Answer:
300 bags of wheat
Step-by-step explanation:
We can get the answer by using<em> algebraic expressions. </em>If 1,200 bags means a 20% decrease in the yield from 2005, then it is<em> 80% of the yield in 2005</em>.
Let's solve.
Let x be the number of bags yield from 2005.
We can say: 1,200 is 80% of x
1,200 = 80% of x
1,200 = 0.80(x)
x =
<em>x = 1,500</em>
The number of bags yield from 2005 is 1,500.
Let's check.
Let x be the decrease in yield.
1,500 x 20% = x
1,500(0.20) = x
x = 300
The 20% decrease in yield is equal to 300 bags of wheat.
1,500 - 300 = 1,200 bags
The answer is correct.
Answer:
2
Step-by-step explanation:
Answer:
3
Step-by-step explanation:
1/4(r - 5/2) = 1/8
1/4r - 5/8 = 1/8
1/4r = 1/8 + 5/8
1/4r = 6/8
Divide both sides by 1/4
1/4r ÷ 1/4 = 6/8 ÷ 1/4
1/4r * 4/1 = 6/8 * 4/1
r = 24/8
r = 3
X= adult tickets
Y= Children tickets
You need two equations one is number of people
Second formula is the money
X+y= 429
1x+ .75Y= 372.50
You can use the substitution or elimination method
I will use substitution make X = 429-y using the 1st equation then put it in the 2nd
429-1y+.75y= 372.50
429 -.25y= 372.50
-429. -429
-.25y=. -56.5
Divide both side by -.25
y= 226
So 429-226= 203 for X
203 adult tickets and 226 children tickets