Answer:
The numbers are -16,-15 and -14
Step-by-step explanation:
Let
x ----> the first number
x+1 ----> the second number
x+2 ---> the third number
we know that
(1/4)x+(1/5)(x+1)=(1/7)(x+2)-5
Multiply by (4*5*7) both sides
35x+28(x+1)=20(x+2)-140*5
35x+28x+28=20x+40-700
43x=-688
x=-16
so
x+1=16+1=-15
x+2=-16+2=-14
The numbers are -16,-15 and -14
Express incrase as percent of original
incrase=new-original=680-500=180
percent increase=increase/original times 100=180/500 times 100=0.36 times 100=36
36% increase
Answer:
Step-by-step explanation:
Note: y = 10 when x = 5 is already given, must be find x for y = 5.
<u>y = k/x is the formula, using the given values finding the constant:</u>
<u>So for y=5 we have:</u>
Answer:
0
Step-by-step explanation:
Answer:
60 + 2.5n ≥ 150
2.5n ≥ 90
n ≥ 36 She must clean 90 tables to earn at least $150.
Step-by-step explanation:
She earns $2.50 for each table she cleans so n represents the number of tables she cleans. You add that to $60. At least must mean that the inequality has to be equal to or bigger than 60 + 2.5n.
Now we just have to solve, which I do for you above in the 'Answer' section.
I hope this helps you!! ^-^