Answer:
You bought 5 pounds of bananas
Step-by-step explanation:
Firstly, we assign variables.
Let the number of pounds of bananas bought be b and the number of pounds of apple bought be a .
One more pound of apples than bananas were bought.
Mathematically this means a - b = 1 or a = b+ 1 .........(i)
The total cost of apples bought is 3.4 * a = $3.4a
The total cost of bananas bought is 2.30 * b = $2.30b
Now the addition of both equals $31.90
Thus, we have;
3.4a + 2.3b = 31.9 •••••••••(ii)
From i, we can substitute for a
3.4(b+1) + 2.3b = 31.9
3.4b + 3.4 + 2.3b = 31.9
5.7b + 3.4 = 31.9
5.7b = 31.9 - 3.4
5.7b = 28.5
b = 28.5/5.7
b = 5 pounds
Answer:x = 200 students
y = 300 non-students
Step-by-step explanation:
5x + 10y = 4000
x + y = 500
Set y = 500-x
5x + 10(500-x) = 4000
5x + 5000-10x
-5x + 5000 = 4000
-5x = -1000
x = 200 students
y = 300 non-students
Let's double checks
5(200) + 10(300)
1000 + 3000 = 4000
(•‿•。◕‿◕。。◕‿◕。。◕‿◕。。◕‿◕。。◕‿◕。。◕‿◕。
I believe the answer is going to be 74 students.
Answer: The second number is 96.
Step-by-step explanation:
Let the second number be x
7/8 = 84/x
or, 7x = 672
or, x = 672/7
so, x = 96