Step-by-step explanation:
Since B is the midpoint of AC. So,
AB = BC
12x - 12 = 4x + 28
12x - 4x = 28 + 12
8x = 40
x = 40/8
x = 5
Now,
AB = BC = 4(5) + 28
= 20 + 28
= 48 cm
Now
AC = AB + BC
AC = 48 + 48
AC = 96 cm
Answer:
Below.
Step-by-step explanation:
Let x be the Annika's weekly income.
2/25 of x = 42
2x/25 = 42
x = 42(25/2)
x = 525
Her weekly income is $525.
49 = -7 (t + 1)
49 = -7t + 7
-7 -7
42 = -7t
÷ -7 ÷ -7
-6 = t
t = -7
Answer: 620 r4 (620.6, the decimal 6 has a line over it because it is repeating)
<u>Step-by-step explanation:</u>
Using long division:
<u> 6 2 0 </u>r.4
6 ) 3 7 2 4
<u> - 36</u> ↓
1 2
<u> - 12 </u> ↓
0 4
- <u> 0 </u>
4