Answer:
20 male learners
Total number of learners is 50
Step-by-step explanation:
(See attachment below)
They will have the same amount of money after 7 weeks.
We first set these equal to each other:
36+4x=x²+15
We want to gather all of the variables on one side. Subtract 4x from both sides:
36+4x-4x=x²+15-4x
36=x²-4x+15
We want the equation to be equal to 0 to solve it, so subtract 36 from both sides:
36-36=x²-4x+15-36
0=x²-4x-21
We can factor this expression. We want factors of -21 that sum to -4; -7(3)=-21 and -7+3=-4:
0=(x-7)(x+3)
Using the zero product property, we know that x-7=0 or x+3=0; this means x=7 or x=-3. Since a negative number of weeks makes no sense, the answer is 7 weeks.
There is a app called photo mathyou should use it
Answer:
(x,y) + (x-4, y)
Step-by-step explanation:
horizontally means it would be on the x axis traveling to the left would be your subtracting there fore the only answer which comes with a x-4 is (x,y) + (x-4, y)