3 years ago

I NEED HELP QUICK!!!!

Mathematics

1 answer:

aivan3 [116]3 years ago

4 0

Just graph the points

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you take a group of 20 people going to the movies. kids’ tickets cost $4 each, and adults tickets $6 each. your total cost is $9

brilliants [131]

The number of kids in your group is 12.

Step-by-step explanation:

Given,

Number of people = 20

Cost of each kid ticket = $4

Cost of each adult ticket = $6

Total spent = $96

Let,

x be the number of kids ticket

y be the number of adult ticket

According to given statement;

x+y=20 Eqn 1

4x+6y=96 Eqn 2

Multiplying Eqn 1 by 4

$4(x+y=20)\\4x+4y=80\ \ \ Eqn\ 3$

Subtracting Eqn 3 from Eqn 2

$(4x+6y)-(4x+4y)=96-80\\4x+6y-4x-4y=16\\2y=16$

Dividing both sides by 2

$\frac{2y}{2}=\frac{16}{2}\\y=8$

Putting y=8 in Eqn 1

$x+8=20\\x=20-8\\x=12$

The number of kids in your group is 12.

Keywords: linear equation, elimination method

Learn more about elimination method at:

#LearnwithBrainly

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3 years ago

The volume of a cylinder is 405pl with a diameter of 18. Find the height

KatRina [158]

Answer:

the answer is 2.5 inches

8 0

3 years ago

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Using the information in the Venn diagram below, how many people play basketball? A. 5 B. 9 C. 12 D. 17 4 D. 5

weqwewe [10]

Answer:

52 people

Step-by-step explanation:

add 5 9 12 17 4 5 and youlk get 52 people.

7 0

2 years ago

What binomial must be subtracted from 7t-5) so that the difference of the 2 polynomials is (5r+8)?

Dima020 [189]

1) Given binomials:

First binomial 7r - 5
Second binomial 5r + 8

2) To pass from 7r to 5r you have to subtract 2r, so the first term of the binomial to be subtracted is 2r

3) To pass form - 5 to + 8, you have fo subtract - 13

4) So the answer is 2r - 13, option b.

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3 years ago

Mr. Smith's class has 28 students. They all put in an equal amount of money to get Mr. Smith an end of year gift. If they collec

ivann1987 [24]

Answer:

Step-by-step explanation:

28 students all give $128

so,

$\sqrt[28]{128}$ = v v=6

Each student gave 6 dollars. This is true due to the fact that

$\sqrt[28]{128}$ =6

28X6=128

3 0

3 years ago