Answer:
<u>y = - 6.375</u>
Step-by-step explanation:
Step 1:
4 ( y - 3y ) - 19 = 32 Equation
Step 2:
4y - 12y - 19 = 32 Multiply
Step 3:
- 8y - 19 = 32 Combine Like Terms
Step 4:
- 8y = 51 Add 19 on both sides
Step 5:
y = 51 ÷ - 8 Divide
Answer:
<u>y = - 6.375</u>
Hope This Helps :)
Answer:
20
Step-by-step explanation:
The cost of the x mangoes was ...
c = 10(x/4)
The revenue from the sale of mangoes was ...
r = 20(x-5)/5
The profit is the difference between revenue and cost:
10 = r - c = 20(x -5)/5 -10(x/4) = 1.5x -20 . . . . substitute and simplify
30 = 1.5x . . . . . add 20
20 = x . . . . . . . .divide by 1.5
The trader bought 20 mangoes.
_____
<em>Check</em>
He paid 20(10/4) = 50 naira. He sold the 15 good mangoes for 20/5(15) = 60 naira, so made a 10 naira profit.
To determine this in a very fast and efficient way, divide the numerator by the denominator.
904 / 100 = 9.04
Now since we have our hundredths place as 4, divide 100 by 4 to find the fraction (0.04 is the rate).
100 / 4 = 25.
For every 0.04 we gain, we gain 1/25.
D.) 9 1/25 is your answer.
I hope this helps!
Answer:
The expression represent the expected cost of the cell phone bill next year is: c=1.075b.
Step-by-step explanation:
With the information provided, you can say that the expected cost of the cellphone bill next year would be equal to the current bill multiplied for 1 plus the increase in decimal numbers, so the increased amount is added to the current cost. The equation would be:
c=b*(1+0.075)
c=b*1.075
c=1.075b
According to this, the answer is that the expression represent the expected cost of the cell phone bill next year is: c=1.075b.
Using the slope-intercept form, y=mx + b to find the slope I found that correct answer is 2/5.