Answer:
x²+5x - 150 = 0
Step-by-step explanation:
Let the length be y and width be x
If the length of a swimming pool is 10 more than 2 times the width, then;
y = 2x+10 ...1
Since the Area is 300m²
A = xy
300 = xy .... 2
Substitute 1 into 2
300 = x(2x+10)
300 = 2x²+10x
Rearrange
2x²+10x - 300 = 0
Divide through by 2
x²+5x - 150 = 0
This gives the required quadratic expression
Answer:
2,538 apples and 19,458 lemons.
Step-by-step explanation:
1 person gets 6 apples and 48 lemons. Now there are different ways of solving this. One is using a calculator and/or multiplication. If 423 people get 6 apples each, we need to get the total by multipling.
423*6=2538 apples.
Now lets do the same thing with the lemons.
423*46=19458 lemons.
There would be a total of 2,538 apples and 19,458 lemons for 423 people.
Answer: okay so first solve for x which is going to be x=10
Step-by-step explanation: