All categories

4 years ago

If the product of 1/2 and 2/5 is subtracted from the sum of 1/2 and 2/5 what is the difference

Mathematics

1 answer:

kozerog [31]4 years ago

8 0

Answer:

7/10

Step-by-step explanation:

Lets set up this word problem as an equation to make it easier to solve.

1/2+2/5 - 1/2 x 2/5

Now lets solve using PEMDAS:

1/2+2/5 - 1/2 x 2/5 1/2 x 2/5 = 1/5

1/2 + 2/5 - 1/5 1/2 + 2/5 = 9/10

9/10 - 1/5 = 7/10

You might be interested in

What is the greatest whole number that rounds to 67,400?What is the least whole number?

RSB [31]

The greatest whole number that rounds to 7,400 would be 7,399. This is because there is no number that is larger than 7,399 that would round up to 7,400, since 7,400 is the next number.

The least whole number that rounds to 7,400 would be 7,401. This is because there is no number that is less than 7,401 that would round up to 7,400, since 7,400 is the next number.

3 0

3 years ago

In supply (and demand) problems, y is the number of items the supplier will produce (or the public will buy) if the price of the

SSSSS [86.1K]

Answer:

A) (17 ; 550)

B) $17/item

C) 550

Step-by-step explanation:

First we must calculate the intersection point of the two lines. Since in that point y has the same value in both equations, we can obtain x by equalling the two equations and then using that value for obtaining y:

$5x+465=-6x+652\\5x+6x=652-465\\11x=187\\x=\frac{187}{11}\\x=17$

So the value of x in the intersection point is 17. We now use this value with either one of the equations to obtain y. Let's use the supply equation:

$y=5*17+465\\y=550$

So the intersection point is (17 ; 550)

Supply and demand are in equilibrium when the amount of items on supply are the same as the ones on demand. That is the point were the two lines intersect, which means the selling price is the x coordinate and the amount of items is the y coordinate, so that is a selling price of $17/item with a number of items of 550.

3 0

3 years ago

A rectangular parking lot has an area of 2/3 of a square kilometer. The width is 1/2 of a kilometer. What is the length, in kilo

jeka57 [31]

Area = length x width
replace the known information into the equation:

area = 2/3
width = 1/2

so now the formula looks like:

2/3 = 1/2 x L

to solve for L we divide both sides by 1/2

L = 2/3 / 1/2 which = 2/3 * 2/1 = 4/3 = 1 and 1/3 km

6 0

3 years ago

Compute: 5 ∙ (2 + 3i)

dimulka [17.4K]

Answer:

It will be equal to 40

Step-by-step explanation:

We have to compute $5\times (2+3!)$

Let first find 3 !

For this we have to use factorial concept

So 3! will be equal to 3! = 3×2×1 = 6

Now According to 6+2 = 8

And now after solving bracket we have to multiply with 5

So 5×8 = 40

So after computation $5\times (2+3!)=40$

So the final answer will be 40

4 0

4 years ago

One number is five less than a second number. Three times the first is 14 more than 4 times the second. Find the numbers.

Evgen [1.6K]

Answer:

Second number = -29

First number = -34

Step-by-step explanation:

Second number = x

First number = x - 5

3*(x-5) = 4x + 14

3x - 3*5 = 4x + 14

3x - 15 = 4x + 14

-15 = 4x +14 - 3x

-15 = x + 14

-14 - 15 = x

x = -29

Second number = -29

First number = -29 - 5 = -34

8 0

2 years ago