All categories

3 years ago

Adult tickets for a charity concert were $5 each. Students were admitted for $2 each. The charity concert

Mathematics

1 answer:

AfilCa [17]3 years ago

3 0

Answer:

students 150

adult 550

Step-by-step explanation:

x + y = 700

5x + 2y = 3050

x = 700 - y

5(700 - y) + 2y = 3050

3500 - 5y + 2y = 3050

-3y + 3500 = 3050

-3y = 3050 - 3500

-3y = -450

y = -450 / -3

y = 150

x = 700 - y

x = 700 - 150

x = 550

You might be interested in

If ON = MN, find MN.

Furkat [3]

Use Pythagorean theorem.

[tex]|ON|^2+|MN|^2=|OM|^2\\\\x^2+x^2=8^2\\\\2x^2=64\ \ \ \ |divide\ both\ sides\ by\ 2\\\\x^2=32\to x=\sqrt{32}\\\\x=\sqrt{16\cdot2}\\\\x=\sqrt{16}\cdot\sqrt2\\\\\boxed{x=4\sqrt2}

Answer: |MN| = 4√2.

4 0

3 years ago

A rectangle has a length that is 9 feet less than four times its width. Its area is 90 square feet

kramer

Answer:

The length of rectangle is $15\ ft$

The width of rectangle is $6\ ft$

Step-by-step explanation:

Let

x-----> the length of rectangle

y----> the width of rectangle

we know that

The area of rectangle is equal to

$A=xy$

$A=90\ ft^{2}$

$90=xy$ -----> equation A

$x=4y-9$ -----> equation B

substitute equation B in equation A and solve for y

$90=(4y-9)y$

$4y^{2}-9y-90=0$

using a graphing calculator

The solution is

$y=6\ ft$

Find the value of x

$x=4y-9$ -----> $x=4(6)-9=15\ ft$

5 0

3 years ago

Someone help me ASAP 10 points each

tia_tia [17]

Answer:

Step-by-step explanation:

4 0

2 years ago

Four expressions are shown:

Oksana_A [137]

The answer is 12x+4 and 2(6x+2)

Hope it helps.

7 0

3 years ago

Read 2 more answers

65% of 40 is what number?<br>ahh this was supposed to be done yesterdayyy..

Tasya [4]

Answer:

65% of 40 is 26

6 0

3 years ago

Read 2 more answers