Victor has 40 kg of pinto beans which cost $0.69 per kilogram. how many kilograms of kidney beans at $0.89 per kilogram should be added for the complete mixture to have a value of $0.81?

Let the amount of kidney beans to be added be X kg

Cost of X kg kidney bean = $0.89X

Cost of 40 kg pinto bean = $40×0.69 = $27.60

Total amount of the mixture = (40+X)kg

Cost of mixture per kg = $0.81

Total cost of the mixture =$ (40+X)× 0.81

According to question pinto bean and kidney bean are mixed.

Thus,

27.60+0.89X = (40+X)0.81

Removing the parenthesis

27.60+0.89X = 32.4 + 0.81X

Taking like terems together

32.40 - 27.60 = 0.89X - 0.81X

4.80 = 0.08X

X= 4.80/0.08

X = 60kg

Therefore 60kg of kidney beans to be addes to the mixture

45

step-by-step explanation:

question 1 is 8, question 2 is 9, question 3 is 24

step-by-step explanation:

now, the numbers they give you at the top are the key. from there, you just have to plug and chug! let's try 1, 2, and 3!

key: a=3, b=5, c=6

1. a+5

remember, a=3, so we plug that in to get 3+5=8

2. 15-c

c=6, so we plug that in to get 15-6=9

3. 4b

b=6, so we plug it in to get 4*6=24

time to try the rest on your own! if you put the answers below in a comment, i'll check them for you!