The pattern rule for a sequence(pattern) is "Start at 10, double the number before this one. and subtract 1". Write the first 5 numbers in this sequence(pattern). Please help with this question:)
Answers
Answer:
10, 17, 31, 59, 117
Step-by-step explanation:
You start at 10 , but go one number before it so 9 and double it so 18 but than subtract 1 so you get 17. So-on-and-so-forth
Answer:
Width of rectangle is 25 cm.
Step-by-step explanation:
Given :-
A wire bend in form of square of side 30 cm.
Then wire is again bend in form of rectangle of length 35 cm.
To find :-
Width of the rectangle.
Solution :-
Here, Concept is : If we are bending wire in form of square than again bending it in rectangle. Than, perimeter of square will equal to perimeter of rectangle because we are not increasing length of wire by one measure we are bending it in square and rectangular shape.
So,
Perimeter of square = 4 × side
⟶ Perimeter = 4 × 30
⟶ Perimeter = 120
Thus,
Perimeter of square is 120 cm.
According to concept, Perimeter of square and perimeter of rectangle are equal.
So, Perimeter of rectangle is 120 cm.
Let, Breadth or width or rectangle be x cm.
We know,
Perimeter of rectangle = 2(Length + Breadth)
⟶ 120 = 2×(35 + x)
⟶ 120 = 70 + 2x
\⟶ 120 - 70 = 2x
⟶ 50 = 2x
⟶ 50/2 = x
⟶ x = 25
We take, Width of rectangle be x.
Therefore,
Width of rectangle is 25 cm.