Answer:
49
Step-by-step explanation:
-7 × -7 = 49
The answers are C 15,470and 8,200
and A $3,314
First, you solve for m by adding the equations.
m+n=100
+ m-n=30
--------------
2m=130
m=65
Now plug in 65 for m into one of the original equations
65+n=100
n=35
You can double check by plugging them both in:
65+35=100 and 65-35=30
Hope that helps.
Given:
Five less than three-fourths of an integer is the same as five more than one-eighth of the same integer.
To find:
The integer.
Solution:
Let x be the unknown integer.
So, according to the question,
Multiply both sides by 8.
Divide both sides by 5.
Therefore, the required integer is 16 and your equation is incorrect.
Answer:
The formula for the sequence is:
Step-by-step explanation:
The general term of a geometric sequence is given by:
In which is the first term and r is the common ratio between the terms, that is, the division between them.
What is the formula for the sequence 2, -6, 18, -54, ...?
First term is 2, so
Common ratio is given by:
So the sequence is given by: