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3 years ago

1....1/4 y + 1 1/2 + 2-1 3/4 y -12 2....5=1/5x-3 3....1/2 h + 1 from 3/4 h +4

2 answers:

4 0

1: =−3.225y+−92

2: x=40

3: =14fhm3or+12h+4

Rainbow [258]3 years ago

4 0

1) 1/4y + 1 1/2 + 2 - 1 3/4y - 12
= 1/4y + 3/2 + 2 - 7/4y - 12
= 1/4y - 7/4y + 3/2 - 10
= 6y / 4 - 17/20

In short, Your Answer would be: 3y/2 - 17/20

2) 5 = x/5 - 3
x/5 = 5 + 3
x = 8 * 5
x = 40

In short, Your Answer would be 40

3) [ If you are asking about subtraction ]
3h/4 + 4 - (h/2 + 1 )
3h/4 - h/2 + 4 - 1
3h - 2h /4 + 3
= h/4 + 3

In short, Your Answer would be: 1/4 h + 3

Hope this helps!

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How many solutions does this linear system have?

ziro4ka [17]

Answer: C is correct, No solution

Step-by-step explanation:

Let’s simplify the second equation,

8x-4y=-20

We can divide the whole equation by 4...

8x/4-4y/4=-20/4

Which becomes....

2x-y=-5

Now let’s move things around to see if it’s the same equation as the one on top...

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Now we need to solve the systems...

y=2x-5

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3 years ago

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3 years ago

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3 years ago

Rafael wanted to order half a medium pizza at a restaurant. The waiter told him that a medium pizza could be cut into 6 or 8 sli

Nady [450]

Answer:

The wrong in Rafael reason is that 3/6 = 4/8 = 1/2 pizza

Step-by-step explanation:

* Lets explain how to solve the problem

- When we have a quantity we can divided it to many equivalent

fractions

- Equivalent fractions means fractions equal each other

- We can find the equivalent fraction by multiply or divide the two

terms of the fraction by the same number

- Ex: We can divide a circle into two equal parts each part is 1/2 the

circle, if we multiply each term of the fraction by 2 (up and down)

then we will have 2/4 which is equivalent to 1/2 the circle

- Then we can divide the circle by 2 parts with many equivalent fractions

1/2 = 2/4 = 3/6 = ..................

* Lets solve the problem

- Rafael wanted to order half a medium pizza

- The medium pizza could be cut into 6 or 8 slices

∵ The half of 6 is 3/6

∵ The half of 8 is 4/8

- Lets simplify the two fraction

∵ 3/6 = 1/2 by dividing up and down by 3

∵ 4/8 = 1/2 by dividing up and down by 4

∴ There is no difference between the two orders, both of them

equal half the pizza

∴ The wrong in Rafael reason is that 3/6 = 4/8 = 1/2 pizza

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3 years ago

Which graph models the solution set of 50x + 150y>1500?

hodyreva [135]

Answer:

see attached diagram

Step-by-step explanation:

First, draw the dashed line 50x+150y=1500 (dashed because the inequality is without notion "or equal to"). You can do it finding x and y intercepts.

When x=0, then 150y=1500, y=10.

When y=0, then 50x=1500, x=30.

Connect points (0,10) and (30,0) to get needed dashed line.

Then determine which region (semiplane) you have to choose. Note that origin's coordinates (0,0) do not satisfy the inequality 50x + 150y>1500, because

$50\cdot 0+150\cdot 0=0$

This means that origin lies outside the needed region, so you have to choose the semiplane that do not contain origin (see attached diagram).

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3 years ago

Read 2 more answers