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SIZIF [17.4K]
3 years ago
8

The Last Mystery Letter

Mathematics
1 answer:
Ket [755]3 years ago
7 0

So first of all, find d. It is the only letter you can be sure of because all of them are the same. So 3d = 9. Divide by 3 to get d = 3. Now 2C + 3 = 21, because there are 2 C's in the bottom row. Subtract 3 from both sides to get 2C = 18. Divide by 2 to get C = 9. 2C + A = 21, or 18 + A = 21. Subtract 18 from both sides to get A = 3. A + B + C = 14, or 3 + B + 9 = 14. Combine like terms to get 12 + B = 14. Subtract 12 from both sides to get B = 2. So A = 3, B = 2, C = 9, and D = 3.

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In the table adam recorded the miles he travled each day while traveling from Florida to California. Calculate the average rate
blagie [28]

Hi!

<em>To calculate the rate of change between days 4 and 6, we simply take those points, (4, 1503) and (6, 2196) and use the equation in the picture below:</em>

<em />

Now, when we plug it in the equation, it looks like this:

\frac{2196-1503}{6-4} = \frac{693}{2} = 346.5

Therefore, your answer is 346.5 or, rounded, 347.

<em><u>Meaning, your answer is C</u></em>

<em><u></u></em>

Hope this helps and have a great day! :D

5 0
2 years ago
What is the measure of anglec to the nearest whole degree? 70° 77° 80° 85°
Annette [7]

Applying the cosine ratio, the measure of angle C in the given image, to the nearest whole degree, is: 77°.

<h3>What is the Cosine Ratio?</h3>

The cosine ratio is given as, cos ∅ = adjacent side/hypotenuse side of a right triangle.

Using the cosine ratio, we have:

cos C = 2/9

C = cos^(-1)(2/9)

C ≈ 77 degrees.

Learn more about the cosine ratio on:

brainly.com/question/15793827

4 0
2 years ago
Help quick pleaseeee
ehidna [41]

Answer:

x= 3.096

Step-by-step explanation:

divide both sides by 5: 3^(x-1)= 10

then take the log to get log_3 (10) = x-1 = 2.096

x= 3.096

4 0
2 years ago
51 miles on a 3 gallon of gas find the unit rate
Sauron [17]

Answer:

Step-by-step explanation:

(51 miles)/(3 gal) = 19 miles/gal

7 0
3 years ago
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4.07065 in words or written form?
MAVERICK [17]
Four and seven thousand sixty-five hundred thousandths, I believe
3 0
3 years ago
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