Answer:
<em>The number is -6.</em>
Step-by-step explanation:
Let x = the unknown number
"the sum of a number and four" = n + 4
"Six times the sum of a number and four" = 6(n + 4)
"Six times the sum of a number and four is -12." is the equation
6(n + 4) = -12
Divide both sides by 6.
n + 4 = -2
Subtract 4 from both sides.
n = -6
Answer:
i used to know how to do this but i forgot sorry hope someone helps
Step-by-step explanation:
Good Luck!!
Answer:
How high is the climber?
Step-by-step explanation:
So, he starts at 1200. And then he walks 800 times 3, which is 2100.
So, 2100 + 1200 = 3300
Answer:
feet tall
Step-by-step explanation:
Ajax is "5 and 1 fourth feet tall", which can be written as the mixed number 
.
His sister is "3 eighths foot shorter", so she's 3/8 feet shorter than 5 1/4.
So, this is just a subtraction problem:
To solve this, we want to convert 5 1/4 into an improper fraction, which is: 
. Now, we want to find a common denominator. In this case, that common denominator is 8, so 
.
Finally, we subtract 3/8 from 42/8: 
. So, Ajax's sister is 39/8 feet. Converting this into a mixed number, we have: 39/8 = 4
.
Therefore, Ajax's sister is feet tall.
Hope this helps!
