All categories

2 years ago

6x+2y= 6x+2y= \,\,16 16 2x-2y= 2x−2y= \,\,32 32

Mathematics

1 answer:

Ivanshal [37]2 years ago

3 0

Answer:

x = 6, y = -8

Step-by-step explanation:

First we take the equations side by side and put them like this:

6x + 2y = 16

+ 2x - 2y = 32

8x = 48

Then solve for x.

x = 6

Then insert x back into either equation

2(5) - 2y = 32

10 - 2y = 32

solve for y,

y = -10

You might be interested in

Differentiate between interest and interest rate

vodka [1.7K]

Answer:

<h3 /><h3>Interest:</h3>

Interest is the cost of borrowing money, and the money you earn from your savings.

<h3 /><h3>Interest rate</h3>

Interest rates indicate this cost or return as a percentage of the amount you are borrowing or lending (since you are “lending” your savings to the bank)

<h3>❤◍ jess bregoli ◍❤</h3>

#keep learning!!

5 0

2 years ago

Eden has a part time job. She gets paid £7. 20 per hourthis week she worked for 18 1/2 hourswork out Eden's total pay for this w

Dafna1 [17]

Answer:

$133.20

Step-by-step explanation:

Since the amount of hours she worked isn't a whole number, we can first separate 18 and 1/2 and work the problem out one at a time.

1. Multiply 7.20 by 18 to get 129.60

2. Multiply 0.50 by 7.20 to get 3.60.

3. Add 129.60 and 3.60 together to get the answer, 133.20.

5 0

1 year ago

Three (3) is a common factor of 21 and 22. O A. True B. False SUBMIT

Svetradugi [14.3K]

Answer:

false.

Step-by-step explanation:

Factors for 21: 1, 3, 7, and 21. Factors for 22: 1, 2, 11, and 22.

7 0

1 year ago

Read 2 more answers

Hi quick whats 18 x 1.25 step by step !!

Ivan

Answer:

22.5

Step-by-step explanation:

125

x 18

---------

1. first set up your problem

2 4

125

x 18

------

1000

2. next multiply the 8 by 5 getting 40, drop the 0 anf move the 4 to the top above 2.

3. multiply 8 by 2 getting 16, then add the 4 you have ontop of the 2 to the 16 getting 20. Drop the 0 and bring the 2 over and place it above the one.

4. multiply 8 by 1 getting 8 then add the 2 above the 1 to 8 getting 10. Then put the ten infront of the tw zeros. 1000

125

x 18

--------

1000

Next add a 0 as a place filler under the 0 at the end.

125

x 18

-------

1000

1250

Then multiply the 1 by 5, then 1 by 2, then finnaly 1 by 1, getting you 1250.

1000

+1250

add together

getting 2250

then move 2 decimal places over to get 22.5

3 0

2 years ago

Please do this for me I am very lazy

Alexandra [31]

First, let's turn all the numbers into improper fractions so that we can find the answer easier.

-2 $\frac{1}{4}$ = r - $\frac{4}{5}$

- $\frac{9}{4}$ = r - $\frac{4}{5}$

Now we have to isolate 'r'.

First, we have to make sure that the variable is on one side and all the numbers are on the other side.

To do this, we have to add $\frac{4}{5}$ to both sides.

In order to do this, we need to ensure that both fractions have a common denominator.

- $\frac{9}{4}$ = r - $\frac{4}{5}$

Ensure that the denominators are the same:

$\frac{45}{20}$ = r - $\frac{16}{20}$

$\frac{45}{20}$ + $\frac{16}{20}$ = r

$\frac{61}{20}$ = r

Good luck!

6 0

2 years ago