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valentina_108 [34]
2 years ago
10

HELP!can somebody give me the answer then explain how they did and if you cheated tell me how you cheated lol

Mathematics
1 answer:
amm18122 years ago
7 0
Area is lengthxwidth
So just divide area by the given width
Gives you 99 m

Perimeter for a rectangle is 2l+2w
If one length is 94, 94x2 = 188
Subtract that from the 354 = 166
Divide by two because it’s 2w
83 cm
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Solve system by elimination <br> -5x-10y=-20<br> 10x+10y=0
bekas [8.4K]

Answer:

(-4,4)

Step-by-step explanation:

-5x-10y=-20

10x+10y=0

divide both sides by 2

-5x-10y=-20

5x+5y=0

that makes

-5y=-20

divide both sides by -5

y=4

now substitute 4 for y

10x+10 x 4=0

multiply

10x+40=0

subtract

10x=-40

divide

x=-4

7 0
3 years ago
Read 2 more answers
how for is Blaine's house if you must drive 6.5 hours through the woods at an average of 45mph to get there?
omeli [17]
Six and a half hours at a speed of 45 mph. 45 mph is forty five miles per hour. since there are six full hours, multiply six (time) by speed (45) to get the distance within the six full hours, which is 270 miles. you also have an additional half hour at a 45 mph speed, so rather than going 45 miles in one hour, you for half an hour, meaning you go 22.5 miles. add these two together (270 + 22.5) to get 292.5 miles. a faster way to get to this would be to multiply 6.5 * 45. hole this helps!
3 0
3 years ago
What is the standard form of the equation y=-5/2x-3 ?
butalik [34]

The standard form of an equation is the form where that equation has no fractions and is written in the form ax + by = c.


To get rid of the fractions in y = -5/2 x - 3, we need to multiply both sides by 2. That makes the equation become:


2y = -5x - 6


Now we need to get it into the form ax + by = c. We can do this by adding 5x to each side.


5x + 2y = -6 is our answer

6 0
3 years ago
In 4 years, sravani will be 3 times as old as Makayla is currently. three years ago, sravani was 4 times as old as Makayla was t
77julia77 [94]
X - Sravani
y - Makayala

x+4=3y\\&#10;x-3=4(y-3)\\\\&#10;x=3y-4\\&#10;x=4y-12+3\\\\&#10;x=3y-4\\&#10;x=4y-9\\\\&#10;3y-4=4y-9\\&#10;4y-3y=-4+9\\&#10;y=5\\\\&#10;x=3\cdot5-4\\&#10;x=15-4\\&#10;x=11

Sravani - 11
Makayla - 5
3 0
3 years ago
Need help wasn't there for a lesson
77julia77 [94]
These are linear equations, so there is x and y. On number one the first thing they plotted was (3,8) so in a function table the 3 would be on the left side and the 8 would be on the right side. I’ll leave you with the rule of the first one, if the rule is times 2 plus to the how would you put it in a function table.

The first thing that you would put into the function table on the first question would be as I said earlier 3 and then 8. The rule is the rate. Using a function table will be very helpful (That’s why I keep mentioning one). Let me know if this helps.
6 0
3 years ago
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