Answer:
if x= 3, so it's 32 if x= 2, so it's 7
Step-by-step explanation:
Hello :
14 = 2×7
21 = 3×7
<span> the least common denominator for the fractions 9/14and 2\21 is : 6×7=42</span>
(x-9)(x+7)=0
x-9=0 or x+7=0
x=9 or x=-7
:)
Answer:
a = 2
Step-by-step explanation:
In an AP the difference between consecutive terms is common (equal), thus
t₂ - t₁ = t₃ - t₂ , that is
2a + 1 - (a + 1) = 4a - 1 - (2a + 1) ← distribute and simplify both sides
2a + 1 - a - 1 = 4a - 1 - 2a - 1
a = 2a - 2 ( subtract 2a from both sides )
- a = - 2 ( multiply both sides by - 1 )
a = 2
Answer:
There are 5 yellow balls
Step-by-step explanation:
40/4 = 10
10/2 = 5
