63 red marbles.
Because the probability of drawing a red marble is 7/8, the number of red marbles = 7/8 * 72
= 7 * 9
= 63.
Answer:
x = - 10
Step-by-step explanation:
Average is calculated as
average = , thus
= 3
Multiply both sides by 3 to clear the fraction
19 + x = 9 ( subtract 19 from both sides )
x = - 10
Answer:
When you solve using quadratic formula you get,
y= 4,-2
Step-by-step explanation:
Answer:
Check the explanation
Step-by-step explanation:
From the given differences of SAT scores
find the mean and standard deviation of difference.
Kindly check the attached image below to see the step by step explanation to the question above.
Cost= 2+0.25T is the equation because 2 dollars is the base amount and then you add the cost of the toppings (T)