2x-5=49
move -5 to the other side
sign changes from -5 to +5
2x-5+5= 49+5
2x=49+5
2x= 54
divide both sides by 2 to get x by itself
2x/2= 54/2
cross out 2 and 2, divide by 2 and then becomes 1*1*x=x
54/2= x
Answer:
x= 27
The perimeter of a triangle with length of sides a, b and c:
P = a + b + c
a = 2, b = 5, c = 10x
Substitute:
P = 2 + 5 + 10x = 7 + 10x
<h3>Answer: 7 + 10x</h3>
Answer:
lets refer to the # on the #line as spaces. -6 is 6 spaces left of 0. -2 is 2 spaces left of 0
Answer:
n(AUB)=n(A)+n(B)–n(AnB)
n(AUB)=n⁰(A)+n⁰(B)+n(AnB)
Step-by-step explanation:
This is the formula i have learned. Hope this will help u. U can use them according the question type.
Answer:
122.67 average
Step-by-step explanation:
Mean = (every value added up)/(# of values)
Mean = (105 + 2(110) + 2(112) + 3(113) + 2(115) + 5(116) + 4(117) + 7(118) + 5(120) + 5(121) + 4(125) + 5(126) + 2(128) + 130 + 3(132) + 134 + 3(135) + 2(140) + 2(141) + 150)/60
= 7360/60
= 122.67
I had trouble understanding the data but I hope I did this right!
