3 years ago

Which expression is 8y - 5x + 13y equivalent to after being simplified?

1 answer:

7 0

You combine like terms like 8y+13y which gives you 21y and don't forget the -5x so your simplified equation would end up being A. 21 - 5x

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The length of a rectangle is 2 cm less than twice the width. The area of the rectangle is 112 cm2. Find the length and width of

ELEN [110]

Let breadth be x

Length=2x-2

We know

$\boxed{\sf Area=Length\times Breadth}$

$\\ \sf\longmapsto 112=x(2x-2)$

$\\ \sf\longmapsto 2x^2-2x-112=0$

$\\ \sf\longmapsto x=-7\:or\:x=8$

Ignore negative value

Now

$\\ \sf\longmapsto Length=2x-2=2(8)-2=16-2=14$

$\\ \sf\longmapsto Breadth=8$

3 0

3 years ago

If the ratio of green to yellow marbles is 2:3, what percent of the marbles are yellow?

Keith_Richards [23]

Answer:

60 yellow marbles

4 0

3 years ago

More help, im still confused

nevsk [136]

Answer:

a) $\frac{1}{3}$

b) $\frac{4}{5}$

Step-by-step explanation:

a) the exponent is 2, therefore the value of $\sqrt[2]{9}$ would go in the place of the base.

b) the exponent is 2, therefore the value of $\sqrt[2]{\frac{16}{25} }$ would go in the place of the base => $\frac{\sqrt{16}}{\sqrt{25}}$ = $\frac{4}{5}$

3 0

3 years ago

Read 2 more answers

Please help with this math problem

dlinn [17]

I think it’s a I’m not really sure but I think

7 0

3 years ago

Directions: Given the point and slope, write the equation of the line.<br> (4, 2); slope = 36

olga nikolaevna [1]

Answer:

y - 2 = 36(x - 4)

Step-by-step explanation:

The equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

Here m = 36 and (a, b ) = (4, 2 ) , then

y - 2 = 36(x - 4) ← equation of line

5 0

3 years ago