Answer:
160 tiles.
Step-by-step explanation:
First let's make an equation.
Each tile costs $4, let's make <em>t=number of tiles.</em>
+$15.82, and the total cost being $655.82
So ideally our equation would look like
<em>4t+15.82=655.82</em>
<em />
Now solve.
First, subtract <em>15.82 </em>on both sides.
<em>4t=640</em>
Second, divide <em>4 </em>on both sides to make the variable <em>t </em>by itself.
<em>t=160</em>
<em />
So, the contractor purchased 160 tiles.
Answer:
9: tens place
4: tenths place
Step-by-step explanation:
1. Kilogram
2. Peach
3. 0.0032715 grams
4. 538,836 mL
5. 1.65m
6. 840
ANSWER

EXPLANATION
The given equation is

Expand the parenthesis:


Write in standard form:


where

The axis of symmetry is given by the formula:

Plug the values to get:


The equation of axis of symmetry is

Answer:
Step-by-step explanation:
∠A and ∠B are vertical => ∠A=∠B
20x+10=30x-10
20x-30x= -10-10
-10x= -20
x= -20 / -10 = 20 / 10 = 2
x=2
Good luck!