3 years ago

How many 4 sided figures are in this diagram?

Mathematics

2 answers:

daser333 [38]3 years ago

8 0

Answer:

what diagram homie?

Step-by-step explanation:

ser-zykov [4K]3 years ago

4 0

Answer:

Step-by-step explanation:

theres nothing there

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X-y=4 and 1/2x+1/2y=18

cluponka [151]

value of x = 20 and value of y=16

Solution set=(20,16)

Step-by-step explanation:

We need to solve system of equations:

$x-y=4\\\frac{1}{2}x+ \frac{1}{2}y=18$

Let:

$x-y=4\,\,\,eq(1)\\\frac{1}{2}x+ \frac{1}{2}y=18\,\,\,eq(2)$

Simplifying equation 2:

$\frac{1}{2}x+ \frac{1}{2}y=18$

Taking LCM on left side:

$\frac{x+y}{2}=18$

$x+y=18*2$

$x+y=36\,\,\,eq(3)$

Adding eq(1) and eq(3)

$x-y=4\\x+y=36\\-----\\2x=40\\x=40/2\\x=20$

Putting value of x in eq(1) and finding y:

$x-y=4\\20-y=4\\-y=4-20\\-y=-16\\y=16$

So, value of x = 20 and value of y=16

Solution set=(20,16)

Keywords: System of equations

Learn more about system of equations at:

#learnwithBrainly

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sergei caught 4 striped fish. each one weighed the same number of pounds. then he caught another fish that weighed 8 pounds. whi

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Since he also caught another fish that would make the total of fish 5.

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