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Shalnov [3]
3 years ago
9

A meal costs $30 before tax and tip.

Mathematics
1 answer:
Korolek [52]3 years ago
5 0

Answer:

33.48

Step-by-step explanation:

30*0.07=2.10

30-2.10=27.90

27.90*0.20=5.58

27.90+5.58

33.48

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A survey of a group of seventh graders and a group of teachers at a local middle school asked how many siblings they each have.
mihalych1998 [28]

Answer:

1.5

Step-by-step explanation:

Attached to this answer is the diagram of the box plot described in the question, and the means from the plot are calculated thus;

Students;    no. of siblings

student 0     2

student 1      4

student 2     7

student 3     5

student 4     2

Total             20

Mean no. of siblings = (total number of siblings) ÷ (total number of students)

Note that number of students here are the once that had at least one sibling, others without siblings are not used in the calculation, hence 5 students (student-0 to student-4) make up total number of students, while the remaining 4 students (student-4 to student-9) are disregarded.

Therefore, mean = 20 ÷ 5 = 4 siblings.

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3 years ago
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What is the measure of BGD?
slamgirl [31]

Answer:

90 degrees

Step-by-step explanation:

Angle BGD is supplementary with angle DGE.

BGD + DGE = 180

Since angle DGE is a right angle, then Angle BGD must also be a right angle:

BGD + 90 = 180

BGD = 90

7 0
3 years ago
Rob has a collection of 800 baseball cards. 30% of the cards feature pitchers. 42% of the cards feature infielders. The remainin
Black_prince [1.1K]

Answer:224

Step-by-step explanation:

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3 years ago
Divide: (-7x+x^2+15)÷(-3+x)
kakasveta [241]
Since the divisor is in the form (x + #) or (x - #), This can be done by synthetic division.
First put the polynomial ion descending order: x^2 - 7x + 15
Take the coefficients of the terms and follow these steps:

3 |  1 -7  15
         3  -12
___________  Bring down the 1, multiply the 3 by the 1 and place under the
     1  -4    3       -7, then add.
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       The bottom row is our answer. Since the problem started with a second power, the answer will start with a first power.
The bottom row are the coefficients of the terms and the last number is the remainder.
x - 4 remainder 3 ALSO WRITTEN   x - 4 + 3/(x -3)
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What is the X intercept, Y intercept, equation and slope of (-9,0), (0,3) ​
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Answer: x= -9 y= 3

Step-by-step explanation:

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