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Helen [10]
2 years ago
12

Kelsey babysits and earns a lat rate of $10 plus $1.50 per hour. How many hours did she babysit if she earned $16? (Write and so

lve an equation to solvethis problem.)
Mathematics
2 answers:
Elanso [62]2 years ago
8 0
4 because you already have 10 then 1.50(4)=6 you add the two then voilà
Tasya [4]2 years ago
6 0

Answer:

She babysitted for 4 hours.

Step-by-step explanation:

1.50x + 10 = 16

1.50x = 6

x = 4

Hope this helps!

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THE PROBABILITY OF AN EVENT IS 0.34. WHAT IS THE PROBABILITY THAT IT WILL NOT OCCUR.​
Irina18 [472]

Answer:

0.66

Step-by-step explanation:

1.00 - 0.34 = 0.66

The probability of certainty is 100%=1

If Probability(p)=0.34

then

0.34+Probability=1

Probability(!p)=1−0.34=0.66

5 0
2 years ago
Four cards are dealt from a standard fifty-two-card poker deck. What is the probability that all four are aces given that at lea
elena-s [515]

Answer:

The probability is 0.0052

Step-by-step explanation:

Let's call A the event that the four cards are aces, B the event that at least three are aces. So, the probability P(A/B) that all four are aces given that at least three are aces is calculated as:

P(A/B) =  P(A∩B)/P(B)

The probability P(B) that at least three are aces is the sum of the following probabilities:

  • The four card are aces: This is one hand from the 270,725 differents sets of four cards, so the probability is 1/270,725
  • There are exactly 3 aces: we need to calculated how many hands have exactly 3 aces, so we are going to calculate de number of combinations or ways in which we can select k elements from a group of n elements. This can be calculated as:

nCk=\frac{n!}{k!(n-k)!}

So, the number of ways to select exactly 3 aces is:

4C3*48C1=\frac{4!}{3!(4-3)!}*\frac{48!}{1!(48-1)!}=192

Because we are going to select 3 aces from the 4 in the poker deck and we are going to select 1 card from the 48 that aren't aces. So the probability in this case is 192/270,725

Then, the probability P(B) that at least three are aces is:

P(B)=\frac{1}{270,725} +\frac{192}{270,725} =\frac{193}{270,725}

On the other hand the probability P(A∩B) that the four cards are aces and at least three are aces is equal to the probability that the four card are aces, so:

P(A∩B) = 1/270,725

Finally, the probability P(A/B) that all four are aces given that at least three are aces is:

P=\frac{1/270,725}{193/270,725} =\frac{1}{193}=0.0052

5 0
3 years ago
What is an equation in slope-intercept form of the line that passes through the points (−2, −2) and (1, 7)?
Setler79 [48]
Your answer could be b or d but I think it is b using the equation y=mx +b
7 0
3 years ago
Read 2 more answers
Find the distance between the points (4, 6) and (2, -6). Round to the nearest tenth.
Deffense [45]

Answer:

The correct answer is B.12.2

Step-by-step explanation:

5 0
3 years ago
$1876 per month for 12 months<br> A) $22,512<br> B) $225.12<br> c) $1888<br> D) None of these
insens350 [35]

Answer:

The answer is A

Step-by-step explanation:

We need to multiply 1876 by 12. 1876 * 12 = 22, 512. That's our answer

5 0
3 years ago
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