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3 years ago

What is 42 x 2 give the working please help

Mathematics

2 answers:

Lynna [10]3 years ago

4 0

Answer:

84.

Step-by-step explanation:

x 2

2 x 2 = 4

4 x 2 = 8

= 84

Dmitrij [34]3 years ago

3 0

Answer:

Technically, 42×2=84

Step-by-step explanation:

You could do this by adding 42+42=84

Multiplying 2 times the 2 and the 4, which gives you 84.

If you wanted the factoring then:

2 is a prime number

42 could be like 42

/ \

21 2

/ \

7 3

but I dont really know how factoring would help you multiply. I hope this helps

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A=1/2h (b+c) solve for b

Illusion [34]

A=1/2h(b+c)
times both sides by 2/1
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divide both sides by h
$\frac{2A}{h}$ =b+c
minus c from both sides
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8 0

3 years ago

Which parabola has the graph shown?<br><br> I think the answer is C. however, I'm not 100% sure.

NemiM [27]

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7 0

3 years ago

A rectangular magazine cover is photocopied by using a scale factor of One-third. The length of the photocopy of the magazine co

seraphim [82]

Answer: "reduced by a factor of One-third."

Step-by-step explanation:

Suppose that the original magazine has a length L and a width W.

If it is photocopied using a scale factor of K, then the measures of the photocopy will be:

length = K*L

Width = K*W

In this case, the scale factor is K = 1/3, then the measures of the photocopy will be:

length = (1/3)*L = L/3

Width = (1/3)*W = W/3

For usual notation:

When k > 1, we have an enlargement by a factor k

when 0 < k < 1, we have a reduction by a factor k

in this case, k = 1/3, then:

We have a reduction by a factor of 1/3

The correct option is:

"reduced by a factor of One-third."

7 0

3 years ago

Read 2 more answers

X+2y=8<br>2x-y=1<br>mathe question

Ira Lisetskai [31]

Answer:

x = 2 and y = 3

Step-by-step explanation:

We have

x+2y = 8 -----equation (i)

2x-y = 1 -----equation (ii)

Now,

x+2y = 8

or, x = 8-2y ------equation (iii)

Again,

2x-y = 1

or, 2x = 1+y

or, 2x-1 = y

Putting the value of 'x' from equation (iii)

or, 2(8-2y)-1 = y

or, 16-4y-1 = y

or, 16-1 = y+4y

or, 15 = 5y

or, y = 15/5

or, y = 3

Putting the value of 'y' in equation (iii)

x = 8-2y

or, x = 8-(2×3)

or, x = 8-6

or, x = 2

Therefore, x = 2 and y = 3.

4 0

2 years ago

There was an activity planned outdoors, but it started to rain. They took a vote and 45 people of the 60 people wanted to stay i

Elza [17]

Answer:

15/60×100=25%

Step-by-step explanation:

the number of students wanted to go outside/the whole number of students×100

15/60×100=25%

4 0

3 years ago