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3 years ago

What is the value of the expression 4x+y2y−x when x = 2 and y = 4?

Mathematics

2 answers:

My name is Ann [436]3 years ago

6 0

The answer should be the first one, 2. Do you need and explanation?
4x+y/2y-x

Start by replacing all of the variables.
4(2)+4/2(4)-2

Now work multiply.
8+4/8-2

Now add.
12/6

That is your fraction. But you must simplify it.

Its simplifies to 2.

galben [10]3 years ago

4 0

(4(2)+4)/(2(4)-2)
=(8+4)/(8-2)
12/6
=2

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The length of rectangle ABCD is 4 in. The length of similar rectangle DEFG is 6 in. How many times greater than the area of ABCD

Fiesta28 [93]

The length of the DEFG rectangle
is 6/4 of the length of the ABCD rectangle.

6/4=3/2 = 1,5

How many times greater than the surface of ABCD is the DEFG area?
1,5 times

7 0

4 years ago

Employees at The Shoe Shack get a 25% discount when they buy a pair of shoes at the store.

yaroslaw [1]

Answer: Theo bought a pair of shoe for 36$

Step-by-step explanation:

25% = 0.25

48.00 * 0.25 = 12.00

48.00 - 12.00 = 36.00

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3 years ago

Chloe puts 4 soaps and two bottles of lotion in each gift basket. She has 127 soaps and 85 bottles of lotion. How many gift bask

podryga [215]

127/4 = 31.75 = 31
85/2 = 42.5 = 43

She can only make 31 full gift baskets with the amount of soap she has.

Therefore, Chloe can make 31 gift baskets.

6 0

4 years ago

Help me please please

Elina [12.6K]

Answer: 7

Step-by-step explanation:

m∠ABC = 40°. Since BD is an angle bisector (divides the angle into two congruent angles), then m∠ABD = 20° and m∠CBD = 20°

ABD = 20 and ABD = 3x - 1

⇒ 20 = 3x - 1

⇒ 21 = 3x

⇒ 7 = x

Check:

CBD = 20 and CBD = 34 - 2x

⇒ 20 = 34 - 2x

⇒ -14 = -2x

⇒ 7 = x $\checkmark$

8 0

3 years ago

Write in standard form the equation of a line with a slope of -3/5 and a y intercept of -3

Vlada [557]

Answer:

5y+3x=-9

Step-by-step explanation:

Let us start by the general form of the standard equation, Ax+By=C. One way we can solve this problem is by finding the slope-intercept form of this equation, y=mx+b, and converting it into the standard equation. In the slope-intercept form, m represents the slope, b represents the y intercept.

From this problem, we are given both the slope and the y intercept. We know have the equation:

$y=-\frac{3}{5}x -3$

Great! Now let us rearrange the terms so that the y and x terms are on one side of the equation.

$y+\frac{3}{5} x=-3$

This seems right, but a standard equation must have coefficient values that are real numbers. So, A and B must be real numbers. We can do this by multiplying the entire equation by 5 and ridding the denominator of the A term.

$5y+3x=-9$

I hope this helps! Please let me know if you have any questions :)

7 0

3 years ago