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3 years ago

What is 2/3-1/2 step by step

1 answer:

7 0

2 / 3 - 1 / 2 =

find the LCD ( 3 * 2 ) = 6

2 .2 / 6 - 3 / 6 =

2.2 - 3 / 6 =

4 - 3 / 6 =

1 / 6

hope this helps!

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One canned juice drink is 15% orange juice; another is 10% orange juice. How many liters of each should be mixed together in

Vaselesa [24]

Answer:

3 liters of 15% and 2 liters of 10%

Step-by-step explanation:

You can set up a table that says the number of liters multiplied by the percent juice equals total percent of juice in L liters:

L * % juice = %L

That is the main set up for the table. We will put in values for the percent juice right away, because they were given to us. Remember that percentages need to be expressed as decimals in order to use them in equations.

L * % juice = %L

15% .15

10% .10

___________________________________

13% .13

Easy enough so far. We know that the 15% juice canned juice contains 15% juice. No secrets there at all. We also made a row for the mixture that needs to be 13% juice. Next we know that the total amount of the mixture has to be 5 liters. If we mix one juice with another and the total has to be 5 liters, then we have an unknown amount of one juice, and 5 - that unknown amount of the other juice. Filling in we have:

L * % juice = %L

15% x .15

10% 5 - x .10

______________________________

13% 5 .13

Our equation tells us that we have to multiply the L times the % to fill in that last column:

L * % juice = %L

15% x * .15 = .15x

10% 5-x * .10 = .10(5 - x)

__________________________________

13% 5 * .13 = .65

We are told from the problem we are adding the 2 juices to get the mixture, so we will add the rows in the last column and set it equal to .65:

.15x + .10(5 - x) = .65

Let's multiply everything by 100 to get rid of all those decimals:

15x + 10(5 - x) = 65

Distributing and combining like terms:

15x + 50 - 10x = 65 and

5x = 15

x = 3

That means that we need 3 liters of the canned juice that is 15% juice.

5 - 3 = 2...and 2 liters of the canned juice that is 10% juice to get the correct number of liters of 13% juice.

6 0

3 years ago

Please help 3/4 x [ 12 x 4 + (- 16) ] + (-20) A.16 B.-44 C.44 D.4

frez [133]

The answer is d i honestly just typed it into the computer

5 0

3 years ago

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What graffiti tag sounds better? Relm or Sore

aleksandr82 [10.1K]

Answer:

Relm tbh

Step-by-step explanation:

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2 years ago

Find the solution to the syster y = 2x = 5 y = X - 2

lana66690 [7]

Answer:

Both of these equations are in slope-intercept form. The slope-intercept form of a linear equation is: y=mx+b

Where m is the y-intercept value.

y=-2x+5

y=-2x+20

The slope of the two equations are: m1=−2 and m2=−2

Step-by-step explanation:

Because the have the same slope it means the lines represented by these two equations are either parallel or are the same line.

The y-intercepts for the two lines are:b1 = 5 and b1=20

3 0

3 years ago

Four points are placed on a circle. How many segments will it take to connect each point to every other point?

alexandr1967 [171]

Answer:

6 segments are required to connect each point to every other point.

Step-by-step explanation:

If four points are placed on a circle.Then as we know the segment is a line that join two points.

Now as we are given four points on the circle.

so we will firstly start with the first point; the first point requires 3 segments to connect to the remaining three points.
Next second point will just require 2 segments to connect to the two points as it is already connected to the first point.
similarly third point requires just one segment to connect to the last point as it is already connected to first and second point as done above.
and hence by the above three steps the fourth point is connected to all the points.

Hence, 6 segments are required to connect each point to every other point.

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3 years ago

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