First u subtract 19-4= 15 and then b= 15. So then 4+15=19. B=15
Hope this helps!
Part 1:
Proportion: 1/2 per foot.
Solve: The tree is 10 feet tall.
Solution in a sentence: To solve this, you take the shadows length, and double it to get objects actual height.
Part 2:
Proportion: 2 male horses to 3 female horses
Solve: There are 18 Female Horses.
Soulution in a Sentence: To solve this, you take the amount of male horses, divide it in half, then multiply it by 3 to get the answer.
Part 3:
Proportion: 3 drops to every 4 pints of water.
Solve: There are twelve drops in the 16 pints of water.
Solution: Every four pints of water, there is three drops. So you take the sixteen pints, divide it by four. Then, multiply it by three to get you answer.
Answer:
a. x=8
b.Step 1: Simplify both sides of the equation.
2(2x−2)=4x−4
(2)(2x)+(2)(−2)=4x+−4(Distribute)
4x+−4=4x+−4
4x−4=4x−4
Step 2: Subtract 4x from both sides.
4x−4−4x=4x−4−4x
−4=−4
Step 3: Add 4 to both sides.
−4+4=−4+4
0=0
Answer:
All real numbers are solutions.
c. Step 1: Simplify both sides of the equation.
3(x+1)=4x+7−x
(3)(x)+(3)(1)=4x+7+−x(Distribute)
3x+3=4x+7+−x
3x+3=(4x+−x)+(7)(Combine Like Terms)
3x+3=3x+7
3x+3=3x+7
Step 2: Subtract 3x from both sides.
3x+3−3x=3x+7−3x
3=7
Step 3: Subtract 3 from both sides.
3−3=7−3
0=4
all credit goes to mathpapa
Answer: 7
Step-by-step explanation:
Total=LN
Piece= LM
Total-piece
LN-LM=MN
20-13=7
MN=7