Answer:
the value of x and y is 3 and -1 respectively.
Step-by-step explanation:
from the question
let
2x + 3y = 3........................ equation 1
y = 8 - 3x.............................. equation 2
put y = 8 - 3x in equation 1
2x + 3y = 3........................ equation 1
2x + 3 ( 8 - 3x) = 3
2x + 24 - 9x = 3
24 - 7x = 3
24 = 3 + 7x
24 -3 = 7x
21 = 7x
divide both sides by 7
x = 3
put x = 3 in equation 2
y = 8 - 3x.............................. equation 2
y = 8 - 3 ( 3)
y = 8 -9
y = -1
therefore the value of x and y is 3 and -1 respectively.
Answer:
Eagle - 0.83%
Sparrow - 4%
Step-by-step explanation:
1. On average, the weight of the eagle is 1.68 kg. Its head weighs 14 g.
Then
1.68 kg = 1,680 g - 100%
14 g - x%
Write a proportion:
Cross multiply:
2. On average, the weight of the sparrow is 25 g. Its head weighs 1 g.
Then
25 g - 100%
1 g - x%
Write a proportion:
Cross multiply:
7.1, or 7 if you have to round it
Answer:
108 teaspoons.
Step-by-step explanation:
When converting ounces to teaspoons, multiply the number of ounces by 6. There are 6 teaspoons in 1 ounce. So, multiplied by 18, that equates to 108 teaspoons of juice in the can.