2.5y+3x=27 5x-2.5y=5

Mathematics

2 answers:

Elden [556K]3 years ago

8 0

X would equal 4 & y would equal 6

zhenek [66]3 years ago

3 0

Answer:

x=4

y=6

Step-by-step explanation:

$2.5y + 3x = 27 \\ + (5x - 2.5y = 5) \\ \\ 8x = 32 \\ x = 4 \\ \\ 2.5y + 3x = 27 \\ 2.5y + 3(4) = 27 \\ 2.5y + 12 = 27 \\ 2.5y = 15 \\ y = 6$

You might be interested in

PLEASE HELP!!! I PUT 50 POINTS

Eduardwww [97]

Answer:

x=7

Step-by-step explanation:

7 times 3 =21 and 21 times 1 =21 cross multiply or butterfly method

4 0

3 years ago

Read 2 more answers

Simplify x^2 over x^2 - 2x

Scilla [17]

Answer:

2x^2-2x

Step by Step Explanation:

The 2 x^2 come together to form 2x^2 and since there is no other number that has x but no ^2 -2x stays the same.

8 0

3 years ago

1. The chart below represents the percentage of Americans traveling to each destination.

lidiya [134]

B 23%
6100 planned to travel to the united states mid west

7 0

3 years ago

A given line has the equation 10x + 2y = −2.

stepladder [879]

10x + 2y = -2

2y = -10x -2

y = -5x - 1 (slope is -5 and a parallel line will have the same slope)

y = mx + b

slope(m) = -5

12 = -5(0) + b

12 = 0 + b

12 = b

so the parallel line is y = -5x + 12

hope this helps, God bless!

3 0

3 years ago

What is 3.8 repeating as a fraction in simplest form

Olin [163]

$\bf 3.8888888\overline{8}\\\\
-------------------------------\\\\
x=3.8888888\overline{8}\qquad thus\qquad 
\begin{array}{llcll}
10x&=&38.888888\overline{8}\\
&&\downarrow \\
&&35+3.8888888\overline{8}\\
&&\downarrow \\
&&35+x
\end{array}
\\\\\\
10x=35+x\implies 9x=35\implies x=\cfrac{35}{9}$

the idea being, you multiply the "x" by some power of 10 that moves the repeating part to the left of the decimal point and the split it like above.

6 0

3 years ago