because in question no. 37 they needed twice as many flags as no. of pom poms

Oct 4th, 2015

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Oct 4th, 2015
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Oct 4th, 2015
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