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nekit [7.7K]
3 years ago
14

Please help this was due yesterday and in less than an hour it won't be worth any points

Mathematics
2 answers:
allsm [11]3 years ago
8 0

Answer:

The GCF is 7.

Factors of 21 - 1, 3, 7, 21

Factors of 56- 1, 2, 4, 7, 8, 14, 28, and 56

Factors of 7- 7

Step-by-step explanation:

azamat3 years ago
3 0
GCF - 7

Factors of 21- 1,3,7,21

Factors of 56- 1,2,4,7,8,14,28,56
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ALOT OF POINTS IF YOU HELP ME PLEASE EXPLAIN ​
Svetllana [295]

Answer:

Helena gave the answer as (7y²z + 6yz²- 5 - 3yz² + 2) which is equivalent to (7y²z + 3yz² - 3).

Step-by-step explanation:

Misha's group was asked to write an expression equivalent to  

7y²z + 3yz² - 3

When Mr. Chen checked their answers, he found only one to be correct.

And she was Helena.

Helena gave the answer as (7y²z + 6yz²- 5 - 3yz² + 2) which is equivalent to (7y²z + 3yz² - 3).  

Because, (7y²z + 6yz²- 5 - 3yz² + 2)

= 7y²z + (6yz² - 3yz²) - (5 - 2)  

= 7y²z + 3yz² - 3 (Answer)

4 0
3 years ago
Solve this system of linear equations. Separate
AleksAgata [21]
  • 7x=-63-11y-(1)
  • 8x=93+11y--(2)

Adding both

  • 15x=30
  • x=2

Putting in second one

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  • 11y=16-93
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5 0
2 years ago
Read 2 more answers
A car uses a litre of petrol to travel 4km. How many litres will it use to travel 32 kilometres.
lesya [120]

Given that,

A car uses a litre of petrol to travel 4 km.

To find,

How many litres will it use to travel 32 kilometres.

Solution,

We have,

1 litre = 4 km

or

1 km = (1/4) litre

Let it will use x litres to travel 32 km.

32 km = (32/4) litres

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3 0
3 years ago
The ancient Greeks could bisect an angle using only a compass and straightedge.A. TrueB. False
Gala2k [10]

Answer: True.

The ancient Greeks could bisect an angle using only a compass and straightedge.

Step-by-step explanation:

The ancient Greek mathematician <em>Euclid</em> who is known as inventor of geometry.

The Greeks could not do arithmetic. They had only whole numbers. They do not have zero and negative numbers.

Thus, Euclid and the another Greeks had the problem of finding the position of an angle bisector.

This lead to the constructions using compass and straightedge. Therefore, the straightedge has no markings. It is definitely not a graduated-rule.

As a substitute for using arithmetic, Euclid and the Greeks learnt to solve the problems graphically by drawing shapes .

5 0
3 years ago
Read 2 more answers
Kate has 48 softballs. She wants to divide them evenly among b softball bags. Which expression represents how many softballs she
Makovka662 [10]

Answer:

A

Step-by-step explanation:

48 softballs

Divided among b bags

Divide 48 by b

48 ÷ b

Division expressions can also be written as fractions

Rewrite

48/b

The correct answer is A, 48/b

Hope this helps :)

8 0
3 years ago
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