Kali has a 666 meter ladder that she wants to use to get her cat out of a tree. She puts the base of the ladder 222 meters away
1 answer:
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Answer:
or
Step-by-step explanation:
This is factorable.
The leading coefficient is 1.
Since this is a quadratic all we have to do is find two numbers that multiply to be c and add up to be b to factor the expression that is to the left of the equal sign.
By the way a quadratic expression looks like .
So we want to find two numbers that multiply to be -6 and add up to be -1.
Those numbers are -3 and 2 since (-3)(2)=-6 and -3+2=-1.
So the factored form is:
.
Since we have a product is zero then at least one of the factors need to be zero in order for the equation to hold.
So this means we have the following two equations to solve:
or
First equation we will add 3 on both sides.
Second equation we will subtract 2 on both sides.
or
Answer:
The time taken from start to finish is 48 minutes.
Step-by-step explanation:
Given : When they are both racing on hoverboards, Victoria is 3 times as fast as her brother Max. When she is on foot, she is 3 times slower than Max on his hoverboard. They took off on hoverboards at the same time, but after 12 minutes, Victoria’s hoverboard broke and she immediately started to run.
To find : How long, in minutes, did it last from start to finish?
Solution :
Distance = Speed × Time
Let the speed of Max = s
Time taken = t
At 12 minutes,
Distance covered by Max =
Victoria is 3 times as fast as her brother Max.
Distance covered by Victoria =
After 12 minutes,
Victoria’s hoverboard broke and she immediately started to run.
When Victoria is on foot, she is 3 times slower than Max on his hoverboard.
Distance covered by Max =
Distance covered by Victoria =
Since the race was a tie, then
Total distance of Max = Total distance of Victoria
The time taken from start to finish is 48 minutes.