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Tutors Answer Your Questions about Distributive-associative-commutative-properties (FREE)
Question 590967: a12-quart cooling system is tested and found filled with a 60% antifreeze solution. The ideal mixture should be a 50% antifreeze solution. How many quarts of solution needs to be drained and replaced with pure water to reach the ideal mixture?
Click here to see answer by ad_alta(240)   |
Question 592241: 60(m-15)this is the expression to solve the problems. I sure as heck cant get it to work.
A duplicating machine can produce 60 copies per minute, but the machine takes 15 minutes to warm up before any copies can be made.
1. If this machine produced 300 copies how long was it on?
2. If this machine produced 2500 copies how long was it on?
Click here to see answer by scott8148(6628)  |
Question 592497: Please tell me HOW to work this kind of problem!!
``60(m-15)this is the expression to solve the problems. I sure as heck cant get it to work.
A duplicating machine can produce 60 copies per minute, but the machine takes 15 minutes to warm up before any copies can be made.
1. If this machine produced 2500 copies how long was it on?
I need this problem to be worked step by step. I cant grasp it at all. Please helP!!!
Click here to see answer by mananth(12270)  |
Question 604072: carmen had $130 more than her sister, Rosa. rosa had twice as much money as their youngest sister, Zoe. If their mother gave carmen $60 and rosa $80, Carmen would have twice as much money as rosa. what was the total amount of money they had in the beginning?
I keep getting a negative number.
zoe =x
rosa=2x
carmen= 2x+130
SO....
2(2x+80)=2x+30+60
4x+160=2x+90
4x-2x+160=2x-2x+90
2x+160=90
2x+160-160=90-160
2x=-70
x=-35
what did I do wrong???
Click here to see answer by ankor@dixie-net.com(15657)  |
Question 605636: For my homework I need to use the distributive property to write 7x^2-11x in equivalent form as a product of two linear factors. Basically I don't have any idea what any of this means. Please explain the distributive property, and linear factors.
Click here to see answer by nerdybill(6962)  |
Question 611476: 1.what is equivilent to 6xmxmxm?
2.Kara earns $54 for 9 hours of babysitting .At that rate , how long would she have babysit to earn $114.
a.6 hours
b.10 hours
c.19 hours
d.28 hours
3.what is the value for x=
for this problem ? -5x- 15=30
Click here to see answer by radh(108)  |
Question 611472: which of the following demostrates cummutative property?
a.2x35x5=2x5x35
b.2x35x5=2+5+35
c.2x35x5=2(30x5+5x5)
d.2x35x5=(2x30+2x5)x5
2.which of the following show distributive property?
a.2x358=(2x300)x(2x50)x(2x8)
b.2x358=(2x300)+(2x50)+(2+8)
c.2x358=(2+300)x(2+58)x(2+8)
d.2x358=(2+300)+(2+50)+2+8
Click here to see answer by KMST(1869)  |
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