The probability of having a winning raffle ticket is 20%. If you bought 50 tickets, how many winning tickets should you expect to have A.3 tickets B.8 tickets C.10 tickets D.20 tickets

Answers

Answer 1

Answer: 20% can be represented as 1/5.

Therefore you're expected to win 1 ticket out of every 5 you purchase. So if you purchase 50 you can expect to win 10 tickets. Therefore the answer is C.

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fie abc un triunghi cu masura unghiului a de 90 de grade ab este 6 cm bc=10 si ca=8 calculati;sin b; tg b; sin c; tg c; cos b; ctg b; cos c; ctg c

Answers

sinB = cosC = AC / BC = 8/10 = 4/5;
tgB = ctg C = AC/AB = 8/6 = 4/3, because we use T. Pitagora for calculating AB;
sinC = cosB = AB/ BC = 6/10 = 3/5;
tgC = ctgB = AB/ AC = 6/8 = 3/4.

What the solution set (x+9)^2=169 of this quadratic equations by extracting the roots?

Answers

Answer:

x = - 22, x = 4

Step-by-step explanation:

Given

(x + 9)² = 169 ( take the square root of both sides )

x + 9 = ± $√(169)$ = ± 13 ( subtract 9 from both sides )

x = - 9 ± 13

Thus

x = - 9 - 13 = - 22

x = - 9 + 13 = 4

If sin ⁡x=−1/2, and 270°* If 180°<θ<270°, and sin⁡θ=−3/4, what is the value of sin(−θ)?

Answers

Answer:

For each of the three basic trig functions, (sin, cos, tan) there are three more which act as their reciprocals. (csc, sec, and cot respectively)

Reciprocals, of course, are flipped fractions. If you have some number x, the reciprocal can be expressed as .

An important property of reciprocals is that if you mutliply them together they will cancel out--take for example.

Since secӨ is literally defined as the reciprocal of cosӨ, it is evident that

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Step-by-step explanation:

Kerri is making doll clothes for a holiday craft the wholesale cost of the materials for one outfit is 9.38 if she sells an outfit for 15 what is the percent of markup round to the nearest percent

Answers

Answer:

The markup is the difference between the selling price and the cost price, divided by the cost price, then multiplied by 100 to get a percentage.

The difference between the selling price and the cost price is $15 - $9.38 = $5.62.

So, the percent of markup is ($5.62 / $9.38) x 100 = 59.91%.

Rounding to the nearest percent, we get 60%. So, Kerri is marking up the doll clothes by 60%.

A number is multiplied by 10. Then 32 is added to the product. This sum is then divided by 4. The answer is 28. A number is multiplied by 10. Then 32 is added to the product. This sum is then divided by 4. The answer is 28. A number is multiplied by 10. Then 32 is added to the product. This sum is then divided by 4. The answer is 28.

Answers

Set up a problem: (Nx10+32)/4=28. Divide by 4: 10N/4+8=28. Subtract 8: 10N/4=20. Multiply by 4: 10N=80. Divide by 10: N=8 :)

im not sure what you have to do here. Any examples what other answer looked like of similar questions?

What is the value of b that will make the system of equations consistent when x = 2?8x + 3y = 14
bx + 2y = 6