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3 years ago

What is the x-value of the solution to this system of equations? x = 2y − 4 7x + 5y = -66

Mathematics

1 answer:

saveliy_v [14]3 years ago

3 0

X=2y - 4 7 xI hope it helps sorry if it doesn’t

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-6 + -4 + 3 = ? Adding integers

n200080 [17]

Step-by-step explanation:

Hey there!

Here,

$= - 6 + ( - 4) + 3$

While working with them remember some rules;

(-) + (-) = sign (-) but add them.
(+) + (+) = sign (+) and add.
(+) - (+) = subtract but keep sign of greator number.
(-) -(-) = subtract and keep the sign of greator number.

Likewise in your question,

$= - 6 - 4 + 3$

$= - 10 + 3$

$= - 7$

Hope it helps...

8 0

3 years ago

Read 2 more answers

Plz help me well mark brainliest!..

VladimirAG [237]

9514 1404 393

Answer:

(a) (-3/4, 1/2)

Step-by-step explanation:

There are 4 grid lines between 0 and 1 in each direction, so each grid line represents 1/4 unit. Two of them is 1/2 unit; 3 of them is 3/4 unit. The x-dimension is listed first in the ordered pair.

Point S has coordinates (-3/4, 1/2).

5 0

3 years ago

How to find a whole number in this question 4% of ... is 56?

Natalka [10]

$\frac{4}{100} * x=56$
$\frac{1}{25} * x=56$
$1400$

8 0

3 years ago

A cable car starts off with n riders. The times between successive stops of the car are independent exponential random variables

nikitadnepr [17]

Answer:

The distribution is $\frac{\lambda^{n}e^{- \lambda t}t^{n - 1}}{(n - 1)!}$

Solution:

As per the question:

Total no. of riders = n

Now, suppose the $T_{i}$ is the time between the departure of the rider i - 1 and i from the cable car.

where

$T_{i}$ = independent exponential random variable whose rate is $\lambda$

The general form is given by:

$T_{i} = \lambda e^{- lambda}$

(a) Now, the time distribution of the last rider is given as the sum total of the time of each rider:

$S_{n} = T_{1} + T_{2} + ........ + T_{n}$

$S_{n} = \sum_{i}^{n} T_{n}$

Now, the sum of the exponential random variable with $\lambda$ with rate $\lambda$ is given by:

$S_{n} = f(t:n, \lamda) = \frac{\lambda^{n}e^{- \lambda t}t^{n - 1}}{(n - 1)!}$

5 0

3 years ago

Please help me solve this

Oduvanchick [21]

$\dfrac{x}{ - 3} < - 4 \\\\ x > 12$

P. S. The inequality sign changed or flipped when there's a negative figure involved.

Hope this helps. - M

3 0

3 years ago