- - - - - - - - - - - - - - - - - - - - - - - - -

✳︎ 5-3x=-10. what is x?

➪ First, subtract 5 on both sides:-
-3x=-10-5
❒ Which simplifies to:-
✩ -3x=-15
Divide by -3 on both sides:-
✩ x=5
So we conclude that the value of x is 5.
<h3>Good luck.</h3>
- - - - - - - - -- - - - - - - - - - - - - - - - - - -
Answer:
(a)
(b) 
Step-by-step explanation:
GIVEN: Auditoriums are often designed so that are fewer seats per row for rows closer to the stage. Suppose you are sitting in row
in an auditorium and notice that there are
seats in your row. It appears the row in front of you has
seats and the row behind you has
seats. Suppose this pattern continues throughout the auditorium.
TO FIND: a) How many seats are in the first row b) How many seats are in the
row?
SOLUTION:
total seats in 
total seats in

total seats in 
as it clearly form an A.P. with 
(a)
let total seat in first row be 
as total seats in 



total seats in first row are 
(b)
total seats in
be 



total seats in
row are 
Answer:
A sample size of 1380 should be obtained.
Step-by-step explanation:
Minimum sample size:
The minimum sample size is of:

In which z is the critical value, related to the confidence level, E is the desired margin of error,
and
are the proportions.
99% confidence level
So
, z is the value of Z that has a pvalue of
, so
.
Estimates of 22.6% male and 18.1% female from a previous year
This means that
.
Within 3 percentage points, minimum sample size:
This is n for which
. So



Rounding up:
A sample size of 1380 should be obtained.
Answer:
32
Step-by-step explanation:
=3.5:17
3.5×10 to remove decimal point then u multiply 17 by 10 too
=35:170
then you simply yo get 7:34