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Darya [45]
2 years ago
13

PLEASE ANSWER THIS, QUICK

Mathematics
2 answers:
Korvikt [17]2 years ago
6 0

Answer:

(x, y ) = ( - 3 , 14 )

Step-by-step explanation:

I hope this helps you. Best of luck.

babymother [125]2 years ago
4 0
Okay first you need to add both equations together

7x + 6y = 63
+ - 5x - 6y = -69
—————————
2x = -6

Then divide both sides

x = -3

Then plug -3 back into one of the equations to find y

7(-3) + 6y = 63
= -21 + 6y = 63
—-> 6y = 84

Divide both sides

y = 14

The answer is (-3, 14)
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How do i do numer 1 and 3.?!?!?!?!?!
Anna11 [10]
To solve each question, all you've got to do is add the two numbers together and then graph the result on the number line.

1.) -3 +(-1.5)
Add 3 to -1.5. It would be the same as subtracting 1.5 from -3(-3 - 1.5)
Final Answer: -4.5<span>
Or, since you are using a number line, start on -3 and go left 1.5 units and you will land on the -4.5 point. You go to the left because you are adding a negative number..
</span>
2.) 1.5+3.5
Add<span>
Final Answer: 5
</span>Or, since you are using a number line, start on 1.5 and go to the right 3.5 and you will land on 5. You go to the right because you are adding a positive number.<span>

</span>3.) 1/4 + 1/2
Multiply 1/2 by 2 to make both fractions have the same denominator
1/4 + 2/4
Add<span>
Final Answer: 3/4
</span>Or, since you are using a number line, start on 1/4 and go up 2/4 and you will land on 3/4 as the result.<span>

</span>4.) -1 1/2 + (-1 1/2)
Add -1 1/2 to -1 1/2. This would be the same as subtracting 1 1/2 from -1 1/2(-1 1/2 - 1 1/2)<span>
Final Answer: -3
</span><span>Or, since you are using a number line, start on -1 1/2 and go to the left 1 1/2 and you will land on the -3 point.</span>
8 0
3 years ago
PLZ HELP ME W THIS !!! MARKIN BRAINIEST !!!
satela [25.4K]

Answer:

A

Step-by-step explanation:

5 0
3 years ago
Plz plz help thanks in advance
Natali [406]

Answer:

17

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
On Sundays, cars arrive at Sami Schmitt's Scrub and Shine Car Wash at the rate of 8 cars per twenty minute interval. Using the P
Sliva [168]

Answer:

The probability that five cars will arrive during the next thirty minute interval is 0.0127.

Step-by-step explanation:

Let <em>X</em> = number of cars arriving at Sami Schmitt's Scrub and Shine Car Wash.

The average number of cars arriving in 20 minutes is, 8.

The average number of cars arriving in 1 minute is, \frac{8}{20}=\frac{2}{5}.

The average number of cars arriving in 30 minutes is, \frac{2}{5}\times 30=12.

The random variable <em>X</em> follows a Poisson distribution with parameter <em>λ</em> = 12.

The probability mass function of <em>X</em> is:

P(X=x)=\frac{e^{-12}12^{x}}{x!};\ x=0,1,2,3...

Compute the probability that 5 cars will arrive in 30 minutes as follows:

P(X=5)=\frac{e^{-12}12^{5}}{5!}

                =\frac{6.1442\times10^{-6}\times 48832}{120}

                =0.0127

Thus, the probability that five cars will arrive during the next thirty minute interval is 0.0127.

6 0
3 years ago
X-7y = - 4<br> y = 8x - 4
Juli2301 [7.4K]

Answer:

no clue

Step-by-step explanation:

i would help u if I new what it was

8 0
3 years ago
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