PLEASE HELP ASAP
1 answer:
Answer:
see below
Step-by-step explanation:
Let y = the total cleaning cost
Let x = the number of roots cleaned.
Therefore, if the cost is $22 per room, y = 22x
200 = 22x
Divide both sides by 22: 9 = x
Therefore, 9 rooms can be cleaned for $200
New equation: y = 22x + 40
200 = 22x + 40
Subtract 40 from each side: 160 = 22x
Divide both sides by 22: 7 = x
Therefore, 7 rooms can be cleaned for $200 if the carpet cleaners receive a $40 tip
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Answer:
D. 8
Step-by-step explanation:
The given diagram is a trapezium. We know that the consective sides of a trapezium are equal. so,
Putting the values of consecutive sides equal:
So, KI will be equal to LI
3x-7 = x+3
Putting the value of x in the equation of KI
3x-7
=3(5)-7
=15-7
=8
Hence, the correct answer is D. 8 ..