Answer:
x + y = 36.....Equation 1
x = 7 + 2y...... Equation 2
Step-by-step explanation:
Let the number of:
Orange goldfish = x
Black gold fish = y
Anna has a total of 36 goldfish in her aquarium, some are orange and some are black.
x + y = 36.....Equation 1
The number of orange goldfish is 7 more than twice the number of black goldfish.
x = 7 + 2y...... Equation 2
We can rewrite this as:
x - 2y = 7..... Equation 2
The system of equations below that can be used to describe the number of black and orange goldfish in Anna's aquarium is :
x + y = 36.....Equation 1
x = 7 + 2y...... Equation 2
Answer:
36w
Step-by-step explanation:
I am joyous to assist you anytime.
to solve for x you take tangent inverse of both sides then you get what x is equal to, it rounds to 30.1
I think the answer to your question is 11/2
Answer:
9 days
Step-by-step explanation:
280=30d+10
270=30d
9=d
