Answer:
9+4n-1=
Step-by-step explanation:
first you substitute n for 3
next you do 4*n=12
then you finish the problem
with order of operations
4*3=12
12+9=21
21-1=20
20 is your answer
hope this helped ≈izzie
Answer: 4/7
Step-by-step explanation:
Multiply 5/7 by 4/5. The keyword is "of" which means multiply. Once you multiply them, you will get 20/35. You can simplify this to 4/7.
Answer:
y=
+0.25x
Step-by-step explanation:
Answer:
A: 15
Step-by-step explanation:
The angles are opposite to each other.
Vertically opposite angles are equal in size.
Put up an equation and solve for a.
6a + 10 = 3a + 55
Subtract 3a and 10 on both sides.
6a - 3a = 55 - 10
Combining like terms.
3a = 45
Divide both sides by 3.
a = 45/3
a = 15
The value of a is 15.
