document.write( "Question 993429: Hello can you help me with my algebra 1 homework, i have 3 problems i'm stumped on.\r
\n" ); document.write( "\n" ); document.write( "1) you charge $2 plus $0.50 per child for every hour you babysit. You earn $3.50 an hour when you watch the Crandell children. How many children are in the family?\r
\n" ); document.write( "\n" ); document.write( "2) There are 2 numbers whose sum is 72. 2 number is twice the other. what are the numbers?\r
\n" ); document.write( "\n" ); document.write( "3) Ryan ans Steve worked as electricians at $14 and $12 per hour respectively. One month Ryan worked 10 hours more than Steve. If their total income for the month was $3520, how many hours did each work during the month?\r
\n" ); document.write( "\n" ); document.write( "Thanks alot for your help.
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Algebra.Com's Answer #612703 by addingup(3677)\"\" \"About 
You can put this solution on YOUR website!
1)Your rate per hour is a flat fee of $2 plus 0.50 per child. Let's call the number of children n:
\n" ); document.write( "2+0.50n= 3.50 subtract 2 from both sides
\n" ); document.write( "0.50n= 1.50 divide both sides by 0.50
\n" ); document.write( "n= 3 The Crandells have 3 kids.
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\n" ); document.write( "2) There are 2 numbers whose sum is 72. One number is twice the other. Let's call the smaller number x, and the problem says the other number is 2x (twice the other):
\n" ); document.write( "x+2x= 72 Add the x:
\n" ); document.write( "3x= 72 Divide both sides by 3
\n" ); document.write( "x= 24 is the smaller number, and the other is 2×24= 48
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\n" ); document.write( "3) Ryan & Steve make $14 and $12. One month Ryan worked 10 hours more than Steve. If their total income for the month was $3520, how many hours did each work.
\n" ); document.write( "Let's call Steve's hours x and Ryan's, the problem says, is x+10
\n" ); document.write( "12x+14(x+10)= 3,520 Multiply on left:
\n" ); document.write( "12x+14x+140= 3,520 Add x on left and subtract 140 on both sides
\n" ); document.write( "26x= 3,380 Now divide both sides by 26
\n" ); document.write( "x= 130 are the hours Steve worked. and Ryan worked 10 hours more: 130+10=140
\n" ); document.write( "Proof
\n" ); document.write( "130×12= 1560
\n" ); document.write( "140×14= 1960
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\n" ); document.write( "=======3,520 We have the correct answer
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