gwenspooner85

Guest, you didn't even say for which question the answer is 8...

Let x be the number of child tickets sold and 2x the number of adult tickets sold.

We form an equation for the total money:

5.1x+9(2x)=831.6

5.1x+18x=831.6

23.1x=831.6

x=36 child tickets

I think this is 5C2 because out of the 5 fingers, you can only choose 2 to put the rings on. So:

5!/3!2!

=(5*4)/2

=20/2

=10

I am not entirely sure if this is correct....

Substitute 4 for t in the given function:

P(t)=3.14t+71

P(t)=3.14(4)+71

P(t)=12.56+71

P(t)=83.56

Substitute 7 for t in the given function:

P(t)-3.14t+71

P(t)=3.14(7)+71

P(t)=21.98+71

P(t)=92.98

In 4 hours the waitress makes $83.56 and 7 hours she makes $92.98.

1. a \star b= 2a+3b

We plug in 4 and 3 for a and b. We have:

4 \star 3=2(4)+3(3)

4\star3=8+9

4\star3=17.

2. We plug in 50 for N in the given equation. Our answer is 8.

3. We can add all  equations together to get 2a+2b+2c=0. Then a+b+c=0. c must be -8, a must be 3, and b is 5. The product of abc is -8(3)(5)=-8*15=-120.

4. We prime factorize 756 to get 2^2 • 3^3 • 7. Mode is the number that appears most in the set. Since 3 appears 3 times in the prime factorization, which is the most, 3 is the mode of his list.

Volume of a pyramid is lwh/3. We plug in the length, width, and height into the equation.

lwh/3

=4(6)(6)/3

=144/3

=48 ft^3

It's readable, what do you mean? I can read it.

Part A: Net B

Part B: AB: 3, BC: 5, CD: 5

Part C: 3*4+5(3+4+5)=12+5(12)=12+60=72.

To solve this:

y=x+4 multiplied by 3 is 3y=3x+12. We can subtract the second equation from the first to get 0=5x+10. Then we solve for x.

0=5x+10

5x=-10

x=-2

Then we plug x=-2 into either of the equations to find y. y=x+4 will be simpler to work with so:

y=x+4

y=-2+4

y=2

Therefore x=-2, y=2.