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Random Math
100
3x+2ab+3b-9x
-6x+2ab+3b
100
Angle 1 and 2 are complementary. Angle 2 equals twice what Angle 1 equals. How many degrees is Angle 2?
60. 2x+x=90 ; 3x=90 ; x=30. 2 times 30 equals 60.
100
2x(2-9)
4x-18x
100
Little Johnny has less than 10 dollars in his pocket. Translate into math.
x<10
100
A iPod that cost $120 is on sale for a discount of 21%. Tax is 3%. What is the final cost.
97.64 because: 120 times 21% equals 25.2 120 minus 25.2 equals 94.8 94.8 times 3% equals 2.84 94.8 plus 2.84 equals 97.64
200
2x-1x+5x
6x
200
Angle A is corresponding to Angle E. Angle E is 2(x+3) degrees. Angle A is 3(x+3) degrees. What is x?
x=3 2(3+3)=3(3+3) 6+6=9+3 12=12
200
3(3x+9)
9x+27
200
Pablo got has at least 5 bucks in his pocket. Translate into math.
5<x
200
x(3-1)=6x-24 What is x?
x=6 x(3-1)=6x-24 3x-x=6x-24 2x=6x-24 -4x=-24 x=6
300
7x-18x+12-9n
-11x+12-9n
300
Angle A and B are supplementary. Angle A is twice as much as B plus 20. How much is Angle B?
B=80 180=2B+20 160=20-180 160/2=B 80=B
300
8x(2+3)
40x because... 8x times 2 = 16x 8x times 3 = 24x 16x+24x=40x
300
Vanessa has less than 15 dollars in her pocket. She buys 3 notebooks for 2 dollars. Translate into math.
15-2>x
300
.698 translate into a percent.
69.8 <- D 2 decimal points left. -> P 2 decimal points right.
400
x-13x+3+2n
-12x+3+2n
400
Angle A and B are vertical. Angle B is 60 degrees. How much is Angle A?
Angle A=60 Vertical Angles are equal.
400
11(x-3)
11x-33
400
Mr. Tibbles has a library. He has 5 less than 2 times a number of books on one side. He has more than 50 books. Tranlate in math.
2x-5>50
400
Reflect (3,5) over the x-axis.
(3,-5) (x,y)->(x,-y)
500
7-12+13x
-5+13x
500
Angle A/and B are Alternate Exterior. Angle A equals 5(2x-3) and Angle B equals 5x. How many degrees is Angle A?
x=3 5(2x-3)=5x 10x-15=5x -10x -10x __________ -15=-5x -15/-5=3
500
9(9-9x)
81-81x
500
I have more than 2 dollars in my pocket.
2<x
500
1/2 inches=5 miles 7 1/2 inces= ___ miles
75 miles=7 1/2 inches 1 inch= 10 miles 7 times 10 equals 70 Plus 5 equals 75