Answer: 60°
Step-by-step explanation:
apply concept: the interior angle sum of triangle is 180°
x+x+x=180
3x=180
x=60
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this is also an equilateral triangle which if you know it, you will know that each angles are all 60°
Answer:
let the numbers be xy
general form of the number =10x+y
sum of digits of a number =14
x+y=14………[1]
if 18 is added to the number, then digits are interchanged
10x+y+18=10y +x
9x-9y=-18
X-y=-2………[2]
the linear equations are 1) x+y=14
2) X-y=-2
adding [1],[2]
2x=12
x=6
x+y=14
y=14-x
y=14-6
y=8
there fore the number =10*6+8
=68
check:-
1)6+8=14
2)68+18=86
I hope this helped!
Step-by-step explanation:
Answer:
6 service contracts were sold.
Step-by-step explanation:
A salesperson earned $300 a week plus a bonus of $18 for each service contract sold.
Weekly Salary = 300W + 18X
where W = number of weeks and X = number of service contracts sold.
the pay one week was $408 how many service contracts were sold?
Weekly Salary = $408
W = 1 week
408 = 300(1) + 18X
408 = 300 + 18X
408 - 300 = 18X
108 = 18X
108/18 = X
6 = X
