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Levart [38]
3 years ago
11

Three friends go to the movies. Each ticket costs $7. They also buy popcorn for $6, candy for $4 and a drink for $2. The friends

want to split the total cost evenly. Write a numerical expression to represent this situation and determine how much each friend owes.
Mathematics
2 answers:
ozzi3 years ago
6 0
Each friend owes 11 dollars
((7*3)+4+2+6)/3=11
Diano4ka-milaya [45]3 years ago
6 0

Answer:

7+7+7+6+4+2=33

Each friend will have to pay $11

Step-by-step explanation:

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Answer: The width of each flag = 12 cm

The average amount of time it takes Sandra to make each flag =  20 minutes.

Step-by-step explanation:

Given: The ratio of the length to the width the official german flag is 5:3.

Let length = 5x, width = 3x

Length of each flag = 20 cm

i.e. 5x=20\Rightarrow\ x=\dfrac{20}{5}=4\text{ cm}

Then width of each flag = 3 x 4 = 12 cm

i.e. width of each flag = 12 cm

Total time to make 12 flags = 4 hours

Time taken to make 1 flag = \dfrac{4}{12} hour

Time taken to make 1 flag = \dfrac{1}{3} hour

1 hour = 60 minutes

Time taken to make 1 flag = \dfrac{1}{3}\times60 minutes = 20 minutes.

Hence, the average amount of time it takes Sandra to make each flag =  20 minutes.

7 0
3 years ago
Pleaseee I need help on this one too
erastova [34]
I can't exactly see if the 10 at the end is negative, but I'm going to assume that it is.
10x - 6y = 8
5x - 10y = -10
= (2, 2)
} I hope this helped! {
5 0
3 years ago
Please solve this proportion with steps (I'm stuck)<br> (9x+6)/18= (20x+4)/3x
guapka [62]
\frac{9x+6}{18}=\frac{20x+4}{3x}

Cross multiply. Distribute...
3x(9x+6)=18(20x+4)\\27x^2+18x=360x+72\\27x^2-342x-72=0\\3x^2-38x-8=0

OH GOD IT'S A QUADRATIC
<em>(our equation is in ax² + bx + c = 0 form. a=3. b= -38. c= -8.
</em><em>plug these values into the quadratic formula and simplify.)</em>
x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}=\frac{-(-38)\pm\sqrt{(-38)^2-4(3)(-8)}}{2(3)}=\frac{38\pm\sqrt{1444+96}}6\\\\\sqrt{1444+96}=\sqrt{1540}=\sqrt{4\times345}=2\sqrt{345}\\\\\frac{38\pm2\sqrt{345}}6=\boxed{x=\frac{19\pm\sqrt{345}}3}

Approximate values for x: -0.20714 or 12.874

7 0
3 years ago
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Answer:

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Step-by-step explanation:

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