4(x-5)=3(x+5)
Multiply the first bracket by 4
(4)(x)=4x
(4)(-5)=-20
Multiply the second bracket by 3
(3)(x)=3x
(3)(5)=15
4x-20=3x+15
Move 3x to the other side
Sign changes from +3x to -3x
4x-3x-20=3x-3x+15
4x-3x-20=15
x-20=15
Move -20 to the other side
Sign changes from -20 to +20
x-20+20=15+20
x=15+20
Answer: x=35
Answer:
2. y, because ΔABC = ΔEDC
Step-by-step explanation:
- Both sides, angles are similar.
- B and D has an angle of 65 degree
- E and A has angle of y
That's why B is best option.
Answer:
45 is the father's age
Step-by-step explanation:
graph each inequality y-3x<-4
First we solve the inequality for y
Add 3x on both sides, so inequality becomes
y < 3x -4
Now we graph it
for graphing , replace < symbol with = sign
y= 3x - 4
Now make a table, assume some number for x and find out y
x y
-1 y=3(-1)-4 = -7
0 y=3(0)-4 = -4
1 y=3(1)-4 = -1
Now plot (-1,-7), (0,-4) ,(1,-1) on graph
Join all the points and make a dotted line ( dotted line for < or > symbol)
now we do shading
for < symbol we shade down
for > symbol we shade up
The graph is attached below
Answer:
Why is 82 a composite number? A composite number is a number that can be divided evenly by more numbers than 1 and itself. ... The number 82 can be evenly divided by 1, 2, 41 and 82, with no remainder. Since 82 cannot be divided by just 1 and 82, it is a composite number.
Step-by-step explanation:
