Exponents and Scientific Notation
42 x 46
48
Write an equation for the sentence below.
The sum of a number, n, and 5 is 7.
n + 5 = 7
x / 3 = 6
x = 18
5
y = -4x + 6
Slope: -4
Y-intercept: 6
714/75
79
Write an equation for the sentence below:
The sum of 15 and 6 times a number, t, is 81.
4x - 6 = 22
x = 7
The square root of 256
16
The slope and y-intercept of the line below:
y = -3 + 1/2x
Slope: 1/2
Y-intercept: -3
(59 x 84)3
527 x 812
Write an equation for the situation below:
An electrician charges $40 to come to your house. She also charges $55 for every hour she works. The electrician charges you a total of $190. (use h for hours)
55h + 40 = 190
16 = -5x + 6
x = -2
Estimate the square root of 22 (one decimal place)
4.7
5x + y = 4
y = -5x + 4
6-4
1/64
Write an equation for the situation below:
A taxi charges $1.75 plus a fee of $0.75 for each mile traveled. The total cost of the ride is $4.75. (use m for miles traveled)
4.75 = 1.75 + 0.75m
5x + 17 = x + 1
x = -4
Estimate the square root of 98 (one decimal place)
9.9
Write the following equation in slope-intercept form:
6x + 3y = 9
y = -2x + 3
x-3y4z2
(y4z2)/x3
Write an equation for the sentences below:
A number s is subtracted from 7. When the result is divided by 3, your final answer is 2.
(7-s)/3 = 2
4(x + 2) - 5(2x + 6) = 8
x = -5
Estimate the square root of 5 (two decimal places)
2.24 or 2.25
Write the following equation in slope-intercept form:
3x - 2y = -8
y = (3/2)x + 4