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2 years ago

Use the expression 14X + 28Y + 21.. what is the greatest common factor

Mathematics

1 answer:

12345 [234]2 years ago

4 0

Answer:

Step-by-step explanation:

None of these numbers are alike terms so the only number left is 1.

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Tell whether the ordered pair is a solution of the system of equations.

katovenus [111]

Answer:

2x + y = 5

y = 4x – 1

Substitute (2, 1) into system, then:

2x + y = 5 => 2 x 2 + 1 = 5 => 5 = 5 (satisfied)

y = 4x– 1 => 4 x 2 - 1 = 1 => -7 = 1 (not satisfied)

=> Option 3 is correct.

Hope this helps!

8 0

2 years ago

How to subtract a negative fraction from a positive fraction?

ikadub [295]

Let's take an example to illustrate this case:

positive fraction = 2/7

negative fraction = - 3/5

Now we need to subtract - 3/5 from 2/7

Right?

2/7 - (-3/5) = 2/7 + 3/5

here we need to unify the denominators as follows:

the lowest common factor between 7 and 5 is 35
2/7 = 10/35
3/5 = 21/35

Now back to 2/7 + 3/5:

2/7 + 3/5 = 10/35 + 21/35 = (10+21)/35 = 31/35

That's it

Hope that helps you

8 0

3 years ago

What is the sum of 2+5

CaHeK987 [17]

2 + 5 = 7...it’s basic addition but ok...

3 0

3 years ago

Read 2 more answers

Calcite the volume of this cylinder giving your answer to 1 decimal place

Anit [1.1K]

Answer:

11309.7 cm

Step-by-step explanation:

Volume = πr^2h

= π×20^2×9

= 3600π

= 11309.733552923

=11309.7 cm

8 0

2 years ago

Barb is making a banner that is shaped like a trapezoid the height of the banner is 24 inches the top of the banner is it 14 inc

velikii [3]

Answer:

The length of the bottom side of the banner is 17 in.

Step-by-step explanation:

Given,

Area of the Banner = $372\ in^2$

Height of the Banner = 24 in

Top side of the Banner = 14 in

We have to find the length of the bottom side of the banner.

Solution,

Let the length of the bottom side of the banner be 'x'.

Since the banner is in the shape of trapezoid.

So according to the formula of area of trapezoid, which is;

Area of trapezoid = $\frac{1}{2}\times \textrm{sum of parallel sides}\times \textrm{distance between them}$

Here top and bottom sides are parallel and distance between them is equal to the height of the banner.

Now substituting the values, we get;

$\frac{1}{2}\times24\times(x+14)=372\\\\12(x+14)=372\\\\x+14=\frac{372}{12}\\\\x+14=31\\\\x=31-14=17\ in$

Hence The length of the bottom side of the banner is 17 in.

7 0

3 years ago