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sineoko [7]
2 years ago
7

a family of twenty purchased tickets to the country fair.tickets for adult cost $8 and tickets for children cost $4.if the total

cost of the tickets was $100,how many family members were adults and children?explain how you solved the question.
Mathematics
1 answer:
Nonamiya [84]2 years ago
3 0

Answer:

5 adults

15 children

5x8=40

15x4=60

40+60=100

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I NEED HELP - HOMEWORK
postnew [5]

Bag 1:  2R, 1B

Bag 2: 1R, 1B, 2Y

Draw 1 from each bag

a) P(same color)

We have 2/3 chance of drawing R from bag 1 and a 1/4 chance of drawing R from bag 2

P(both R) = (2/3)(1/4)  = 1/6

We have a 1/3 chance of drawing B from bag 1 and 1/4 chance of B from bag 2

P(both B) = (1/3)(1/4) = 1/12

P(same color) =1/6 + 1/12 = 3/12 = 1/4

Answer: a) 1/4

b) P(exactly one R)

Same story except we look at the complement in bag 2

We have 2/3 chance of drawing R from bag 1 and a 1/4 chance of drawing R from bag 2, so a 3/4 chance of NOT drawing R.

P(1st red, second not red) = (2/3)(3/4) = 1/2

We have 1/3 chance of drawing B from bag 1, so 1/3 chance of drawing NOT red from bag 1.  We have a 1/4 chance of drawing R from bag 2, so

P(1st blue, second not blue) = (1/3)(1/4) = 1/12

P = 1/2 + 1/12 = 6/12 + 1/12 = 7/12

Answer: 7/12

6 0
3 years ago
Evaluate 9 + 11g - 4h when g = 2 and h = 7
Bingel [31]
Substitute the variables for the values given.

9 + 11(2) - 4(7) =
9 + 22 - 28 =
31 - 28 =
3

So, 3 is the answer.
6 0
3 years ago
Read 2 more answers
What is 7179.086667 rounded to the nearest hundredth?
professor190 [17]

Answer:

I'm pretty sure it's 7179.1

Step-by-step explanation:

7179.1

3 0
2 years ago
Jen borrowed 1500 from her parents for car repair. She plans to take 10% of her $450 weekly income to pay them back. At this rat
7nadin3 [17]

Answer:

10% of %450 is $45

SO 1500 divide by $45 is 33.33333

SO it will take a little over 33 weeks

Step-by-step explanation:


5 0
3 years ago
a trapezoid has base lengths of 6 and 15 centimeters with an area of 136.5 square centimeters. What is the height of the trapezo
MrRa [10]
•*Ok first let me show you the formula for the Area of the trapezoid.
A=a+b/2 h.(I will be using the letter x for the multiplication sign)
 
*And here is the formula to find the height of a trapezoid
h=2 x A/a+b (2 times the Area over base "a" plus base "b")


*We need to plug in the numbers: h = 2 x 136.5/6+15
*Next, we add the two bases to get 21: 6+15=21 (h=2 x 136.5)  
*Then, divide the total of the two bases (21) from the area to get 6.5: 136.5/21-6.5
*Finally we multiply 2 by 6.5: 2 x 6.5= 13
The height if this trapezoid is 13.

Hope this helps you ☺
3 0
3 years ago
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