All categories

3 years ago

-7x – 4y = 11 7x + 4y = 20

Mathematics

1 answer:

Free_Kalibri [48]3 years ago

7 0

9514 1404 393

Answer:

no solution

Step-by-step explanation:

Adding the two equations gives you ...

(-7x -4y) +(7x +4y) = (11) +(20)

0 = 31 . . . . . . false

No values of the variables will make this equation true. There is no solution.

You might be interested in

How do I solve this?

Oliga [24]

×=4 since you divide 3 and 12 by 3
So it would be 13-16 (4×4)
Your answer is -3

4 0

3 years ago

Martin deposited $9,318 in a savings account earning 2% interest, compounded annually.

Lisa [10]

Answer:

$10,249.80

Step-by-step explanation:

I'm really tired but if you want an explanation, please say so

4 0

3 years ago

A bakery sells 5 apple muffins for every 2 bran muffins.

Hunter-Best [27]

Answer:

$Apple\ muffin\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ Bran\ muffin\\10\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 4\\15\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 6\\20\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 8\\35\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 14$

Step-by-step explanation:

$For\ 5\ apple\ muffins, bran\ muffin=2\\\\Ratio\ of\ bran\ muffin\ to\ apple\ muffin=\frac{number\ of\ bran\ muffin}{number\ of\ apple\ muffin}\\\\Ratio\ of\ bran\ muffin\ to\ apple\ muffin=\frac{2}{5}\\\\Bran\ muffin=\frac{2}{5}\times apple\ muffin\\\\When\ apple\ muffin=10\\\\Bran\ muffin=\frac{2}{5}\times 10=4\\\\When\ apple\ muffin=15\\\\Bran\ muffin=\frac{2}{5}\times 15=6\\\\When\ apple\ muffin=20\\\\Bran\ muffin=\frac{2}{5}\times 20=8$

$When\ apple\ muffin=35\\\\Bran\ muffin=\frac{2}{5}\times 35=14$

6 0

4 years ago

1) how many significant digits are there in the sum of 45.10 and 102.203?

Sergio039 [100]

Oi :)

1) There are 3 significant digits
$45.10+102.203= 147.303$

2)
15 Mi/h = 22 ft/s

3)
$C= 72*m* \frac{3}{4} \\ \\ C= 72*81* \frac{3}{4} \\ \\ C= \frac{17496}{4} \\ \\ C=4374$

4)
There are 4 significant digitis. Leter C

7 0

3 years ago

Could I get some help here <br> I literally have the iq of a 2nd grader

ahrayia [7]

Answer:

x = 16

Step-by-step explanation:

Supplementary angles = 180

K + L = 180

137 + 3x - 5 = 180

132 + 3x = 180

3x = 180 - 132

3x = 48

x = 48/3

x = 16

8 0

3 years ago