Answer:
15 students still haven't given their speeches
Step-by-step explanation:
2/3 of 60 is 40
60 - 40 = 20 left
1/4 of 20 is 5
20 - 5 = 15
15 students still haven't given their speeches
Simple...
you have: 15x+2=17
Isolate the variable (x)-->>>>
15x+2=17
-2 -2
15x=15
x=1
To check it-->>>
15(1)+2=17
17=17
Thus, your answer.
Answer:
is the equivalent expression as
is equal to
.
Step-by-step explanation:
Considering the expression

As we know that
- Like terms are said to be the terms which hold the same variables raised to the same power.
- For example,
and
are like terms as they contain the same variable
raised to the same power.
Lets solve the expression





Therefore,
is the equivalent expression as
is equal to
.
Keywords: equivalent expression, like terms
Learn more about equivalent expression from brainly.com/question/8902137
#learnwithBrainly
Answer:
see explanation
Step-by-step explanation:
The median is the middle value of the data set in ascending order. If there is no exact middle then the median is the average of the values either side of the middle.
Given
3 8 14 19 22 29 33 37 43 49
↑ middle is between 22 and 29
median =
=
= 25.5
The upper quartile
is the middle value of the data to the right of the median.
29 33 37 43 49
↑
= 37
The lower quartile
is the middle value of the data to the left of the median.
3 8 14 19 22
↑
= 14
The min is the smallest value in the data set, that is 3
The max is the largest value in the data set, that is 49
The 5 number summary is
3, 14, 25.5, 37, 49
R/ r+ 15 = 3/8
Cross multiply: top of one side multiplied by bottom of other side:
R x 8 = 3 x r+ 15
Simplify:
8r = 3r + 45
Subtract 3r from both sides:
5r = 45
Divide both sides by 5:
R = 9