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3 years ago

Help=10pts 5,6,7,and 8 plz

Mathematics

2 answers:

Lesechka [4]3 years ago

8 0

Answer:

number 5:4/12

#6: 25/45

#7: 26/44

#8: 52/30

Step-by-step explanation:

Gemiola [76]3 years ago

6 0

Answer:

5) 1/3=x/12

12=3x

3x=12 (divide both sides)

12 divided by 3 = 4

therefore, x = 4

6) 5/9=25/y (cross multiply the numbers)

after cross multiplying you should get: 5y=225

divide both sides to get 45

therefore, y = 45

7) 26/z = 13/22 (cross multiply numbers)

after cross multiplying, you should get: 572=13z (swap the numbers)

after swapping the number, you should get: 13z=572 (divide both sides)

after dividing you should get 44

therefore, z = 44

8) b/30 = 2.6/1.5 (simplify expression)

after simplifying you should get: b/30=26/15 (cross multiply after)

after cross multiplying you should get: 15b = 780 (divide both sides)

after dividing both sides, you should get: 52

therefore, b = 52

Hope this helps:)!

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Producers will make 1000 refrigerators available when the unit price is $280.00. At a unit price of $400, 5000 refrigerators wil

Kobotan [32]

Answer:

For linear equations we use:

p=mx+b ------ (1)

Now we have the following coordinates:

(x1,p1)= (1000,280) and (x2, p2)=(5000,400)

First we need slope (m)

m= $(400-280)/(5000-1000)$

= $120/4000=0.03$

Now we will plug the value of m in the first equation

$280=0.03(1000)+b$

=> $280=30+b$

=> b = 250

Now plug into p=mx+b using only m=0.03 and b=250

$p=0.03x+250$

When the unit price is $440, we can plug in 440 in for p;

$440=0.03x+250$

=> $0.03x=440-250$

=> $0.03x=190$

=> x = 6333 refrigerators

The lowest price at which a refrigerator will be marketed, we can find this by plugging x = 0 in p=mx+b.

$p=0.03(0)+250$

=> p = $250

6 0

3 years ago

How can we best show or describe the change in position of a figure?

snow_lady [41]

HEYA ! ,HERE IS YOUR ANSWER --

We can show or describe the change in position of a figure by graph or chart .

★ hope you like it ★

6 0

3 years ago

Thx the picture I need help with it thx

Anon25 [30]

40x7=280

Your answer is $280

Hope this helped :D
~xo Melis

5 0

3 years ago

Write equation of the line below

vodka [1.7K]

Hi there!

We are given two ordered pairs which are:

(0,0)
(5,4)

If you are curious how do I get these ordered pairs, they come from those two big circles or dots. x and y make relation and can be written as (x,y).

1. Find the slope

Yes, our first step is to find the slope of a graph if you want to find an equation. You may be curious how to find that right? No worries! We have got a special formula for you to find the slope!

$\large \boxed{m = \frac{y_2 - y_1}{x_2 - x_1} }$

Since we have two given points, we can substitute them in the formula.

$\large{m = \frac{4 - 0}{5 - 0} } \\ \large \boxed{m = \frac{4}{5} }$

2. Form an equation.

Since we have finally found, got or evaluated the slope. Next step is to find the y-intercept. Oh! Before we get to form an equation, do you know the slope-intercept form? We will be using that linear equation form since it is commonly used in the topic.

$\large \boxed{y = mx + b}$

Where m = slope and b = y-intercept. We substitute m = 4/5.

$\large{y = \frac{4}{5} x + b}$

Next thing to remember is that when the graph intersects an origin point, b-term or y-intercept would be 0. Therefore b = 0 since the graph intersects (0,0).

$\large \boxed{y = \frac{4}{5} x}$

3. Answer

Therefore the equation of the line is y = 4x/5.

6 0

2 years ago

Can anyone help me out with this?

nadya68 [22]

Answer:

Triangle I think........

7 0

3 years ago

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