Answer:
Step-by-step explanation:
b + g = 4 ...... b = 4 - g
3b + 5g = 15.50
3(4 - g) + 5g = 15.50
12 - 3g + 5g = 15.50
-3g + 5g = 15.50 - 12
2g = 3.50
g = 3.50 / 2
g = 1.75 <==== 1.75 lbs of green olives (or 1 3/4 lbs)
b + g = 4
b + 1.75 = 4
b = 4 - 1.75
b = 2.25 <==== 2.25 lbs of black olives (or 2 1/4 lbs)
A because 1.6 is less than 2.4, 2.2, and 2.6
This is a direct variation
C = pi*d
pi is a constant and it does thru (0,0)
The value was x.
Then 40% of x was added to x.
Now it is $294
x + 40% * x = 294
x + 0.40x = 294
1.4x = 294
x = 210
The value was $210.
Ok so first find the number of cats. Since it says there are done the number of cats to dogs we need to multiply 30 times 2, which equals 60. So now we know there are 60 cats, 30 dogs and 40 birds. Add up all the animals to get 130 animals total. Next divide 30 by 130 to get the percentage. Leave a comment if you need more help.