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Tutors Answer Your Questions about Distributive-associative-commutative-properties (FREE)
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(22740)   |
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(7384)  |
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(5328)  |
Question 615958: two pumps were required to pump the water out of a submerged area after a hurricane. Pump A,the large of the two pumps can pump the water out in 36 hours,whereas it would take pump B 180 hours. both pumps were working for the first 9 hours until pump A broke. how long did it take pump B to pump out the remaining water?
Click here to see answer by scott8148(6628)  |
Question 615958: two pumps were required to pump the water out of a submerged area after a hurricane. Pump A,the large of the two pumps can pump the water out in 36 hours,whereas it would take pump B 180 hours. both pumps were working for the first 9 hours until pump A broke. how long did it take pump B to pump out the remaining water?
Click here to see answer by ankor@dixie-net.com(22740) |
Question 619144: Can someone please help me solve these two problems. I am so stumped!!
1.(6x-9y)(6x+9y) I should be using FOIL right? But the same numbers have me stumped!!
2.The area of the rectangular swimming pool is given by 4x^2+19x+12 ft^2 one side is given by 4x+3 feet. What is an algebraic expression for the other side of length of pool? Simplify this and include correct units.
Click here to see answer by richard1234(7193)  |
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Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455, 4456..4500
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