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crimeas [40]
3 years ago
8

Solve Ax − By = C for x.

Mathematics
2 answers:
nikitadnepr [17]3 years ago
7 0

Answer: X = C+BY / A

Step-by-step explanation:

AX - BY = C

Add BY to bothside

AX - BY + BY = C + BY

AX = C + BY

Divide bothside by A

AX /A = C+BY / A

X = C + BY / A

sukhopar [10]3 years ago
3 0

Answer:

Step-by-step explanation:

Ax − By = C

add BY :  Ax − By+BY = C +BY

Ax =  C +BY

1) case : A = 0 :  0x = C +BY

*) C +BY = 0     all reals x are solution

**)  C +BY≠ 0   no solutions reals

2) case : A ≠ 0 single solution :  x = (C +BY)/A

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21. You are making a rectangular poster to advertise a school fundraiser. You
liubo4ka [24]

The simplified expression for perimeter is 6w, and for area is 2w². 3 meters of a width will allow the most area while not exceeding a perimeter of 20 meters.

Step-by-step explanation:

Let w represent the width of the poster then,

The length of the poster is twice as long as its width, to mean the length is 2w

Perimeter is the distance around the figure. Your figure is a rectangle with sides width, w and length 2w;

Perimeter formula is = 2(l+w) where l is length and w is with

P=2(2w+w) = 2(3w) = 6w meters

Area is given by the product of length and width of the figure

Area=l*w

A=2w*w= 2w²

The table will be;

<u>Width in (m)       Perimeter=6w in (m)           Area (2w²) in m²</u>

3                          6*3= 18                                   2*3²=2*9=18

4                          6*4=24                                  2*4²=2*16=32

Width 3 allows for the most area while not exceeding a perimeter of 20 meters.

Learn More

Area of a rectangle figure : brainly.com/question/9624810

Keywords : rectangular poster, perimeter, area, expression

#LearnwithBrainly

3 0
3 years ago
Trey has completed 36 deliveries so far this week. He needs to make 80 deliveries for the week. What percentage of deliveries ha
anygoal [31]

We must build the proportion

deliveries made : deliveries due = x : 100

in fact, we must express the fraction of work done as a fraction with denominator 100.

So, we have

\dfrac{36}{80}=\dfrac{x}{100}\iff x=\dfrac{3600}{80}=45

Trey has completed 45% of his work so far.

3 0
3 years ago
katia makes crafts using glass jars She can buy packages of 12 jars for $9 how many jars can kitia buy with $45
ale4655 [162]

Hello!

If Katia can buy packages of jars for $9, we can determine how many packages she can purchase with $45 by using the formula:

45/9 = 5

We divide the total number of money that she has by the amount of money one package of jars costs. Now, the question also asks how many jars she can buy, not just how many packages.

We know that she can buy 5 packages, and that there are 12 jars in each package. To find the total number of jars she can buy, we will multiply 5 by 12.

5 x 12 = 60

Katia can buy 60 jars with $45.

I hope this helps you! Have a lovely day!

- Mal

8 0
4 years ago
What is the proportional numbers of 26/13
Inga [223]

Answer:

eboi

Step-by-step explanation:

8 0
3 years ago
Yes I’m posting every single question :)
Rudiy27

Answer:

first option

Step-by-step explanation:

i just looked with my eyes

6 0
4 years ago
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