At the bank, Derek made 7 withdrawals, each in the same amount. His brother, John, made 5 withdrawls, each in the same amount.
Let x be the amount of one of Derek's withdrawals
Each of John's withdrawals was $5 more than each withdrawal that Derek made.
x + 5 is t the amount of one of John's withdrawals
Derek made 7 withdrawals
So amount withdraw 7 times = 7x
John made 5 withdrawals
So amount withdraw 5 times = 5(x+5)
Both Derek and John withdrew the same amount of money in the end
(A) 7x = 5(x+5)
(B) Solve for x
7x = 5x + 25
Subtract 5x from both sides
2x = 25
Divide by 2
x = 12.5
(C) check your solution
we plug in 12.5 for x in 7x= 5x + 25
7(12.5) = 5(12.5) + 25
87.5 = 62.5+ 25
87.5 = 87.5
(D) Each brother withdrawal 87.5 dollars
Answer:
x = 3
Step-by-step explanation:
1kg=1000g so if it would be 80% it would be 20% left since 1000 is a proper percent we could determine that 800g
Is lost and we have 200g left or 2/10KG
Do you mean what are axes?
Answer:
30
Step-by-step explanation:
2 out of 30 were defective. The percentage rate is found by dividing 2 by 30 and then multiplying by 100, so that would be:
Percentage Defective Rate = 2/30 * 100 = 6.67%
Now, we have to find the expected defective number of bulbs in a total of 450. So we find 6.67% of those. That would be the decimal (0.0667) multiplied by 450:
0.0667 * 450 = 30
So, out of 450 bulbs, 30 would be expected to be defective
