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Elanso [62]
3 years ago
9

How do you solve linear equations using substitution

Mathematics
1 answer:
GuDViN [60]3 years ago
4 0
You substitute the y from the second eqaution to the y in the first equation
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a roll of wallpaper is on sale for $10. write and solve an inequality to determine how many rolls of wallpaper you can.buy and s
ss7ja [257]
Let x be the number of rolls of wallpaper that you can buy to decorate your kitchen. Since each roll costs $10, the total cost for x rolls is 10x. This value should be not be more than $50. The inequality that is best described is  
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8 0
3 years ago
Solve this polynomial:
irina [24]

Answer:

-4r²-3s²

Step-by-step explanation:

Remove unnecessary parentheses:

r²+s²-(5r²+4s²)

Connect like terms:

-4r²+s²-4s²

Simplify/ collect like terms:

-4r²-3s²

Solution:

-4r²-3s²

6 0
3 years ago
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The of choice are ways epress 0.4 which is not
Ann [662]

Answer:

NO IT IS 4

Step-by-step explanation:

6 0
3 years ago
Just learn this throughout a quick lesson, can someone help?
suter [353]

Answer:

The Pythagorean theorem is a^2+b^2=c^2 where c is the length of the longest, diagonal side (diagonal means opposite the right angle/small square).

Step-by-step explanation:

If you're looking for a short side (i.e. next to the right angle), square the longest one and subtract the square of the other known.

If you're looking for a long side (i.e. opposite the right angle), square both you know and add them together.

In both cases, take the Square Root with your calculator, or by trial and error, find a number that squares to make your current number.

[1] A square of the number x is x times x.

6 0
3 years ago
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viva [34]

Answer:

6 is the answer

Step-by-step explanation:

Hope I have helped.

8 0
3 years ago
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