All categories

2 years ago

Kyle leaves a 15% tip for lunch bill of $12 what amount tip does Kyle leave

Mathematics

2 answers:

Aleonysh [2.5K]2 years ago

8 0

Kyle leaves 1.80 because you have to do 0.15*12

Sunny_sXe [5.5K]2 years ago

4 0

Kyle leaves $1.8 because 15% of $12 is $1.8

You might be interested in

If 9^(1 - x) =27^Y and x-y equals to -11 / 2 find the value of x + y

777dan777 [17]

Answer:

x = -2.9

y = 2.6

x+y = -2.9+2.6

= -0.3

8 0

2 years ago

Which of the following names the figure in the diagram below?

Inessa05 [86]

Answer:

Step-by-step explanation:

its the only one that make sense

6 0

2 years ago

One number is 6 greater than another. the product of the number is 55. find the numbers

Basile [38]

Here's how to do this problem:

6+ x= 55
-6 -6
x=49

5 0

2 years ago

If m∠XWY=20∘,m∠XWZ=40∘, and XY = 16, what is the value of YZ?

Blababa [14]

Answer:

YZ=16

Step-by-step explanation:

Because they are parallel

8 0

2 years ago

The national average for the math portion of the College Board’s Scholastic Aptitude Test

Alex73 [517]

Answer:

a) 0.1587

b) 0.023

c) 0.341

d) 0.818

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 515

Standard Deviation, σ = 100

We are given that the distribution of SAT score is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

a) P(score greater than 615)

P(x > 615)

$P( x > 615) = P( z > \displaystyle\frac{615 - 515}{100}) = P(z > 1)$

$= 1 - P(z \leq 1)$

Calculation the value from standard normal z table, we have,

$P(x > 615) = 1 - 0.8413 = 0.1587 = 15.87\%$

b) b) P(score greater than 715)

$P(x > 715) = P(z > \displaystyle\frac{715-515}{100}) = P(z > 2)\\\\P( z > 2) = 1 - P(z \leq 2)$

Calculating the value from the standard normal table we have,

$1 - 0.977 = 0.023 = 2.3\%\\P( x > 715) = 2.3\%$

c) P(score between 415 and 515)

$P(415 \leq x \leq 515) = P(\displaystyle\frac{415 - 515}{100} \leq z \leq \displaystyle\frac{515-515}{100}) = P(-1 \leq z \leq 0)\\\\= P(z \leq 0) - P(z < -1)\\= 0.500 - 0.159 = 0.341 = 34.1\%$

$P(415 \leq x \leq 515) = 34.1\%$

d) P(score between 315 and 615)

$P(315 \leq x \leq 615) = P(\displaystyle\frac{315 - 515}{100} \leq z \leq \displaystyle\frac{615-515}{100}) = P(-2 \leq z \leq 1)\\\\= P(z \leq 1) - P(z < -2)\\= 0.841 - 0.023 = 0.818 = 81.8\%$

$P(315 \leq x \leq 615) = 81.8\%$

4 0

2 years ago