One positive plus another is always positive because:
+ and + is +
+ and - is -
- and - is +
Solution: the second number is 90
Step by step solution:
A=A
B=5A
C=5A-13
A+5A+5A-13=185
11A-13=185
11A=198
A=18
A=18
B=90
C=77
Hope that helps :)
Mark and Don have 18 and 92 marbles respectively.
<h3>What is the solution of the equation?</h3>
Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side. It demonstrates the equality of the relationship between the expressions printed on the left and right sides. We have LHS = RHS (left hand side = right hand side) in every mathematical equation. To determine the value of an unknown variable that represents an unknown quantity, equations can be solved.
Let the number of marbles Mark has be x.
According to the question,
Don has (5x+2) marbles.
Total number of marbles=110
Thus, the required equation is:
x+5x+2=110
6x=108
x=108/6
x=18
Mark has 18 marbles.
Don has (5*18+2)=92 marbles.
Learn more about equation here:
brainly.com/question/2972832
#SPJ4
Answer:
D..... 3 lines of Symmetry
Let the number of adults equal x, and the number of children equal 5x.
26(5x) + 69x = 94908
194x = 94908
x = approx. 489
About 489 adults bought tickets.
