Answer:
2g+7
Step-by-step explanation:
g represents gails age
2 times gails age
2g
7 more than is addition
2g+7
Answer: -23
Step-by-step explanation:
Since we are given the value of m, all we have to do is to plug m into the expression and solve.
-23(-38+39) [parenthesis]
-23(1) [multiply]
-23
Now, we know that the expression is -23 when m=-38.
Answer:
3 dimes, 9 pennies, and 5 nickels
Step-by-step explanation:
Call the number of dimes d. Then, we will have 3d pennies and d + 2 nickels. The value for each group is 10d, 3d, and 5d + 10. Add these to get 18d + 10. This is equal to 64 cents, as stated in the question. So, setting these equal, we get that d = 3, and there are 3 dimes, 9 pennies, and 5 nickels.
Answer:
Step-by-step explanation:
The answer is the third one I guessed it and got it right
Answer:
Probability = 0.15%
Step-by-step explanation:
The provided information is:
Let X be the scores of the IQ scores that is normally distributed with mean and standard deviation
.
That is
So, 58 is 3 standard deviation left to the mean.
As 99.7% of probability lies within the three standard deviation.
Thus, above three standard deviation is:
Thus, the required probability is 0.15%