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3 years ago

Explain your answer

Mathematics

1 answer:

N76 [4]3 years ago

5 0

x is equal to - 2/3 after collecting like terms

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Counted a total of 40 white cars and yellow cars there were 9 times as many as white cars as yellow cars. how many white cars di

Law Incorporation [45]

Let W = number of white cars, and Y = number of yellow cars.
There were 9 times as many white cars as yellow cars. This means that the number of white cars was 9 times more than the number of yellow cars. This can be translated by the expression:
9Y = W
The person counted 40 cars in total:
W + Y = 40

So we get the system:
$\left \{ {{W+Y=40} \atop {9Y=W}} \right.$

In the first equation, we multiply by 9:
9W + 9Y = 360
In the second equation:
9Y= W
W-9Y = 0

Then we add the first with the second equation:
9W + 9Y + W - 9Y = 360
10 W = 360
W = 36

So He counted 36 white cars.

Hope this Helps! :)

8 0

3 years ago

X+1 - and h(x) = 4 - X, what is the value Oil CD Nior wla olo

timofeeve [1]

Answer:

8/5

Step-by-step explanation:

$(g\circ h)(-3)$ means $g(h(-3))$ .

Start with the inside first: h(-3).

h(-3) means use the function called h and replace the x with -3. The expression that is called h is 4-x.

4-x evaluated at x=-3 gives us 4-(-3)=4+3=7.

So the value for h(-3) is 7, or h(-3)=7.

Now this is what we thus far:

$(g\circ h)(-3)=g(h(-3))=g(7)$ .

g(7) means use the function called g and replace x with 7. The expression that is called g is (x+1)/(x-2).

(x+1)/(x-2) evaluated at x=7 gives us (7+1)/(7-2)=(8)/(5)=8/5.

This is our final answer:

$(g\circ h)(-3)=g(h(-3))=g(7)=\frac{8}{5}$ .

7 0

2 years ago

Help please will give brainliest due at 4:00 pm

k0ka [10]

Answer: To me it looks like A or D.

Step-by-step explanation: i would probably go with A because thats the only information it gave. hope this helped :)

8 0

2 years ago

Can someone please explain to me how to find the value of m? thanks -10 = -10 + 7m

GarryVolchara [31]

      -10 = -10 + 7m

Add 10 to each side: 0 = 7m

Divide each side by 7 : 0 = m

Please take a second and just LOOK at the equation you started with.
It says:

-- You have this number '-10' .

-- Your number -10 is going to be exactly the same size
   after you add 7 of something to it.

The ONLY way that could happen is if the 'something' is 'nothing' .

   ' m ' must be nothing.

8 0

3 years ago

Read 2 more answers

Decide whether the method of undetermined coefficients together with superposition can be applied to find a particular solution

docker41 [41]

Answer:

D. No, because the differential equation does not have constant coefficients.

Step-by-step explanation:

The undetermined coefficient method cannot be applied to non homogeneous variables. The differential equation does not have constant variables therefore the method of undetermined superposition can not be applied. To complete a solution of non homogeneous equation the particular solution must be added to the homogeneous equation.

6 0

3 years ago

Explain your answer​

Explain your answer