This question requires you to know the lowest common multiple (LCM) of 5, 4 and 2. there are a few ways to do that. in this case the LCM would be 20. this means that in 20 year the science department would buy all 3 equipment at the same time
Answer:
x = -9
x = 2
Step-by-step explanation:
We can say that:
x (x + 7) = 6*3
x² + 7x = 18
x² + 7x - 18 = 0
Now solving by quadratic formula we get;
x = 2, and -9
if we substitute in -9 for x, let's see what happens:
(-9) (-9 + 7) = 6*3
(-9) (-2) = 6*3
18 = 18
therefore x = -9 works! Let's see what happens if we substitute x in for 2;
(2) (2 + 7) = 6*3
(2) (9) = 6*3
18 = 18
Therefore x = 2 works as well!
<u>The final answer would be;</u>
<u>x = -9</u>
<u>x = 2</u>
Hope this helps!
They have enough balloons because I used division as my operation. 3 can go into 16 five times. I got 1 after subtracting and bring down 2. 3 can go into 12 evenly 4 times. 12 minus 12 equals 0 with no remainder. So, they get 54 balloons for each group. But I want to know how many EACH student gets enough balloons. 54 divided by 6 groups equals 9 balloons for each student. GLOSSARY: Division - Set of operation that breaks down numbers into equal parts | Remainder - left over ||
Answer:
4
Step-by-step explanation:
To find the degree of the polynomial, add up the exponents of each term and select the highest sum.
Answer:
Divide the total number of pieces by the cost. If you don't know the number of pieces, then you can do it by weight instead. Remember to use the same units.