We can use substitution to solve for x then substitute the x value back into the original equation to solve for y...
5x + 2y = 7
y = x + 1
Since y = x + 1, we can substitute x + 1 for y in the first equation
5x + 2(x+1) = 7
5x + 2x + 2 = 7
7x + 2 = 7
7x = 5
x = 5/7
Now substitute 5/7 for x in either of the original equations
y = x + 1
y = 5/7 + 1
y = 1 5/7
Solution set is (5/7, 1 5/7)
Answer: To convert a number into percent multiple it by 100 and then add the percent sign. These examples convert the numbers 23 and 158 to percents. To convert a number with a decimal into percent, multiply it by 100 and add the percent sign. These examples convert 0.4580; 0.0257; and 0.00458.
Hope this help
Step-by-step explanation:
Answer:
The answer is A. the opposite of eight.
Step-by-step explanation:
The opposite of 8 is -8, and to prove this, the opposite of -8 is 8. This is correct.
The absolute value of 8 is 8, and the absolute value of any number (positive or negative) will always be positive, so this is incorrect.
8 above 0 means positive 8, so this is incorrect.
The opposite of -8 is positive 8, so this is incorrect.
I hope this helped! :-)
Answer:
B. |-6|<|-7|
Step-by-step explanation:
|-6| = 6
|-7| = 7
and 6 <7 so the answer is B.
The number of permutations of seven different sweatshirts is given by: