Answer:
120
Step-by-step explanation:
I am taking the test rn
Answer:
i think it's either b. or a.
Step-by-step explanation:
X = 4y
3x - y = 70
substitute the x in the second equation with the other half of the first equation.
3(4y) - y = 70
12y - y = 70
11y = 70
y = 6.36 repeating, or 6 4/11
now use this to solve first equation
x = 4 (6 4/11)
x = 25.45 repeating
done
Answer:
75
Step-by-step explanation:
By "composite" we mean "numbers that can be factored further."
The numbers between 10 and 20 but not including 10 or 20 are:
12, 14, 15, 16, 18
12, 14, 15, 16 and 18 are all composite numbers (all can be factored).
Their sum is 75.
Answer:
6 1/3
Step-by-step explanation:
8 1/2 - 2 1/6
you need to get a common denominator of 6
1/2 * 3/3 = 3/6
8 3/6
-2 1/6
-----------
6 2/6
we can simplify 2/6 by dividing top and bottom by 2
6 2/6 = 6 1/3
