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4 years ago

14

I don't understand what this means , please help

1 answer:

ella [17]4 years ago

6 0

Perpendicular to. that's what it means

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Child admission is $5.70 and adult admission is $9.50. Twice as many adult tickets ad child tickets were sold. for a total of $5

makkiz [27]

Let the number of child tickets sold be x, and number of adult tickets be y, then
5.70x + 9.50y = 543.40 . . . (1)
y = 2x . . . (2)

Putting (2) into (1), gives
5.7x + 9.5(2x) = 543.4
5.7x + 19x = 543.4
24.7x = 543.4
x = 543.4/24.7 = 22

Therefore, 22 child tickets were sold.

4 0

4 years ago

Please help ASAP!!!!!

Sedaia [141]

Answer: OPTION C

Step-by-step explanation:

Complete the square:

Having the equation in the form $ax^2+bx=c$ , you need to add $(\frac{b}{2})^2$ to both sides of the equation:

You can identify that "b" in the equation $x^2+6x=5$ is:

$b=6$

Then:

$(\frac{6}{2})^2=3^2$

Add this to both sides:

$x^2+6x+3^2=5+3^2$

Rewriting, you get:

$(x+3)^2=14$

Solve for "x":

$x+3=\±\sqrt{14}\\\\x+3=\±\sqrt{14}\\\\x=\±\sqrt{14}-3$

Then, the solutions are:

$x=-3+\sqrt{14}\ or\ x=-3-\sqrt{14}$

8 0

3 years ago

The money used in Tajikistan is called the Somoni. The exchange rate is $7 = 22 Somoni. Find how many dollars you would receive

nika2105 [10]

Answer:

B: $21

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Is the inequality always, sometimes, or never true? <br><br> 9x + 2(2 + x) < 5 + 9x

ehidna [41]

Sometimes is t gtg e inequality

5 0

3 years ago

The original cost of Sam’s investment is $10,000. After liquidating the investment, Sam calculated his real return to be $10,700

Sati [7]

Answer:

7%

Step-by-step explanation:

Step one:

given data

The original cost of Sam’s investment is $10,000

Sam calculated his real return to be $10,700

Required:

the interest made from the investment is

10700-10000= $700

Step two:

The ROI is a percentage that tells us the interest made

interest/investment*100

=700/10000*100

=0.07*100

= 7%

The ROI is 7%

7 0

3 years ago