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Inga [223]
3 years ago
9

Please help I’ll give you brainliest!

Mathematics
1 answer:
Elodia [21]3 years ago
5 0
Here is the answers for the first one

You might be interested in
The sum of three numbers is 54. The third number is 6 more than the first. The second number is 2 times the third. What are the
77julia77 [94]

Answer:

9, 30, and 15.

Step-by-step explanation:

Let the three numbers be a, b, and c.

The sum of them is 54. So:

a+b+c=54

The third number is 6 more than the first. In other words, c=a+6.

The second number is twice the third. In other words, b=2c.

Let’s write the second number in terms of a. Since b=2c, this means that b=2(a+6).

Let’s substitute them into our equation. So:

a+2(a+6)+(a+6)=54

Solve for a. Distribute:

a+2a+12+a+6=54

Combine like terms:

4a+18=54

Subtract 18 from both sides:

4a=36

Hence, the value of a is:

a=9

So, the first number is 9.

The third number is 6 more than the first, so the third number is 15.

The second number is twice the third. So, the second number is 30.

Therefore, our numbers are:

9, 30, and 15.

3 0
2 years ago
A baseball is hit so that the height above the ground is given by the equation h=-16t^2+96t+3, where h is the height in feet and
Alexus [3.1K]
H'=-32t+96
0=-32t+96
-96=-32t
3=t

3 seconds

H=-16t^2+96t+3
H=48^2+288+3

H=48^2+291
6 0
3 years ago
Please help will mark BRAINLIEST <br>​
Julli [10]

Answer:

A.)

-2, -1, 0, 1, 2, 3, 4, 5, 6

Step-by-step explanation:

mark me brainliest!!

4 0
2 years ago
Plz help!!!! i can't figure it out
miss Akunina [59]

Answer:

Step-by-step explanation: what

4 0
2 years ago
Read 2 more answers
You sell tickets for admission to your school play and collect a total of $104. Admission prices are $6 for adults and $4 for st
riadik2000 [5.3K]

Answer:

11 tickets

Step-by-step explanation:

1. write an equation:

First,  variable x symbolizes the number of adults who bought tickets. And variable y symbolizes the number of students.

If each adult paid $6, and each student paid $4, and the total dollars you've collected is 104, this is how we'll write our equation:

6x + 4y = 104

2. we can write another equation based on this information: "You sold 21 tickets". Which concludes that the number of tickets adults and students had paid for equals the number of tickets you've sold:

x + y = 21

3. now, we've got two equations. Let's compensate:

x + y = 21

x = 21 - y

6x + 4y = 104

6 (21 - y) + 4y = 104

126 - 6y + 4y = 104

-6y + 4y = -22

-2y = -22

y = -22 / -2

<u>y = 11</u>

So the number of student tickets is <u>11</u>.

3 0
3 years ago
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