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rfer answered: 12650 problems
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Angles/361642: Angle ABD and angle BDE are supplementary. Find the measure of both angles if
measure angle ABD = 5x and measure of angle BDE = 17x -18.
1 solutions

Answer 257800 by rfer(12654) on 2010-10-25 20:27:47 (Show Source):

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5x+17x-18=180
22x=198
x=9
5x=45
17x-18=135

Angles/361648: Angle ABD and angle BDC are complementary. Find the measure of both angles if
measure angle ABD = (4y + 5) and measure angle BDC = (4y + 8).
1 solutions

Answer 257799 by rfer(12654) on 2010-10-25 20:25:20 (Show Source):

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4y+5+4y+8=90
8y=77
y=9.625
4y+5=43.5
4y+8=46.5

Distributive-associative-commutative-properties/361655: use the distributive property to add parentheses and write these expressions as a product of a number and a sum. expressions written like this are said to be in factored form.
*= multiplication
a) 8*3+8*2
b) 31*4+31*6
c) 25*8+25*12
d)7*131+7*86
1 solutions

Answer 257797 by rfer(12654) on 2010-10-25 20:22:25 (Show Source):

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A)
8(5)
B)
31(10)
you try the others

Angles/361649: an angle measures 15 degrees more than its complement. find the measures of the two angles. also, show the initial equation used.
1 solutions

Answer 257796 by rfer(12654) on 2010-10-25 20:19:17 (Show Source):

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x+x+15=90
2x=75
x=37.5
x+15=52.5

Angles/361643: Angle ABD and angle BDE are supplementary. Find the measure of both angles if
measure angle ABD = 12x - 12 and measure of angle BDE = 3x + 48.
1 solutions

Answer 257794 by rfer(12654) on 2010-10-25 20:16:20 (Show Source):

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12x-12+3x+48=180
15x=144
x=9.6
12x-12=103.2
3x+48=76.8

Travel_Word_Problems/361634: if a car is driving 30 mph, how far will it have gone in 3 hours?
1 solutions

Answer 257792 by rfer(12654) on 2010-10-25 20:13:40 (Show Source):

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90 mi

Angles/361641: An angle's measure is 3 times the measure of its complement. Find the measure of the angle and the measure of the complement.
Choose one answer.
a. 52 degrees, 38 degrees
b. 76 degrees, 14 degrees
c. 68 degrees, 22 degrres
d. 67.5 degrees, 22.5 degrees

1 solutions

Answer 257790 by rfer(12654) on 2010-10-25 20:12:32 (Show Source):

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x+3x=90
4x=90
x=22.5
3x=67.5
(D)

Money_Word_Problems/361637: Danny has $2,100 in his savings account. He receives 0.78% anhual simple interest. If he makes no further deposits or withdrawals, how much money will he earn in simple interest in 3 yrs.
1 solutions

Answer 257788 by rfer(12654) on 2010-10-25 20:10:10 (Show Source):

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I=2100*0.0078*3
I=49.14

Angles/361639: Find the complement of angle B if angle B measures (6x-5) degrees.
1 solutions

Answer 257787 by rfer(12654) on 2010-10-25 20:07:20 (Show Source):

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x+6x-5=90
7x=95
x=13.6
6x-5=76.4

Angles/361568: an angle is 3 more than twice its complement. find the supplement of the angle.
1 solutions

Answer 257768 by rfer(12654) on 2010-10-25 18:56:36 (Show Source):

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x+2x+3=90
3x=87
x=29
180-29=151

Pythagorean-theorem/361577: what is the slope of y=2x+3

1 solutions

Answer 257767 by rfer(12654) on 2010-10-25 18:50:04 (Show Source):

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y=mx+b
m = slope 2

Expressions-with-variables/361572: how do u find the third, fifth, and tenth termsof the sequence described by each rule.
A(n)=4+(n+1)(3)
1 solutions

Answer 257766 by rfer(12654) on 2010-10-25 18:49:18 (Show Source):

