Translate to an algebraic equation and solve :
Problem 1 :
n divided by 8 is -16
Solution :
n/8 = -16
n = -16(8)
n = -128
Problem 2 :
n divided by six is -24
Solution :
n/6 = -24
n = 6(-24)
n = -144
Problem 3 :
m divided by -9 is -7
Solution :
m/-9 = -7
m = (-9)(-7)
m = 63
Problem 4 :
m divided by -7 is -8
Solution :
m/(-7) = -8
m = (-8)(-7)
m = 56
Problem 5 :
The quotient of f and -3 is -18
Solution :
f/(-3) = -18
f = (-3)(-18)
f = 54
Problem 6 :
The quotient of f and -4 is -20
Solution :
f/(-4) = -20
f = (-4)(-20)
f = 80
Problem 7 :
The quotient of g and twelve is 8
Solution :
g/12 = 8
g = (8)(12)
g = 96
Problem 8 :
The quotient of g and nine is 14
Solution :
g/9 = 14
g = (14)(9)
g = 126
Problem 9 :
Three-fourths of q is 12
Solution :
3/4q = 12
q = (12×4)/ 3
q = 16
Problem 10 :
Two-fifths of q is 20
Solution :
2/5 of q = 20
(2/5)q = 20
2q/5 = 20
q = (20×5)/2
q = 50
Problem 11 :
Seven-tenths of p is -63
Solution :
7/10(p) = -63
p = (-63×10)/7
p = -90
Problem 12 :
Four-ninths of p is -28
Solution :
4/9(p) = -28
p = (-28×9)/4
p = -63
Problem 13 :
m divided by 4 equals negative 6
Solution :
m/4 = -6
m = (-6)(4)
m = -24
Problem 14 :
The quotient of h and 2 is 43
Solution :
h/2 = 43
h = (43)(2)
h = 86
Problem 15 :
Three-fourths of z is the same as 15
Solution :
3/4z = 15
z = (15×4)/3
z = 20
Problem 16 :
The quotient of a and 2/3 is 3/4
Solution :
a/(2/3) = 3/4
a = (3×2)/(4×3)
a = 1/2
Problem 17 :
The sum of five-sixths and x is 1/2
Solution :
5/6 + x = 1/2
x = 1/2 – 5/6
x = -1/3
Problem 18 :
The sum of three-fourths and x is 1/8
Solution :
3/4 + x = 1/8
x = 1/8 – 3/4
x = -5/8
Problem 19 :
The difference of y and one-fourth is -1/8
Solution :
y – 1/4 = -1/8
y = -1/8 + 1/4
y = 1/8
Problem 20 :
The difference of y and one-third is -1/6
Solution :
y – 1/3 = -1/6
y = -1/6 + 1/3
y = 1/6
Problem 21 :
The temperature of dry ice is −109.3°F. This is 184.9°F less than the outside temperature. What is the outside temperature?
Solution :
The temperature of dry ice = −109.3°F.
Let x be the outside temperature.
x + 184.9 = -109.3
x = -109.3 - 184.9
x = -294.2
Problem 22 :
A company makes a profit of $1.38 million. This is $2.54 million more than last year. What was the profit last year?
Solution :
Let x be the amount in last year.
Profit = 1.38
x + 2.54 = 1.38
x = 1.38 - 2.54
x = -$1.16
Problem 23 :
The difference in elevation of a helicopter and a submarine is 18 1/2 meters. The elevation of the submarine is − 7 3/4 meters. What is the elevation of the helicopter?
Solution :
Let x be the elevation of helicopter.
Elevation of submarine = -7 3/4
x - (-7 3/4) = 18 1/2
x + 7 3/4 = 18 1/2
x + 31/4 = 37/2
x = 37/2 - (31/4)
x = (74 - 31)/4
x = 43/4
x = 10 3/4
So, the elevation of the helicopter is 10 3/4.
Problem 24 :
The total height of the Statue of Liberty and its pedestal is 153 feet more than the height of the statue. What is the height of the statue?
Solution :
Let x be the height of statue.
The total height of the Statue of Liberty + height of pedestal = 305 ft
Height of pedestal = x + 153
x + x + 153 = 305
2x + 153 = 305
2x = 305 - 153
2x = 152
x = 152/2
x = 76 ft
So, the heigth of statue is 76 ft.
Problem 25 :
Your first jump is 50 1/6 feet higher than your second jump. Your first jump reaches −200 2/5 feet. What is the height of your second jump?
Solution :
Let x be the height of the second jump.
First jump = x + 50 1/6
x + 50 1/6 = -200 2/5 feet
x + 301/6 = -1002/5
x = -1002/5 - 301/6
x = (-6012 - 1505)/30
x = -7517/30
x = -250 17/30 ft
May 21, 24 08:51 PM
May 21, 24 08:51 AM
May 20, 24 10:45 PM