An ad claims that in a recent poll, three out of four dentists recommended brushing with a certain brand of toothpaste. If there were 92 dentists polled, how many favored this brand?
100
y=2x+7
Write an equation in slope-intercept form of the line passing through the given points: (0,7), (1,9)
100
p=$1.25
m.p=$1.50
Solve using twp equations:
If you buy six pens and one mechanical pencil, you'll get only $1 in change from your $10 bill. But if you buy four pens and two mechanical pencils, you'll get $2 change. How much does each pen and pencil cost?
200
t=8
l=16
Lisa walked 8 km more than Tim. Lisa walked twice as far as Tim. How far did each walk?
200
x=8
2x-1
____=5 Solve..
3
200
625%
45 is what percent of 7.2?
200
+2
What is the slope of the line: 2x-y=-4
200
s=7
t=5
Solve by using the substitution method:
s=t+2
2t+s=17
300
4x+6y
Simplify x+2y+3x+4y
300
-2
Evaluate if x=4 and y=2
x+y+(-8)
300
5.812 * 10^10
Write 58,120,000,000 in scientific notation.
300
D={1940, 50, 60, 65}
R={30, 60, 125, 200}
State the domain and range of the function shown:
(1940, $30), (1950, $60), (1960, $125), (1965, $200)
300
3 (radical sign) 7
Simplify (radical sign) 63
400
c=-7
Simplify 5c+7=-28
400
6y^2-13y-28
Write as a polynomial:
(2y+7)(3y-4)
400
a) NO
b) YES
State whether each ordered pair is a solution of the given equation.
4m-5n=9
a) (6,7)
b) (6,3)
400
5, 6, 7
State the range of the function: x+5, D={0,1,2}
400
+or- 5
Solve x^2=25
500
x=-12
2(x-6)=3x
500
2.5 or 2
__
5
6n 3
____=____
5 1 Solve...
500
3
_
-2
Find the slope of the line through the given points.
(-4,2), (-6,5)
500
46 & 73
Find the values for the function h(a)=3a^2-2:
h(4)= h(-5)=
500
3428.6
Use I=prt to find the missing quantity.
I= $1200, r= 5%, and t= 7 years.