Probability
A number cube is rolled, find the probability that an even number is rolled.
3/6 or 1/2
The ratio of snickers to Hershey's bar in the jar is 1:3. There are 6 snickers in the jar. How many Hershey bars are there?
18
3x - 7 = 26. Solve for x
x=11
If x: y = 2:3, then what should be 2x + 3y: 4x + 5y?
13:23
Solve for x: 2x + 3 > 7
2
Two coins are tossed, find the probability that two heads are obtained
1 / 4
The ratio of cheese bites that Jaxson has to how much Kevin has is 2:3. how many cheese bites does Kevin have if Jaxson has 8?
12 Cheese Bites
The ages of Roony and Herald are 5x and 7x. If four years later, the sum of their ages will be 56 years. solve for x.
x = 4
If a 6 feet tall tree casts a shadow of 15 meters, how tall a shadow will a pole 30 meters high cast?
75 meters
Solve for y: y/4 - 5 ≤ -3
8
Which of these numbers cannot be a probability?
a) -0.00001
b) 0.5
c) 1.001
d) 0
e) 1
f) 20%
a) and c)
The ratio of correct answers that Dumbo has to how many correct answers Jones has is 1:9. Dumbo gets 2 questions right. How many questions do Jones get correct?
18 Questions Right
solve for x: 2 (3x + 1) + 3 (5x + 2) = x - 1
x = -9/20
Bracelets are on sale for 3 for $15. How much do 5 bracelets cost?
$25
Solve for z: -3z + 2 ≥ 11
-3
Two dice are rolled, find the probability that the sum is
a) equal to 1
b) equal to 4
c) less than 13
The ratio of grapes to oranges in a fruit bowl is 18:3. If there are 24 grapes, how many oranges are there?
a)72
b)4
c)5 1/2
b)
Solve for x: 2x - y = 5, 3x + 2y = 11
x = 3
Is 3/8 = 9/32 a proportion?
no
Solve for a: 5a - 2 < 18
4
A die is rolled and a coin is tossed, find the probability that the die shows an odd number and the coin shows a head.
1/4
To make Positively Purple paint you need to mix red, yellow and blue paint in the ratio 2:3:4. If I have 510 ml of yellow paint, how much red paint will I need to make a tin of Positively Purple paint?
a)680 ml
b)170 ml
c)340 ml
c)
It is given that x is the one side of the chessboard and it is smaller than its perimeter by 18 inches. Form an equation and solve for x?
x = 6
If 3 pounds of apples cost $6, how much would 5 pounds of apples cost?
10
Solve for b: -2b + 6 > 10