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inna [77]
3 years ago
11

If 5x-3y=12 and 4x-5y=17 what is the value of y?

Mathematics
1 answer:
il63 [147K]3 years ago
3 0

Answer:

8y

Step-by-step explanation:


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A square has a side of 8cm. The area of the square increases by 50%. Work out the percentage increase in the length of the side.
sertanlavr [38]
Because the side has to be increased by 50% 
you find half of 8, which is 4 and you add 8+4 because you add the increased amount
8+4=12
you then just find the area.... so 12x12= 144
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3 years ago
Help me fast!!!!!!!I need to finish this by next period
klio [65]

Answer:

-2/3

Step-by-step explanation:

Rise over run!  The slope rises twice and goes over 3 times.  The slope is negative so put a negative sign behind it.

3 0
2 years ago
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I’m not sure about this please help
castortr0y [4]

Answer:

3

Step-by-step explanation:

Evaluate x/4 + 6 (x - 12) where x = 12:

x/4 + 6 (x - 12) = 12/4 + 6 (12 - 12)

Hint: | Reduce 12/4 to lowest terms. Start by finding the GCD of 12 and 4.

The gcd of 12 and 4 is 4, so 12/4 = (4×3)/(4×1) = 4/4×3 = 3:

3 + 6 (12 - 12)

Hint: | Look for the difference of two identical terms.

12 - 12 = 0:

6×0 + 3

Hint: | Any number times zero is zero.

0×6 = 0:

0 + 3

Hint: | Simplify the expression.

Write 3 + 0 as 3:

Answer: 3

3 0
3 years ago
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Please help with this
Maksim231197 [3]

Answer:

Choice A

Step-by-step explanation:

  • SSS is not applicable as only 2 sides are congruent
  • HL is lot applicable as triangles are not right angled (∠A and ∠E >90)
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the perimeter of a rectangle poil is 72 feet. the length of pool is 4 ft. more than three times the width. what is the length an
Scilla [17]
Width = 8 ft
Length = 28 ft<span />
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3 years ago
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