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aalyn [17]
2 years ago
11

Brazil's currency is called the real and is denoted with this symbol: R$. A plumbing contractor allotted R$10,236 in his bank ac

count to complete three residential jobs. If he estimates Job 1 to cost R$2,477, Job 2 to cost R$2,263 and Job 3 to cost R$3,218, how much money will he have left in the account for unexpected costs?
Mathematics
1 answer:
Delicious77 [7]2 years ago
4 0

Step-by-step explanation:

I added together his estimations and then subtracted the total from how much money was in his bank.

2,477+2,263+3,218=7,958

10,236-7,958=2,278

I really hope this helps

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Which of the following values for x and y make the equation 4x + 2y + 3 = 19 true?
Alexus [3.1K]
To answer the question above, substitute the values of x from each choice then solve for y. This is shown below.

A. x = 5,  4(5) + 2y + 3 = 19 , y = -7

B. x = 4,   4(4) + 2y + 3 = 19 , y = 0

C. x = 3,   4(3) + 2y + 3 = 19 , y = 2

D. x = 2,   4(2) + 2y + 3 = 19 , y = 4

From the calculations above, only the third choice has a similar value of y to the value in calculations. 

Thus, the answer is letter C. 
7 0
2 years ago
Read 2 more answers
Algebraically solve for x
elena55 [62]
<h2>Steps</h2>

So firstly, we have to make all the denominators the same. To do this, we need to find their LCD, or lowest common denominator. In this case, the LCD is gonna be 6(x + 3). With each fraction, multiply the numerator and denominator by the term that will get the denominator to the LCD:

\frac{-3}{x+3}*\frac{6}{6}=\frac{-18}{6(x+3)}\\\\\frac{1}{2}*\frac{3(x+3)}{3(x+3)}=\frac{3(x+3)}{6(x+3)}\\\\\frac{x}{6}*\frac{x+3}{x+3}=\frac{x(x+3)}{6(x+3)}\\\\\frac{-1}{2}*\frac{3(x+3)}{3(x+3)}=\frac{-3(x+3)}{6(x+3)}\\\\\\\\\frac{-18}{6(x+3)}+\frac{3(x+3)}{6(x+3)}=\frac{x(x+3)}{6(x+3)}+\frac{-3(x+3)}{6(x+3)}

Now with all the denominators the same, we can cancel them out by multiplying both sides by 6(x + 3):

-18+3(x+3)=x(x+3)+-3(x+3)

Next, solve the multiplications:

-18+3x+9=x^2+3x-3x-9

Next, combine like terms:

3x-9=x^2-9

Next, subtract both sides by 3x and add both sides by 9:

0=x^2-3x

Next, we want to make the right side of the equation a perfect square. To find the constant of the soon-to-be perfect square, divide the x coefficient by 2 and square the quotient. Add the result onto both sides of the equation:

-3\div 2=-1.5\\(-1.5)^2=2.25\\\\2.25=x^2-3x+2.25

Now, factor the right side:

2.25=(x-1.5)^2

Next, square root both sides of the equation:

\pm\ 1.5=x-1.5

Next, add both sides by 1.5:

1.5\pm 1.5=x

Lastly, solve the left side twice - once with the plus sign and once with the minus sign:

3,0=x

<h2>Answer</h2>

<u>In short, x = 0 and 3.</u>

4 0
2 years ago
What does x =? ...........
zloy xaker [14]
4/x+9 = 9/x+5.... x= -61/5 or -12 1/5
try using the app Photomath, it’s really useful
7 0
2 years ago
Need Help ASAP!!!
vazorg [7]

Answer:

The answer is:

A. It is in the quadrants I and III.

Step-by-step explanation:

I am not sure if this is correct, but I tried my best :)

I hope this helped~

8 0
2 years ago
Jose goes into the deli and buy 2 sandwiches and 2 sodas. Write two different ways (in
baherus [9]

Answer:

Step-by-step explanation:

2+2=4

Inverse

4-2=2

5 0
2 years ago
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