Answer:
x = 1/5
y = 6
Step-by-step explanation:
System:
{5x + y = 7
{20x + 2 = y
First equation:
5x + y = 7 -> y = -5x + 7
Plug into second equation:
20x + 2 = -5x + 7
Subtract 2 from both sides:
20x = -5x + 5
Add 5x to both sides:
25x = 5
Divde both sides by 25:
x = 5/25 -> 1/5
~~~~~~~~~~~~~~~~~~~~~~~~~~~`
Come back to the first equation:
5x + y = 7
Plus in our x:
5(1/5) + y = 7
Multiply:
1 + y = 7
Subtract 1 from both sides:
y = 6
Hope this helps, have a nice day! :D
he should buy 11 sets of forks, hope this helped! <3
792 ways to make his decisikn. Multiply all 4 numbers 4x3x11x6 = 792
J + 1/2= 3 9/14
convert 3 9/14 to improper fraction
J + 1/2= [(3*14)+9]/14
J + 1/2= 51/14
subtract 1/2 from both sides
J= 51/14 - 1/2
change both to common denominators (of 14 in this case)
J= 51/14 - 7/14
subtract numerators only
J= 44/14
simplify numerator and denominator by 2
J= 22/7
convert back to mixed number
J= 3 1/7
ANSWER: J= 3 1/7
Hope this helps! :)
The summation of the money Myla spend altogether is $41.9
As in the given problem we can see Myla bought
a shirt for $25.36 and
a hat for $5.09 and
a belt for $11.45.
Hence we need to know the cummulative price she spend altogether.
To get the total price we should add the price of shirt hat and belt.
Summing all the prices we get
$25.36+$5.09+$11.45=$41.9
As all the quantities are given in one currency thus we can add them by simple addition formula.
Thus she spend $41.9 altogether at the mall.
Learn more about the summation here:
brainly.com/question/9458437
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