Solve the equation by first clearing the decimals. -2.5 x–1.1 = 1.9
Solve the equation by first clearing the decimals. 32.1 = 5.4x + 5.1
Maureen O'Brien teaches a drafting and architecture class in the evening. She charges a materials fee of $14.00 plus $8.50 per hour of instruction. How many hours of instruction must Mrs. O'Brien teach in order to collect $116.00? Model the situation using an equation, then solve the equation.
Solve the equation by first clearing the decimals. 32.1 = 5.4x + 5.1
Maureen O'Brien teaches a drafting and architecture class in the evening. She charges a materials fee of $14.00 plus $8.50 per hour of instruction. How many hours of instruction must Mrs. O'Brien teach in order to collect $116.00? Model the situation using an equation, then solve the equation.
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1#
-2.5x= 1.9 + 1.1
-2.5x= 3
-3=2.5x
-1.2=x
2#
32.1=5.4x+5.1
32.1-5.1=5.4x
27=5.4x
.5=x
3#
14+8.5x=116
8.5x=116-14
8.5x=102
x=12
-2.5x= 1.9 + 1.1
-2.5x= 3
-3=2.5x
-1.2=x
2#
32.1=5.4x+5.1
32.1-5.1=5.4x
27=5.4x
.5=x
3#
14+8.5x=116
8.5x=116-14
8.5x=102
x=12