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Pavel [41]
3 years ago
14

Two numbers have a sum of 30. Half of their difference is 7. Find the numbers.

Mathematics
1 answer:
sveticcg [70]3 years ago
5 0

Answer:

the correct answers are 22 and 8

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<img src="https://tex.z-dn.net/?f=R%20%3D%20%5Csqrt%7B%20%5Cfrac%7Bax%20-%20P%7D%7BQ%20%2B%20bx%7D%20%7D%20" id="TexFormula1" ti
Phantasy [73]

Step-by-step explanation:

r = \sqrt{ \frac{ax - p}{q + bx} } \\  {r}^{2}  =  \frac{ax - p}{q + bx}

r² (q + bx) = ax - p

qr² + bxr² = ax - p

qr² + p = ax - bxr²

qr² + p = x (a - br²)

x =  \frac{q {r}^{2}  + p}{a - b {r}^{2} }

7 0
4 years ago
Read 2 more answers
The measures of two angles of a triangle are 49° and 75°. Find the measure of the third angle in degrees.
Alexeev081 [22]
Answer: 56 degrees


Step by step:
The three angles in a triangle add up to 180 degrees.
49 + 75 + the third angle = 180
Let’s simplify.
180 - 49 - 75 = the third angle
So, by subtracting, we know that the third angle is 56 degrees!


Hope this helps! Please tell me if I did anything wrong, thank you so much and have a good day!
8 0
3 years ago
The temperature was -3*C on Friday and dropped overnight by 9*C. What was the temperature on Saturday morning
Anastasy [175]
Well it starts at -3 and dropped (subtract) 9 degrees:
-3 -9 = -12 degrees Saturday morning!
3 0
3 years ago
837 plus equals 2000 in math
ryzh [129]
2000
+837
2837

837 plus 2000 is equal to 2837
4 0
3 years ago
From the observation deck of a skyscraper, Jack measures a 67 angle of depression to a ship in the harbor below. If the observat
LuckyWell [14K]

Answer:

Step-by-step explanation:

From the observation deck of a skyscraper; Madison measures a 67 angle of depression to a ship in the harbor below. Ifthe observation deck is 1143 feet high; what is the horizontal distance from the base of the skyscraper out to the ship? Round your answer to the nearest tenth of a foot if necessary

4 0
2 years ago
Read 2 more answers
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