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jonny [76]
4 years ago
12

A line perpendicular to 3x + 5y = 5

Mathematics
1 answer:
serious [3.7K]4 years ago
3 0

Answer:

x = 0

y = 1

Step-by-step explanation:

3 • 0 = 0

5 • 1 = 5

so, 0 + 5 = 5

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Could someone help? please the deadline is in 20 min!!!
Zepler [3.9K]

Answer:

7.$95 8. $112.50

Step-by-step explanation:

7.

50 divided by 100 is 0.5, then times by 90 is 45.

45 plus 50 is 95.

8.

$150/4=$37.50

$150-$37.50=$112.50

5 0
3 years ago
Out of a 49 inch piece of ribbon, how many 3.5 inch pieces can Sally cut
Zolol [24]

14. You divide the length of ribbon by the size of the pieces wanted so you get

49/3.5 = 14

8 0
4 years ago
The area of a rectangular wall of a barn is 252 square feet. Its length is 10 feet longer than twice its width. Find the length
valentinak56 [21]

Answer: Length = 28 feet and width = 9 feet

Step-by-step explanation:

Let x = width of the wall.

Then, Length of the wall =  10+2x

Since , Area of rectangle = length x width

Then, as per given,

252= (10+2x)x\\\\\Rightarrow\ 252=10x+2x^2\\\\\Rightarrow\ 2x^2+10x-252=0\\\\\Rightarrow\ x^2+5x-126=0\\\\\Rightarrow\ x^2+14x-9x-126=0\\\\\Rightarrow\ (x+14)-9(x+14)=0\\\\\Rightarrow\ (x+14)(x-9)=0\\\\\Rightarrow\ x=-14 \ or \ x= 9

Since width cannot be negative , so x = 9

So width = 9 feet and length = 10+2(9)=10+18 = 28 feet

Hence, length is 28 feet and width is 9 feet of the wall of the barn.

7 0
4 years ago
How can I find the volume of this prism? Helpp
Alex

Answer:

152.971

Step-by-step explanation:

i think thats the answer but sorry if its not.

5 0
3 years ago
Sarah has 4 cousins. Melanie has 7 times as many cousins as Sarah. How many Cousins dose Melanie have?​
Lina20 [59]

Answer:

Melanie has 28 cousins.

Step-by-step explanation:

4 x 7 = 28

I hope this helped and if it did I would appreciate it if you marked me Brainliest. Thank you and have a nice day!

5 0
3 years ago
Read 2 more answers
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