Answer:
The correct option is 2.
Step-by-step explanation:
The given system of equations is
.... (1)
..... (2)
Substitute the value of x from equation (2), in equation (1).
On simplification, we get
The value of xis 10 and the value of y is -20. So, the solution of the given system of equation is (10,-20).
Therefore the correct option is 2.
The price will be 32.5 after calculating if a store advertises that customers can take 25%off the original price.
It's the ratio of two integers stated as a fraction of a hundred parts. It is a metric for comparing two sets of data, and it is expressed as a percentage using the percent symbol.
It is given that:
A store advertises that customers can take 25%off the original price and then take an extra 10%off is this 35% off.
No, it's not 35%. Its 32.5 %
If it costs 100$
25% × 100$ = 25$
So the price after 25% off is 100$ - 25$ = 75
10% × 75$ = 7.5 $
75$ - 7.5$ = 67.5$
100 - 67.5 = 32.5
Thus, the price will be 32.5 after calculating if a store advertises that customers can take 25%off the original price.
Learn more about the percentage here:
#SPJ5
A. 122.7 m²
B. 78.5 m²
C. 39.3 m²
D. 19.6 m²
Answer:
-13x+9
Step-by-step explanation:
I believe this is right
Answer:
-13x + 21
Step-by-step explanation:
-3x + 6 - 5(2x-3)
-3x + 6 - 10x +15
-13x + 21