Answer:
$16.50
Step-by-step explanation:
Question: 2{4x - 3(x + 5) + 10} + 3(x - 2)
Steps
1. Expand 4x - 3(x + 5) + 10 = x - 5
= 2(x - 5) + 3(x - 2)
2. Expand 2(x - 5) = 2x - 10
= 2x - 10 + 3(x - 2)
3. Expand 3(x - 2) = 3x - 6
= 2x - 10 + 3x - 6
4. Then, simplify:
Add 2x + 3x = 5x
Add -10 - 6 = -16
5. Plug it in:
5x - 16 <-------------- Answer
Hope this helped!!!!
The system of equations is d+b=12 and 2.59d+5.49b=36.88 and Meaghan bought 10 packages of hot dogs and 2 packages of hamburgers.
Step-by-step explanation:
Cost of one package of hot dog = $2.59
Cost of one package of hamburgers = $5.49
Packages bought = 12
Cost of packages = $36.88
Let,
Packages of hot dogs = d
Packages of hamburger = b
According to given statement;
d+b=12 Eqn 1
2.59d+5.49b=36.88 Eqn 2
Multiplying Eqn 1 by 2.59

Subtracting Eqn 3 from Eqn 2

Dividing both sides by 2.90

Putting b=2 in Eqn 1

The system of equations is d+b=12 and 2.59d+5.49b=36.88 and Meaghan bought 10 packages of hot dogs and 2 packages of hamburgers.
Keywords: linear equation, elimination method
Learn more about elimination method at:
#LearnwithBrainly
Answer:
8 weeks
Step-by-step explanation:
Let
w = number of weeks
John = 12 + w
Aiden = 4 + 2w
How many weeks (w) will it be before Aiden knows as many songs as John?
Equate both John and Aiden expression
John = Aiden
12 + w = 4 + 2w
Collect like terms
12 - 4 = 2w - w
8 = w
w = 8 weeks
It will take 8 weeks before Aiden knows as many songs as John
Answer:
20 fish.
Step-by-step explanation:
Convert ratio to fraction:
There were 5 / (5 + 2) = 5/7 of fish.
So number of fish = 5/7 * 28
= 20.