Answer:
A reduction of 64.3 percent
Step-by-step explanation:
Initial price of Brent crude oil=$140 per barrel
Final price of Brent crude oil=$50 per barrel
The percentage change in price=((Final price-Initial price)/(Initial price))×100
(50-140)/140=-0.6429×100=-64.29
Rounding off to tenth of a percent=10/100=0.1
-64.29=-64.3 since 64.29 is nearer to 64.3 than 64.2
-64.3 percent implies a reduction of 64.3 percent
There was a reduction of 64.3 percent
Answer:
28 units
Step-by-step explanation:
P= 4a
The perimeter of a square is divisible by 4 if side length is a whole number
From the given list only 28 is divisible by 4 so just guessing this is the one
Answer:
Step-by-step explanation:
We know that for principal amount P , time period T and rate of interest , simple interest is given by .
Here ,
To find : simple interest rate i.e.,
On putting values of in formula , we get
Now we need to round off the answer to the nearest tenth .
So, simple interest rate is % = =
Answer:
Equation: 2x + 5 + 6x + 15 = 92
Solution: x = 9
m∠A =23° m∠B = 69°
Step-by-step explanation:
measure of ∠B = 3(2x + 5) = 6x + 15
The sum of the angles = 92 = 2x + 5 + 6x + 15
92 = 8x + 20
72 = 8x
x = 9
m∠A = 2(9) + 5 = 18 + 5 = 23
m∠B = 6(9) + 15 = 54 + 15 = 69
Check: 23 + 69 = 92 and 23(3) = 69
Answer:
<u>The correct answer is </u>
<u>C. k+d=130
</u>
<u>7k = 3d</u>
<u>Number of kids Dr. Irvine see in a week is 39.</u>
Step-by-step explanation:
1. Let's review the information given to answer the question correctly:
Number of patients Dr. Irvine see in a week = 130
Radio of kids to adults = 3:7 or 3/7
Number of Kids = k
Number of adults = d
2. Let's find the equations system that should be set up to find out how many kids Dr. Irvine see
k + d = 130 (Number of patients Dr. Irvine see in a week)
Including the ratio:
7k = 3d
Replacing d:
d = 130 - k
Now substituting:
7k = 3 * (130 - k)
7k = 390 - 3k
10k = 390
k = 390/10
<u>k = 39</u>