Answer:

Step-by-step explanation:

The first thing I would do is convert that 1.2 kilograms of salt to grams; that would ensure that all the units are the same so we can perform calculations on them.
1.2kg = 1200g
Next, I would find out how many students can do the experiment with 1200g of salt, by finding it how many 25g are in 1200g (by dividing them).

That means we still have 80 students left to provide salt for (128 - 48).
Therefore, he needs an additional 80 amounts of 25g of salt.
Therefore he needs:
Answer:
1st- what scenario are talking about?
2nd- false, becuase if you hide under any objects there is the risk of it falling over you and hurting you
Answer:
x=50
Step-by-step explanation:
note that 40% is 2/5
Therefore, 30 tomatoes is 1- 2/5 = 3/5
3/5 of the tomatoes last year is 30
lets say tomatoes = x
3/5 x = 30
divide by 3 on both sides
1/5 x = 10
multiply by 5 on both sides
x=50
:D
hope it helped :D
Find the factors from the roots, then multiply the factors together.
y
=
x
2
−
21
x
+
104