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3 years ago

7

sam goes to lunch with a friend. the total cost of the lunch is $15 . sam leaves $1.50 as a tip. what percent of total did he ti

p

1 answer:

gavmur [86]3 years ago

7 0

It should be a 10% tip. To simplify the answer, The decimal moves one space (which would be equal to a tenth) so it’s a 10%

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The volume of soda a dispensing machine pours into a 12-ounce can of soda follows a normal distribution with a mean of 12.30 oun

LiRa [457]

Answer:

The correct answer is "0.9332".

Step-by-step explanation:

Given that:

$\mu=12.30$

$\sigma=0.20$

So,

= $P(X>12)$

= $1-P(X$

= $1-P(\frac{X-\mu}{\sigma} < \frac{12-12.30}{0.20} )$

= $1-P(Z$

= $1-P(Z$

= $1-0.0668$

= $0.9332$

7 0

3 years ago

Evaluate 6x+24 for x=8

crimeas [40]

Answer:

72

Explanation:

x = 8

6x + 24

Insert 8 for x

6 · 8 + 24

Multiply

6 · 8 = 48

Add

48 + 24 = 72

Therefore 6x + 24 = 72

7 0

4 years ago

Is 4(5c + 3) and 9c + 7 equivalent?

Otrada [13]

Answer:

No sir

Step-by-step explanation:

when you see Parentheses beside a number it means your mutiplying

your answer would be: 20c + 12

3 0

3 years ago

Read 2 more answers

This is a way of expressing a relationship between x and y in set notation. It is called an ____ pair.

motikmotik

I think its called a linear pair

3 0

4 years ago

Read 2 more answers

Ayso has 18 8th grade boys teams this year but this is a 28% decrease from the prior year. How many 8th grade teams were there l

NikAS [45]

Answer:

23pupils

Step-by-step explanation:

Given parameters:

Number of 18th grade boys this year = 18

Percentage decrease = 28%

Unknown:

How many 8th grade teams were there last year = ?

Solution:

Since this is a percentage decrease, ;

Number of pupils this year = Number of pupils last year - (28% x 18 )

18 + (28% x 18 ) = Number of pupils last year

Number of pupils last year = 23pupils

4 0

3 years ago