2 years
Tina planted a tree. It started at 6 feet and every year it grows another three feet. The expression representing this is 6 + 3x, where x represents years.
Tinas neighbor also planted a tree where each year (which we called x) it grows 6 feet. The expression to represent this is 6x.
If you want to know when they’ll be the same height, then you need to set the expressions equal to each other.
6 + 3x = 6x
To solve, first get the variable to one side
6 = 3x
Divide each side by 3
x = 2
The trees wi be the same height the 2nd year.
1. 25% if 1/4, so we want to find 1/4 of 176. Best way to get the result is just divide 176 by 4, so 176:4=44 - its the answer.
2. To get the answer we can use proportion
100% -----------20
90% ---------- x
crossmultiply now
100x=90*20
100x=1800 /:100 divide both sides by 100
x=18 - its the answer
3. Similar problem
24 ---------- x
30 ---------- 100%
crossmultiply now
24*100%=30x
2400%=30x /:30 divide both sides by 30
2400%:30=x
80%=x - its the answer
1) In a proportion: y/x=k
k is your constant of proportionality.
x is your independent variable and y is your dependent variable.
Since you need 3 oz of flour for each 2 oz of sugar, y=3 and x=2.
So k=1.5 (3/2)
3)
a) y/x as a showed above. This question is very similar to #1.
b) y/x=k
Answer:
chicken feet
Step-by-step explanation:
Answer:
we have to find perimeter ? if yes then there are 4 sides we have to subtract 3.5cm with 3 then the answer will be added to 4
