The number 8A3BC5 is a perfect square of a number that is divisible by 3. Find A + B + C if A, B, and C are different digits.
1 answer:
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So it seems as if the first problem is asking this:
.
If x=0.15, then 11/15*(0.15) is 0.11 or 11/100.
The second problem is asking:
To solve algebraically, you want to get rid of the denominators under the x's. To do so, you want to multiply by the Least Common Multiple (LCM) of the denominators. For 3 and 4, the LCM is 12. Multiply everything by 12 to get:
3x+6=4x+2
Now, solve for x
Subtract 4x from both sides:
-x+6=2
Subtract 6 from both sides:
-x=-4
Multiply by -1 on both sides:
x=4.
If x=0.15, then 11/15*(0.15) is 0.11 or 11/100.
The second problem is asking:
To solve algebraically, you want to get rid of the denominators under the x's. To do so, you want to multiply by the Least Common Multiple (LCM) of the denominators. For 3 and 4, the LCM is 12. Multiply everything by 12 to get:
3x+6=4x+2
Now, solve for x
Subtract 4x from both sides:
-x+6=2
Subtract 6 from both sides:
-x=-4
Multiply by -1 on both sides:
x=4.
Answer:
<em>V= 1/3(π.r².h)</em><em> </em><em>formula</em>
= 1/3×( 22/7 × 7²×9)
= 1/3× (22/7 × 49 × 9)
= 1/3×(22×7×9)
=1/3× (154×9)
=1/3× 1386
= <em>462 cubic </em><em>yards</em>
Step-by-step explanation:
Note:
π = 3,14 or 22/7
in trigonometry the value of π is 180 °
