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Gre4nikov [31]
3 years ago
5

A number, y, is equal to the difference of a larger number and 3. The same number is one-third of the sum of the larger number a

nd 9. Which equations represent the situation? A. x + y = 3 and x minus 3 y = negative 27 B. x + y = 3 and x minus 3 y = negative 9 C. x minus y = 3 and x minus 3 y = negative 27 D. x minus y = 3 and x minus 3 y = negative 9
Mathematics
2 answers:
Shalnov [3]3 years ago
4 0

Answer:

D. x - y = 3 and x - 3 y = - 9

Step-by-step explanation:

The descriptions above describe the equation of choice D, so I pick this answer.

professor190 [17]3 years ago
3 0

Answer:

D

Step-by-step explanation:

just took the test

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An airplane pilot changed his altitude by 100 meters describe what this could mean?
Leni [432]
The plane went 100 meters higher than its original height
4 0
3 years ago
Ill mark u brainliest please help me!
dem82 [27]

Answer:

C

Step-by-step explanation:

Line AC is equal to line DF.

6 0
3 years ago
Read 2 more answers
the sum of two numbers is 45. the greater number is 9 more than the other number. Find each number. use a system of linear equat
SpyIntel [72]

Answer:

18 and 27

Step-by-step explanation:

Let x = first (smaller) number

Let y = second (larger) number

Sum of two numbers is 45:

⇒ x + y = 45

The greater number is 9 more than the other number:

⇒ y = x + 9

Substitute  y = x + 9  into  x + y = 45  and solve for x:

⇒ x + (x + 9) = 45

⇒ 2x + 9 = 45

⇒ 2x = 36

⇒ x = 18

Substitute found value for x into  y = x + 9  and solve for y:

⇒ y = 18 + 9

⇒ y = 27

Therefore, the two numbers are 18 and 27

5 0
2 years ago
Read 2 more answers
Emily has pennies and five dollar bills in her pocket. The number of pennies is eight less than three times the number of five d
Zina [86]

Answer:

3f - 8 = number of pennies

Step-by-step explanation:

3f - 8 = number of pennies

6 0
3 years ago
Read 2 more answers
What’s is the value of n? HELP ASAP PLEASE
earnstyle [38]

Answer:

The answer should be 69°

Step-by-step explanation:

Each line is being cut by a transversal, that means that the degree on the other side of it, added with the given degree will add up to 180°

1. On the right, you need to find the interior angle where 160° is outside so you subtract 180° from 160° to find the angle inside. That gives you 20°

2. On the top left you have 131° so 180°-131°=49°

Next you add the angles you have and then subtract it from 180 to get the interior angle with n° outside.

3. 20°+49°=69°

4. 180°-69°=111°

Then you do the same thing as the beginning which would be n°+111°=180°

5. n°+111°=180°, that means n=69°

Hopefully that clears it up for you :)

7 0
3 years ago
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