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A(n)=4+(3+1)(3)
A(n)=4+4*3
A(n)=16
------------------
A(n)=4+(5+1)(3)
A(n)=4+6*3
A(n)=22
you try the other one.
Bob

Polynomials-and-rational-expressions/361569: Simplify. -16 + 10 - 14 - (-17)
1 solutions

Answer 257765 by rfer(12654) on 2010-10-25 18:44:30 (Show Source):

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-3

Numbers_Word_Problems/361552: Translate into an equation and solve.
A pro shop in a bolwing alley drops the price of bowling balls 24% to a sale price of $34.20.What was the former price?
-please show all work to help me understand.
-Thanks
1 solutions

Answer 257764 by rfer(12654) on 2010-10-25 18:43:26 (Show Source):

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34.20 is 76% of the original price
34.20/0.76=$45

Numbers_Word_Problems/361564: I am thinking of two numbers. Their sum is 17' and one number is 5 more than the other. What are the two numbers?
1 solutions

Answer 257762 by rfer(12654) on 2010-10-25 18:41:27 (Show Source):

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x+x+5=17
2x=12
x=6
x+5=11

Age_Word_Problems/361557: My sister is 10 years older than i am. the sum of are ages is 28. find are ages
1 solutions

Answer 257761 by rfer(12654) on 2010-10-25 18:40:09 (Show Source):

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x+x+10=28
2x=18
x=9 yrs
x+10=19 yrs

Linear_Equations_And_Systems_Word_Problems/361560: Two cars leave a city and head in thesame direction. After 4 hours, the faster car is 16 miles ahed of the slower car. The slower car has traveled 212 miles. Find the speed of the two cars.
1 solutions

Answer 257760 by rfer(12654) on 2010-10-25 18:35:42 (Show Source):

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212/4=53 mph
228/4=57 mph

Numbers_Word_Problems/361554: Translate into an equation and solve.
An appliacne store drops the price of a certain type of tv 18% to a sale price of $410.What was the former price?
-please show all work to help me understand.
-Thanks
1 solutions

Answer 257759 by rfer(12654) on 2010-10-25 18:34:03 (Show Source):

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410 is the difference between 100% and 18%
100-18=82%
410/0.82=500

Numbers_Word_Problems/361551: Translate into equations and solve.
1.Six more than nine times a number is the same as two less than ten times the number.What is the number?
-please show your work to help me understand.
-thanks
1 solutions

Answer 257758 by rfer(12654) on 2010-10-25 18:32:01 (Show Source):

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9x+6=10x-2
is the same as means equals
subtract 9x from both sides
6=x-2
add 2 to both sides
8=x
-----------------
9*8+6=10*8-2
78=78

Numeric_Fractions/361474: Multiply.
(x^2 − 2x + 5)(5x − 6)

1 solutions

Answer 257756 by rfer(12654) on 2010-10-25 18:28:01 (Show Source):

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5x^3-10x^2+25-6x^2+12x-30
5x^3-16x^2+12x-5

Percentage-and-ratio-word-problems/361504: Justin works as a car salesman where he earns 8% commission on his sales and no weekly salary. What will his weekly sales have to be to earn $3280 for the week?
1 solutions

Answer 257755 by rfer(12654) on 2010-10-25 18:24:15 (Show Source):

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3280/0.08=41,000

expressions/361509: 6-4d=16-9d
1 solutions

Answer 257754 by rfer(12654) on 2010-10-25 18:22:40 (Show Source):

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5d=10
d=2

Equations/361544: -5-(15y+1) = 2(7y-16) - y
1 solutions

Answer 257753 by rfer(12654) on 2010-10-25 18:20:39 (Show Source):

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+75y+5=14y-32-y
62y=-37
y=-37/62

Inequalities/361511: please show me how to solve this problem
7/12 > -5/6d
1 solutions

Answer 257751 by rfer(12654) on 2010-10-25 18:17:41 (Show Source):

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divide both sides by -5/6
which means invert and multiply
7/12*-6/5>d
-42/60>d
-7/12>d

Equations/361523: If I have a perimeter of 254 how do I turn that into yards?
1 solutions