<span>y = –2x + 5
–5y = 10x + 20
replace </span>y = –2x + 5 into –5y = 10x + 20
–5( –2x + 5 ) = 10x + 20
10x - 25 = 10x + 20
-25 = 20...can't be...
answer is <span>D. no solution</span>
Answer:
Step-by-step explanation:
let be a constant written as:
It is given that y=4, x=-40
#We substitute x, y values in our function:
We substitute the constant value in the equation:
Answer:
12,200
Step-by-step explanation:
hope this helps!!!
Answer:
The answer is $30
Step-by-step explanation:
Markup refers to the amount added to the cost price of goods to cover overhead and profit.
The vase was bought for $25, then is now selling for $55
$55-$25=$30
hope this helps please mark brainliest :)
Given:
Radius of a circle = 21 m
Area of a sector of the circle = 27.72 m²
To find:
The angle at the center of the circle.
Solution:
The area of a second is:
Where, r is the radius of the circle and is the central angle.
Putting in the above formula, we get
Therefore, the central angle of the sector is .