4 dollars per book (had to put extra words)
Answer: x-6=-2
Step-by-step explanation:
when asking what 'blank' less than a number is, you are gonna subtract 'blank' from the number. Also, just incase, x=4.
Answer:
Part 4)
Part 5)
Part 6)
Step-by-step explanation:
Part 4) Find ER
we know that
In the right triangle ERF
Applying the Pythagorean Theorem
substitute the given values
solve for ER
Part 5) Find DF
we know that
In the right triangle DRF
Applying the Pythagorean Theorem
substitute the given values
simplify
Part 6) Find DE
we know that
----> by segment addition postulate
we have
substitute
Answer:
Answer=$1,050
Step-by-step explanation:
On sale for 40% off. This means the sale price is 60% of the Original Price.
Therefore:
100% - X
60% - 630
Algebra simple equation:
X= 100%*$630/60%
X=1*$630/0.6 = $1,050
Answer: he invested $46062.5 at 6% and $23031.25 at 10%
Step-by-step explanation:
Let x represent the amount which he invested in the account paying 6% interest.
Let y represent the amount which he invested in the account paying 10% interest.
He puts twice as much in the lower-yielding account because it is less risky.. This means that
x = 2y
The formula for determining simple interest is expressed as
I = PRT/100
Considering the account paying 6% interest,
P = $x
T = 1 year
R = 6℅
I = (x × 6 × 1)/100 = 0.06x
Considering the account paying 10% interest,
P = $y
T = 1 year
R = 10℅
I = (y × 10 × 1)/100 = 0.1y
His annual interest is $7370dollars. it means that
0.06x + 0.2y = 7370 - - - - - - - - - -1
Substituting x = 2y into equation 1, it becomes
0.06 × 2y + 0.2y = 7370
0.12y + 0.2y = 7370
0.32y = 7370
y = 7370/0.32
y = $23031.25
x = 2 × 23031.25
x = 46062.5