3(72+ 5) ÷ 6 - 3
a. 49/3
b. 26
c. 23
d. 24
d. 24
3(72+ 5) ÷ 6 - 3
3(49 + 5) ÷ 6 - 3
3(54) ÷ 6 - 3
162 ÷ 6 - 3
162 ÷ 6 - 3
27 - 3
= 24
Solve for x.
2(3x - 1) - 2(x + 5) = 12
a. 0
b. 6
c. 4
d. 5
b. 6
2(3x - 1) - 2(x + 5) = 12
6x - 2 - 2x - 10 = 12
6x - 2x - 2 - 10 = 12
4x - 12 = 12
4x - 12 + 12 = 12 + 12
,4x = 24
(4x/4) = (24/4)
1x = 6
x=6
92 pounds is equal to how many kilograms? Round to the nearest hundredth if necessary.
a. 42.41
b. 102.44
c. 24.21
d. 41.82
d. 41.82
1 kilo = 2.2 pounds
1kilogram/2.2 pounds = x kilo/92 pounds
(2.2 × x) = (1 × 92)
2.2x = 92
2.2x/2.2 = 92/2.2
x = 41.81818
Solve 68.567 - 13 - 2.43.
a. 53.137
b. 68.311
c. 83.997
d. 43.576
a. 53.137
2x + 5y = 19 4x + 3y = 17
, What are the values of x and y?
a. x = 17 and y = -3
b. x = 3 and y = 2
c. x = 2 and y = 3
d. x = -3 and y = 17
c. x = 2 and y = 3
-2 (2x + 5y) = -2 (19)
-4x - 10y = -38
4x + 3y = 17
-4x - 10y = -38 - 4x + 3y = 17
0x - 7y = -21
-7y = -21
(-7y/-7 ) = (-21/-7 )
1y = 3 y = 3
2x + 5y = 19
2x + 5(3) = 19
2x + 15 = 19
2x + 15 - 15 = 19 - 15
2x = 4
(2x/2 ) = (4/2 )
1x = 2 x = 2
Convert 21.4 °C into °F.
a. 61.56 °F
b. 70.52 °F
c. 58.14 °F
d. 66.92 °F
b. 70.52 °F