Your equations would be
c+d=10
5c+6d=56 (c= # of cats, d= # of dogs) Then solve
I am using elimination and multiply the first equation by -5
-5c-5d=-50
5c+6d=56
Then eliminate
-d=-6 Divide by -1 d=6
Then solve for c
c+6=10
c=4
Hope this helps!
3.54 • 10*-2
Step-by-Step Solution:
Place the decimal point after the first non-zero number, and multiply by 10 to the appropriate power I.e., how many places you would need to move the decimal to get the original number.
Answer:
3x + 6y
Step-by-step explanation:
CLT
<em><u>9</u></em><em><u>x</u></em><em><u>-</u></em><em><u>7</u></em><em><u>x</u></em><em><u>+</u></em><em><u>x</u></em><em><u>+</u></em><em><u>3</u></em><em><u>y</u></em><em><u>-</u></em><em><u>2</u></em><em><u>y</u></em><em><u>+</u></em><em><u>5</u></em><em><u>y</u></em>
<em><u>3</u></em><em><u>x</u></em><em><u>+</u></em><em><u>6</u></em><em><u>y</u></em>
Answer: [A]: "library card".
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Explanation: One would need a valid, government-issued photo ID card (i.e. that has not expires).
Although SOME library cards include one's picture, library cards do not constitute "valid ID's" because they are not "government-issued" and would, theoretically, be easy to be made fraudulently (e.g. not have security-issued seals and features).
Even "school ID's"; or "college ID cards"; even if "current" (e.g. currently enrolled" with a photo ID) would not be considered "official" and would only be considered "secondary ID".
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Answer:
12) 25π/3 cm² ≈ 26.18 cm²
13) C. 2π m²
Step-by-step explanation:
Area of a sector is:
A = πr² (θ / 360°)
where r is the radius of the circle, and θ is the angle of the sector.
12) The diameter is 20 cm, so the radius is 10 cm. The angle of each sector is 30°. So the area is:
A = π (10 cm)² (30° / 360°)
A = 25π/3 cm²
A ≈ 26.18 cm²
13) To find the area, first find the radius using Pythagorean theorem.
a² + b² = c²
r² + r² = (4 m)²
2r² = 16 m²
r² = 8 m²
So the area is:
A = π (8 m²) (90° / 360°)
A = 2π m²