1. If it falls 350 meters for every minute that passes, that means it must have fallen 350*5= 1,750 meters after 5 minutes had passed. So the answer is 1,750 meters higher.
2. Just represent the unknown numbers with letters so you can solve for them. That's what algebra's all about. So we'll call the unknown numbers x and y.
We know that when you add them, you get -1, and when you multiply them, you get -12. So we have:
x+y=-1
x*y=-12
You can solve for y in terms of x in one equation and plug that in for the y in another equation to find what number x represents. Once we know x, we can easily find y using either equation. So:
SOLVE FOR y IN TERMS OF x
y=-x-1
PLUG IT INTO SECOND EQUATION
x*(-x-1)=-12
SOLVE FOR x:
-x^2-x=-12
-x^2-x+12
-(x+4)(x-3)
So x must be either -4 or 3
SOLVE FOR y:
We know that y is -x-1. We know that x is either -4 or 3. So:
-(-4)-1 = 3 = y
-(3)-4 = -4 = y
So y, too, can be either -4 or 3.
Therefore, the integers are -4 and 3, as their sum is -1 and their product is -12.
We are learning about multiplying integers.
1. A hot air balloon is descending at a rate of 350m/min. How much higher was the balloon five minutes ago??
2. The sum of 2 integers is -1.Their product is -12. What are the integers??
How would i figure these out?? plz help :) thanks.
6 answers
ths so much!! what would the two integers be for this one??
the sum = +2
the product = -12
and i gotta nother question :)
One amaze day, the outside temperature was cold. I mean, like -3 degrees celcius cold!!!! Then, later, the outisde temperature ended up THREE TIMES COLDER!!! I know, omg. SO what would the new temperature be?? :)
the sum = +2
the product = -12
and i gotta nother question :)
One amaze day, the outside temperature was cold. I mean, like -3 degrees celcius cold!!!! Then, later, the outisde temperature ended up THREE TIMES COLDER!!! I know, omg. SO what would the new temperature be?? :)
hello?????? plz help, thx :)
-3*3 is the same as 3*3 with a negative sign in front.
-3*3 = -9
So the new temperature would be -9 degrees Celsius.
-3*3 = -9
So the new temperature would be -9 degrees Celsius.
the sum = +2
the product = -12
Use the same process I used for the second question. Remember to represent unknown numbers with letters and use algebra to solve them.
the product = -12
Use the same process I used for the second question. Remember to represent unknown numbers with letters and use algebra to solve them.
thanks sooo much i really apreciate it:)
1 answer