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avanturin [10]
3 years ago
13

Riley has 15 tickets for rides at the

Mathematics
2 answers:
postnew [5]3 years ago
7 0

Answer:

105 tickets more

Step-by-step explanation:

10x3=30

30x4=120

120-15=105

AfilCa [17]3 years ago
3 0

Answer:

105

Step-by-step explanation:

Basically she wants to ride each of the 10 ride 3 times

So she will ride 30 times

Each ride = 4 tickets

So 30 rides = 120 tickets

She already has 15 tickets, so to find the amount of tickets Riley needs, we need to do 120-15, which is 105

Hope this helps your brother :)

Have a great day!

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The answer is <span>16x2 − 8x + 1
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To be a perfect square trinomial, the rule must be used:
(a - b)² = a² - 2ab + b²

Let's check all choices
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3 years ago
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BaLLatris [955]
This relates to ur previous question....there were 85 innings last question and 130 walks + hits which gave a whip score of 1.53......so if he wants to lower his whip (without changing his walks or hits) to 1.3....
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he would have to pitch 15 more innings without any walks or hits to reach a goal of 1.3 whip score. This is not a reasonable goal.....have u ever seen a baseball game where a pitcher pitched 15 innings without any walks or hits ? And since a game consists of 9 innings....he would be 3 innings short of 2 games (thats if they dont go into overtime), and he would have to pitch a no hitter....and that is highly unlikely.
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A survey of 1282 student loan borrowers found that 440 had loans totaling more than $20,000 for their undergraduate education. G
Xelga [282]

Answer:

The 98% confidence interval of the proportion = (0.312, 0.374)

Step-by-step explanation:

(Give answers accurate to 3 decimal places.)

The formula for Confidence Interval of Proportion is given as:

p ± z × √p(1 - p)/n

Where p = Proportion = x/n

x = 440

n = 1282

p = 440/1282 = 0.34321372854

Approximately = 0.343

z = z-score of 98 % confidence interval

= 2.326

Confidence Interval =

= 0.343 ± 2.326 × √0.343(1 - 0.343)/1282

= 0.343 ± 2.326 × √0.225351/1282

= 0.343 ± 2.326 × √0.00017578081

= 0.343 ± 2.326 × 0.01325823555

= 0.343 ± 0.03083865589

0.343 - 0.03083865589

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Therefore, the 98% confidence interval of the proportion = (0.312, 0.374)

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Answer:

427 candy bars.

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320 ÷ 0.75 = 426.66 (Rounds up to 427)

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