3 years ago

Evaluate the expression if x=9 and y=2

Mathematics

2 answers:

sineoko [7]3 years ago

6 0

47 is the answer cause it’s the closest 5x+y (x=9)(y=2.5)
5(9)+2.5
45+2.5
= 47.5
Pls mark brainlest!

fgiga [73]3 years ago

4 0

Answer:

Step-by-step explanation:

x=9 y=2 5x+y= so you need to multiply x (9) by 5 9x5= 45 45+2=47

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Find the value of x, for which : (81) -4 ÷ (729) 2-x = 9 /4x

tamaranim1 [39]

Answer:

$\huge{x = \frac{236164}{9477} = 24 \frac{8716}{9477}}$

Step-by-step explanation:

$(81) - 4 \div (729)2 - x = \frac{9}{4} x$

$81 - \frac{4}{729} \times 2 - x = \frac{9}{4} x$

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$\frac{59041}{729} - x = \frac{9}{4} x$

$236164 - 2916x = 6561x$

$- 2916x - 6561x = - 236164$

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$\boxed{\green{x = \frac{236164}{9477} = 24 \frac{8716}{9477}}}$

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