She would need 29.5 questions which would be 70% so 29.5-18 is your answer
Answer:
The quart bottle of cola for $1.50 is the better buy.
Step-by-step explanation:
In order to compare the amount of cola per cost, you need to first use the same measurements. Since one bottle is a quart and one bottle is a liter, we need to convert one to the other. There are approximately 1.06 quarts per liter. So, for the quart bottle, we can also say it has 1.06 liters of cola. To find the price per volume, we take the cost divided by the volume: 1.50 ÷ 1.06 = $1.42. The liter bottle costs $1.57. So, the quart bottle would be cheaper overall by approximately $0.15.
Answer:
Your final answer will be, x^2 +4x -12
Step-by-step explanation:
The answer is B. Rational
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