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Vaselesa [24]
3 years ago
15

5x+2y = 19 1x + 4y=13

Mathematics
2 answers:
zalisa [80]3 years ago
8 0
{x,y} %}14 because u have to get the number the do _____ then ____
Mama L [17]3 years ago
7 0

Answer:

{x,y} = {25/9,23/9}

Step-by-step explanation:

// Solve equation [2] for the variable  x  

 

 [2]    x = -4y + 13

// Plug this in for variable  x  in equation [1]

  [1]    5•(-4y+13) + 2y = 19

  [1]     - 18y = -46

// Solve equation [1] for the variable  y  

  [1]    18y = 46  

  [1]    y = 23/9  

// By now we know this much :

   x = -4y+13

   y = 23/9

// Use the  y  value to solve for  x

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Natali5045456 [20]

Answer:

C) 42/7 = n

Step-by-step explanation:

A week is 7 days, so, to figure out how many cups of dog food she gives her dog daily, we would need to do her weekly amount, 42, divided by 7, the amount of days in a week :)

6 0
2 years ago
Simplify the ratio of 1:3¼<br><br>​
forsale [732]

Answer:

\frac{4}{13}

Step-by-step explanation:

1÷3\frac{1}{4}=3+\frac{1}{4},  3×\frac{4}{4}

1÷\frac{13}{4}

4 0
2 years ago
a bookstore has 148 books about people and 136 books about places some books were sold now there are a hundred and thirty-seven
katrin2010 [14]
147 books were sold. 148+136=284. 284-137=147
6 0
3 years ago
Read 2 more answers
Math question down below
Alja [10]

Answer:

E

E is the only one that ends with 70 and is also all multiples of 6.

4 0
4 years ago
The sales tax in your city is 8.8% and an item costs 63 dollars before tax how much tax would you pay them on that item roubd to
Alexandra [31]

Answer:

The amount of tax would be $5.59

Step-by-step explanation:

To find this amount, simply multiply the costs by the percentage (8.88%).

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