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juin [17]
3 years ago
11

Which graph represents 3x+5y=15

Mathematics
1 answer:
Fynjy0 [20]3 years ago
8 0
Which graph? Please explain in the comments
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A gerbil cage,priced at $18, is discounted 20% for one week, and then this price is marked up 20%. is the price back to 20% expl
stiks02 [169]
No, it isn't!

first, the discount is 20 percent of 18 dollars, that is 18/5=3.6

this means that during the first week the prize is 18-3.6=14.4

now, the prize is marked up 20 % of 14.4! this is 2.88

so the prize later will be 14.4+2.88, that is 17.28, not 18

what is relevant here is what a number is a percent OF
6 0
3 years ago
Solve by substitution<br> 3x-4y=-4<br> y=2x-4
dybincka [34]

Answer:

x=4 and y=4

Step-by-step explanation:

From first function we have:

3x - 4y =  - 4 \\ 4y = 3x  + 4

And from the second one:

y = 2x - 4 \\ 4y = 8x - 16

Substitute them:

4y = 3x + 4 \\ 4y = 8x - 16 \\  \\ 0 =  - 5x + 20 \\ x = 4 \\ y = 4

7 0
3 years ago
3+(8+7) = (7+8)+3
Elis [28]
Associative Propety

(a + b) + c = a + (b + c)
6 0
3 years ago
Ethan throws a ball into the air from a cliff that is 152.4 m high with an initial velocity of 4 m/s. How long does it take for
Dmitry_Shevchenko [17]
38.1 seconds I believe simply divide 4m/s into 152.4 m and you will have 38.1 seconds
8 0
3 years ago
Read 2 more answers
2. Find the value of x.
anyanavicka [17]
58-180=122 x=122 hope this helps have a nice nite!
5 0
3 years ago
Read 2 more answers
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