Answer:add me on the gram at n.preme_
Step-by-step explanation:
10x3=30 hours
30/4= 7.5 hours to study for each exam
Answer:
sure
Step-by-step explanation:
1. x = 22, 2. x = 1, 3. x = 10
1.
2x - 28 = 16 ( add 28 to both sides )
2x = 44 ( divide both sides by 2 )
x = 22 ← solution
2.
12 = 5x + 7 ( subtract 7 from both sides )
5 = 5x ( divide both sides by 5 )
1 = x ⇒ x = 1 ← solution
3.
140 = 10x + 4x ( collect like terms on right side )
140 = 14x ( divide both sides by 14 )
10 = x ⇒ x = 10 ← solution
Answer:
43.98 cm
Step-by-step explanation:
Circumference is π x diameter
Diameter is 2 x radius
276.32/π = 87.955 (3dp)
87.955/2 = 43.978 (3dp)
43.98cm = radius