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barxatty [35]
2 years ago
11

7th grade math help me plzzzzz

Mathematics
1 answer:
Lady bird [3.3K]2 years ago
5 0

Answer:

94

Step-by-step explanation:

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Solve the system of equations using substitution. Write the solution as an ordered pair.
IrinaK [193]

Answer:

  (-3, 3)

Step-by-step explanation:

Substitute for y:

  x+6 = -2x -3

  3x = -9 . . . . . . . add 2x -6 to both sides

  x = -3 . . . . . . . . divide by 3

  y = (-3) +6 = 3 . . substitute for x in the first equation

The solution is ...

  (x, y) = (-3, 3)

4 0
3 years ago
Working in separately , three carpenters can make three chairs in three days. How many chairs can 7 carpenters working at the sa
tekilochka [14]
210chairs since the ratio is 3/3 which is 1/1 since 7 carpenters make 7 chairs every day for 30 days thats 7 * 30 which is 210
6 0
3 years ago
Evan buys some oranges. He gives 1,2 or 3 oranges to April. He has5 oranges left . Draw pictures and write a number sentence to
stiv31 [10]

Answer:

6, 7 or 8 oranges

Step-by-step explanation:

8 0
3 years ago
provide a counterexample (specific values of a,b, etc. which make the statement false) for each of the following statements. Ass
ivolga24 [154]

Answer:

1. a=3, b = 2, c = 1.

2. a=2, b=3, c=4, d=6.

3. a = 9, b = 3.

Step-by-step explanation:

1.  3 | 21   is a counterexample  because 3 does not divide into  2 or 1.

2. 23 | 46 is a counterexample because 2 does not divide into 3.

3. 9 | 3^2 is a counterexample because 9 does not divide into 3.

8 0
2 years ago
A circle is dovided into 18 equal parts. How many degrees is the angle for each part? How any degrees for 5 parts? Explain.
Travka [436]
A circle is 360 degrees so 1/18 of the circle will be 20 degrees. For 5 parts the total will be 100 degrees (20*5)
3 0
3 years ago
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