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2 years ago

You had $23 to spend on three raffle tickets. After buying them you had $17.

Mathematics

2 answers:

Darya [45]2 years ago

4 0

Answer:

Each raffle ticket cost $2.

Step-by-step explanation:

Figure out how much you spent on all the tickets

23-17= 6

Divide the amount of money you spent by the amount of tickets bought to get the unit price

6/3=2

Hope this helps:) Have a good day!

Viktor [21]2 years ago

3 0

Answer:

Step-by-step explanation:

$23-3x=17$

$-3x=-6$

$x=2$

Therefore, each raffle ticket cost $2.

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Plz help me 75 points for the 2 questions!!!

liraira [26]

Answer:

The system of equations:

2x + 7y = -11
3x + 5y = -22

Solve by elimination.

Triple the first equation, double the second one, subtract the second from the first and solve for y:

3(2x + 7y) - 2(3x + 5y) = 3(-11) - 2(-22)
6x + 21y - 6x - 10y = -33 + 44
11y = 11
y = 1

Find x:

2x + 7*1 = -11
2x = -11 - 7
2x = -18
x = -9

The solution is:

x = -9, y = 1

Simplifying in steps:

8u - 29 > -3(3 - 4u)
8u - 29 > - 9 + 12u
12u - 8u < -29 + 9
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2 years ago

What is the mean absolute deviation of the data set 12, 9, 5, 12, 8, 3, 3,12

Liono4ka [1.6K]

The correct answer is 3.25

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3 years ago

Jacob bought one bulb of elephant garlic for $2. How many bulbs can Stephanie buy if she has $12?

Marysya12 [62]

Answer:

She can buy six bulbs of garlic

Step-by-step explanation:

Well you know that each bulb of garlic is 2 dollars. You also know that Stephanie has 12 dollars. In order to solve this you need to take the amount of money Stephanie has and divide it by the price per bulb in order to find out how many bulbs she can buy.

12/2 = 6

She can buy 6 bulbs of garlic

5 0

2 years ago

Read 2 more answers

For the cost function c equals 0.1 q squared plus 2.1 q plus 8, how fast does c change with respect to q when q equals 11? Det

Soloha48 [4]

Answer:

Rate of change of c with respect to q is 4.3

Percentage rate of change c with respect to q is 9.95%

Step-by-step explanation:

Cost function is given as, $c=0.1\:q^{2}+2.1\:q+8$

Given that c changes with respect to q that is, $\dfrac{dc}{dq}$ . So differentiating given function,

$\dfrac{dc}{dq}=\dfrac{d}{dq}\left (0.1\:q^{2}+2.1\:q+8 \right)$

Applying sum rule of derivative,

$\dfrac{dc}{dq}=\dfrac{d}{dq}\left(0.1\:q^{2}\right)+\dfrac{d}{dq}\left(2.1\:q\right)+\dfrac{d}{dq}\left(8\right)$

Applying power rule and constant rule of derivative,

$\dfrac{dc}{dt}=0.1\left(2\:q^{2-1}\right)+2.1\left(1\right)+0$

$\dfrac{dc}{dt}=0.1\left(2\:q\right)+2.1$

$\dfrac{dc}{dt}=0.2\left(q\right)+2.1$

Substituting the value of $q=11$ ,

$\dfrac{dc}{dt}=0.2\left(11\right)+21.$

$\dfrac{dc}{dt}=2.2+2.1$

$\dfrac{dc}{dt}=4.3$

Rate of change of c with respect to q is 4.3

Formula for percentage rate of change is given as,

$Percentage\:rate\:of\:change=\dfrac{Q'\left(x\right)}{Q\left(x\right)}\times 100$

Rewriting in terms of cost C,

$Percentage\:rate\:of\:change=\dfrac{C'\left(q\right)}{C\left(q\right)}\times 100$

Calculating value of $C\left(q \right)$

$C\left(q\right)=0.1\:q^{2}+2.1\:q+8$

Substituting the value of $q=11$ ,

$C\left(q\right)=0.1\left(11\right)^{2}+2.1\left(11\right)+8$

$C\left(q\right)=0.1\left(121\right)+23.1+8$

$C\left(q\right)=12.1+23.1+8$

$C\left(q\right)=43.2$

Now using the formula for percentage,

$Percentage\:rate\:of\:change=\dfrac{4.3}{43.2}\times 100$

$Percentage\:rate\:of\:change=0.0995\times 100$

$Percentage\:rate\:of\:change=9.95%$

Percentage rate of change of c with respect to q is 9.95%

7 0

2 years ago

Answer if you only know

salantis [7]

⇒ Based on the given rules of "Fire-Water-Sponge," outcomes 1, 5, and 8 are outcomes where you lose.

Therefore, 1,5, and 8 are the subset of outcomes where you lose, and we now can say that the statements "The subset consists of all of the outcomes where your friend wins" and "The subset consists of all of the outcomes where you do not win, and there is not a tie" accurately describe the subset.


Furthermore, because every subset outcome involves you losing, the statements "The subset consists of all of the outcomes where you win" and "The subset consists of all of the outcomes where there is a tie" do not accurately describe the subset.

$\star$ The statements that accurately describe the given subset of the sample space are:

$\star$ The subset consists of all of the outcomes where your friend wins.

 $\star$ The subset consists of all of the outcomes where you do not win and there is not a tie.

6 0

2 years ago

Read 2 more answers