Solution:
Here we have 2 system:
1. x + y = 42
2. 13x + 18y = 666
From equation 1.:
3. y = 42 - x
Substitute equation 3 into equation 2.:
13x + 18(42 - x) = 666
-5x + 756 = 666
5x = 90
x = 18
Since we got the value of x, then we will find the value of y. Substitute x into Equation 3:
y = 42 - 18 = 24
75 mi^2
area of a triangle = 1/2 (L • W)
[1/2 (10mi • 5 mi)] • 2 = 50 mi^2
[1/2 (5mi • 5 mi)] • 2 = 25 mi^2
50 mi^2 + 25 mi^2 = 75 mi^2
Answer:
−5
Step-by-step explanation:
−5x+6
The derivative of a polynomial is the sum of the derivatives of its terms. The derivative of a constant term is 0. The derivative of ax
n
is nax
n−1
.
−5x
1−1
Subtract 1 from 1.
−5x
0
For any term t except 0, t
0
=1.
−5
Evaluate
6−5x
Answer:
1493
Step-by-step explanation:
Answer:
1500
Step-by-step explanation:
STEP 1 900 = 60% × Y
STEP 2 900 =
60
100
× Y
Multiplying both sides by 100 and dividing both sides of the equation by 60 we will arrive at:
STEP 3 Y = 900 ×
100
60
STEP 4 Y = 900 × 100 ÷ 60
STEP 5 Y = 1500
