Answer:
You find percent of change
by finding the differences between the numbers given
and by setting up a fraction to find the change because percentages deals with fractions
Then you simplify ur fraction by multiplying by 100
Step-by-step explanation:
e.g
find the percent of change from 20 to 80
find their differences
80-20= 60
set up a fraction
60/20
simplify your fraction by multiplying over 100
60/20*100
3*100=300%. answer
I have to form a couple of equations in order to solve it.
let the amount of soybean in the mixture be x and that of cornmeal be y
Step-by-step explanation:
x+y = 280
y = 280 - x
x*(14/100) + y*(7/100) = 280*(12/100)
Multiplying the whole equation by 100;
14x + 7y = 3360
in this equation,put y = 280 - x
14x +7 (280-x) = 3360
14x +1960 - 7x = 3360
14x - 7x = 3360 - 1960
7x = 1400
x = 200lbs
y = 280 - x
= 280 - 200
= 80 lbs
Inorder to make a 280lbs mixture having 12% protein, we should mix 200lbs of soyabean and 80 lbs of cornmeal
Some integers are irrational is false
Answer:
9 : 24
Step-by-step explanation:
Sum the parts of the ratio, 3 + 8 = 11 parts
Divide 33 by 11 to find the value of one part of the ratio
33 ÷ 11 = 3 ← value of 1 part of the ratio, thus
3 parts = 3 × 3 = 9
8 parts = 8 × 3 = 24
Answer:
375 seats
Step-by-step explanation:
500/4=125
125 times 3= 375
