1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
sladkih [1.3K]
3 years ago
9

Juan and Adam go to the movie theater and purchase refreshments for their friends,

Mathematics
2 answers:
harkovskaia [24]3 years ago
5 0

Answer:

Popcorn = $4.25 per bag, Drink = $8.75

Step-by-step explanation:

p = popcorn

d = drinks

10p + 10d = 130

3p + 5d = 56.50

multiply the second equation by -2 and then solve by elimination

-6p - 10d = -113

4p = 17

p = 4.25

3(4.25) + 5d = 56.50

5d = 43.75

d = 8.75

boyakko [2]3 years ago
5 0

Answer:

10x + 10y = $130.00

3x + 5y = $56.50

Solution: x=4.25 and y=8.75

Step-by-step explanation:

The variable x will be used here to show the price of each bag of popcorn, while y will be used to represent the price of each drink.  First we can solve 10x + 10y = 130 for x:

10x + 10y = 130

10x + 10y + -10y = 130 - 10y (Subtract 10y from both sides)

10x = -10y + 130

Now divide 10 by both sides

x = -y + 13

Next, you will substitute -y + 13 for x in 3x + 5y = 56.5:

3x + 5y = 56.5

3(-y + 13) + 5y = 56.5

2y + 39 = 56.5 (Simplify both sides of the equation)

2y + 39 + −39 = 56.5+ −39 (Add -39 to both sides)

2y = 17.5 (Now divide both sides by 2)

y = 8.75

You can check this by substituing 8.75 for y in x = -y + 13

You might be interested in
5. Find the value of x that makes BC || DE.
s344n2d4d5 [400]

Answer:

x = -7

Step-by-step explanation:

To find the value of x, you need to set up a proportion:

\frac{x-2}{15} = \frac{x-1}{18}

Then cross multiply:

15x - 15 = 18x + 36

Then subtract 15x from both sides:

-15 = 3x + 36

Subtract 36 from both sides:

-51 = 3x

Finally, divide both sides by 3:

x = -7

8 0
3 years ago
Y = log2 (x – 4)<br><br> How do I solve this
Dominik [7]
Xmin:-10 Xmax:10 and Ymir:-10 Ymax:10

7 0
2 years ago
A mother decides to teach her son about a letter each day of the week. She will choose a letter from the name of the day. For ex
avanturin [10]

Answer:

Check Explanation

Step-by-step explanation:

The days of the week include

Sunday

Monday

Tuesday

Wednesday

Thursday

Friday

Saturday

a) So, the possible letters to be taught include

A, D, E, F, H, I, M, N, O, R, S, T, U, W, Y

There are indeed 15 possible letters.

These are the letters from which all the days of the week are formed from.

b) There are more than 4 letters that can't be taught using this method.

All the letters that cannot be taught using this method because no day of the week contains them include

B, C, G, J, K, L, P, Q, V, X, Z

c) In Tuesday, there are 7 distinct letters.

So, the sample space consist of 7 letters.

n(sample space) = 7

n(Y) = 1

Probability of picking a Y = (1/7)

The reasoning is simple, picking a Y on a Tuesday is one out of 7 possible outcomes, so, the probability of picking a Y on a Tuesday to teach the kid about = (1/7) = 0.143

Hope this Helps!!!

6 0
3 years ago
Find the magnitude of 6+2i
Svetradugi [14.3K]
For complex number, the magnitude is pretty straight forward:

sqrt(6^2 + 2^2) = sqrt(40)

For any a + bi, the magnitude will be sqrt(a^2 + b^2)
4 0
3 years ago
Round 14 17/21 to the who number​
kaheart [24]

Answer: 15 !

Step-by-step explanation:

14 17/21 can be re-written as 14.8095

Which rounds to 15.

Hope this helped! :)

4 0
3 years ago
Read 2 more answers
Other questions:
  • The ratio of the prices of Emma's phone to Sophie's phone is 7:8. If Sophie's phone costs $640, how much should the prices of th
    7·2 answers
  • Write the equation 12=3x + 6 in the form ax + b = c with c=12 what are the values of a &amp; b?
    6·2 answers
  • Explain how to graph y = 3/4 x - 8
    12·1 answer
  • Sea level is defined as an altitude of 0 ft. A scuba diver dives into the water and, in 3 min, her altitude drops from 0 ft to −
    11·1 answer
  • 1. The measure of angle AOB is 56 degrees. What is the measure of angle ACB?
    15·1 answer
  • Convert 212 degree Fahrenheit into degree Celsius<br>I will mark them as brainlists<br>​
    13·1 answer
  • You move left 1 unit and up 1 units, you end at (4,-2) where did u start?
    11·2 answers
  • What is y = –3(x – 3)(x + 7) in standard form ?
    8·1 answer
  • Need helpppppppppppppppppp
    7·1 answer
  • What is 12 inches in length
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!