Answer:
In Heather's solution to the problem, she wrote and solved an equation.
Her work is:
Step 1: 1.08(x +9.01 +0.98 +5.01) = 21.87
Solving like terms
1.08(x+15}=21.87
dividing both side by 1.08
we get
x+15=21.87/1.08
x+15=20.25
subtracting both side by 13.9198
x=20.25-15
x=5.25
According to correction
;
Option 1st
<u>yes,it is correct</u>
option a is right.
Step-by-step explanation:
because u can also check by putting the value of x = 5.25 .it satisfies both sides.
5. x = 9
6. x = 12
7. x = 15
8. x = 11
5. 90-56 = 34
34 = 3x + 7
27 = 3x
x = 9
6. 90 - 48 = 42
42 = 3x + 6
36 = 3x
x = 12
7. 90 - 47 = 43
43 = 2x + 13
30 = 2x
x= 15
8. 3x + 5x + 2 = 90
8x = 88
x = 11
31.4 cm
Hence, length of arc = 31.4 cm.
B
1.) 1/2 or 50%
Lemme take sum time to do 2, 3, and 4!
