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2 years ago

X-y=12 x+y=3 what is x and y and i need to show work ty

Mathematics

1 answer:

Bogdan [553]2 years ago

7 0

Answer:

x=12 y=9

Step-by-step explanation:

first we need to do this equation to get X

we don't have y so y=0

x-(0)=12

we eliminate the 0

x=12

now, we have X, now we need to find Y

substitution

x+y=3

12+y=3

y=3-12

y= 9

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URGENT!! 25 points. help on C please. this assignment is already late

andrew-mc [135]

Answer:

$7+(11-4\times 2)=10$

Step-by-step explanation:

So, this question involves you to play around with the numbers and the operations a bit. I've come up with a solution, but perhaps there are others as well.

So, we have:

$7\text{ } 11\text{ } 4\text{ } 2\text{ } =\text{ } 10$

So, what we can do is, for instance, multiply 4 and 2. Subtract that into 11. And then add the difference to 7. Thus:

$7+(11-4\times 2)=10$

This is a true number sentence. Let's do it to make sure.

First, do the operations inside the parentheses.

Multiplication comes first, so multiply:

$7+(11-8)=10$

Again, do the parentheses first. Subtract:

$7+(3)=10$

Now add:

$10=10$

So our answer is correct :)

5 0

3 years ago

A baseball tournament begins with 128 teams. After each round of games , only half of the teams are left. How many teams will be

Zanzabum

Answer:

128/2=64/2=32

Step-by-step explanation:

you really need a help with that ? you don't know how to divide by 2 ? and then to divide the result another time by 2 ?

not to mention that you could achieve that with in division by 4 (as this is the save as dividing by 2 and then again by 2).

putting such questions in here is a farce and a waste of time for the helping people.

3 0

3 years ago

Read 2 more answers

Find the difference: -4- (-3) =

GarryVolchara [31]

Answer:

Step-by-step explanation:

-4 - (-3)

= -4 + 3

= -1

<h3>#AyoBelajar</h3>

7 0

3 years ago

Read 2 more answers

Three fourths of x increased by 5 is - 7

Finger [1]

Answer:

$x=\frac{8}{3}$

Step-by-step explanation:

$\frac{3}{4} x+5=7$

Subtract 5 from both sides.

$\frac{3}{4}x+5-5=7-5$

Simplify.

$\frac{3}{4}x=2$

Multiply both sides by 4.

$4*\frac{3}{4} x=2*4$

Simplify.

$3x=8$

Divide both sides by 3.

$\frac{3x}{3} =\frac{8}{3}$

Simplify.

$x=\frac{8}{3}$

7 0

3 years ago

please only answer if you know the correct answer and answer all question please please please please please

chubhunter [2.5K]

Answer:

Part A: B) 3

Part B: $40

4. -1

7. 5x + 6y

8. Part A: y = 20x

8. Part B: $300

9. e > 12000 pounds

Step-by-step explanation:

Part A: x = 5t + 5

20 = 5t +5

15 = 5t

t = 3

Part B: x = 5t + 5

x = 5(7) + 5

x = 35 +5

x = 40

4. 24 - 5^2

24 - (5*5)

24 - 25 = -1

7. 2x + 4y + 5 + 2y - 5 + 3x

2x + 3x = 5x

4y + 2y = 6y

5 + (-5) = 0

5x + 6y

8. Part A:

Total = y

Lawns = x

Amount = $20

so y = 20x

8. Part B:

y = 20x

y = 20(15)

y = 300

9. The elephant weighs more than 12000 pounds

Elephant = e

More than = >

Pounds = 12000

e > 12000 pounds

7 0

3 years ago