Simplify the following expression:
2a + a + 4a
7a
Evaluate.
120 - (3 x 5) + 42
121
Solve
-4 ( 0.4 )=
-1.6
Find the probability of rolling a 2, 3, or 4 on a regular number cube. Express your answer as fraction, decimal and percent.
1/2, 0.5, 50%
12% of 230
27.6
Find two consecutive natural numbers that √11 lies between.
3 and 4
What is the value of v?
-5 + 4v = 19
v = 6
Translate this sentence into an equation.
Pablo's height increased by 8 is 42.
Use the variable p to represent Pablo's height.
p + 8 = 42
Find the value of w
63 = 3w
w = 21
What is the sum of all multiples of 5 between 1 and 50?
275
Simplify the following expression:
7x2 - 8 + 12x - 4x2 -9
3x2 + 12x -17
Translate this sentence into an equation.
48 is the product of Constanza's height and 3.
Use the variable c to represent Constanza's height.
48 = 3c
(3x101) + (6.4x102)
6.7x102
This is the measure of the last angle in a triangle when the first angle measures 119 degrees, and the second angle is 43 degrees.
18 degrees
Brooklyn is serving peach cobbler to her friends. She serves 4/12 of the pie. What fraction is left?
8/12
If x = 2 and v = 3x, then the value of
(2v − 5) − (2x − 5) is:
8
Find the cubic root of (-343)
-7
A clock gains 5 minutes every hour. If it is set correctly at 8:00 a.m. , what time will it show at 2:00 p.m. ?
2:30 p.m.
Simplify
3/7 u + 1/2 u=
13/14u
A library has 3.2×105 books, this year it received 1.5×104 from a charity event. How many books does the library have now?
3.35×105
Simplify
√50 + √18=
8√2
Simplify
-7w -2 (-3x + 7w) + 5x=
-21w + 11x
2√6 + 3√54
11√6
Solve. Leave the first to decimals in your final answer.
(8.9 x 109) / (8.4 x 107)
1.05 x 102
Twice a number increased by 24, the result is 60. What is the number?
18