If there are 7 white t shirts on the shelve for every 3 purple shirts, how many white shirts are there if there are 40 purple and white

Answers

Answer 1

Answer:

If there are 7 white t-shirts on the shelf for every 3 purple shirts, we can use this ratio to determine the number of white shirts if there are a total of 40 purple and white shirts.

To find the number of white shirts, we need to divide the total number of shirts by the sum of the parts in the ratio (7 + 3 = 10), and then multiply that result by the number of parts representing white shirts (7).

So, for every 10 shirts, 7 of them are white.

If there are a total of 40 purple and white shirts, we can set up a proportion:

7 white shirts / 10 total shirts = x white shirts / 40 total shirts.

To solve for x, we cross-multiply and solve the equation:

7 * 40 = 10 * x

280 = 10 * x

280 / 10 = x

28 = x

Therefore, there are 28 white shirts among the 40 purple and white shirts.

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If A=x+1, B=x^+2x-1, C=2x what is AB+C in simplest form
abby is putting tiles on a floor she needs 48 tiles and 8 rows each row has 6 blue tiles the rest are purple how many purple tiles will she need
Joel opened a checking account. His bank charges him a service fee of $4.95each month. Assume y = total cost of having the account and x = number of months.

M = 1, (- 4, -6) does anyone know the answer to this

Answers

Hello,
Very clear your question !!!
I suppose m is the slope of a line
and the line passe through (-4,-6)

and you ask the equation of the line!

y+6=1(x+4)==>y=x-2

In the equation Q – 12 = 89, what is the value of Q

Answers

The answer is 101 because you add 89 and 12

Q-12=89 if you add 12 to 89 you get 101 and you cant divide 101 by Q because Q=1Q and you would just get 101 so i guess this is right

Which unit of measurement would be the most appropriate to measure how much water is in a lake?A : Liter

B : Kiloliter

C : Gram

D : Kilometer

Answers

B would be most appropriate to measure a large volume of water such as in a lake- KILOLITER

Kiloliter since the volume of water is large.

Grams and kilometer are for mass and distance respectively

Please answer quickly! Brainliest and thanks IF HELPFUL and CORRECT! Lots of points!

Answers

Answer:

f(p)::500=25p

Step-by-step explanation:

The unknown is how many packs she has.

Therefore, the total amount 500 is equal to the number of packs (p) and how may are per pack.

9.45 x 10^-5 In standard form

Answers

The answer is : 0.0000945
Hope this helped have a good day!

Which of the following functions are solutions of the differential equation y'' + y = sin(x)?a) y= sinxb) y= cosx
c) y=1/2sinx
d) -1/2xcosx

Answers

Answer:

Option (d)

Step-by-step explanation:

Given,

y" +y=sin x ...........(1)

The particular solution

$y_p=A x sinx +Bx cosx$

$y'_p=Axcosx+Asinx+B cosx-Bxsinx$

$y$

Putting the value of y" and y in equation (1)

$2Acosx-Axsinx-2Bsinx-Bxcosx+Axsinx+Bxcosx = sinx$

$\Rightarrow 2Acosx-2Bsinx=sinx$

Therefore 2A =0 -2B=1

⇒A=0 $\rightarrow B=-(1)/(2)$

Therefore $y_p=-(1)/(2) x cosx$

Final answer:

The solutions of the differential equation y'' + y = sin(x) are y = cos(x), y = (1/2)sin(x), and y = -(1/2)xcos(x).

Explanation:

To determine which of the given functions are solutions of the differential equation y'' + y = sin(x), we can substitute each function into the equation and check if it satisfies the equation. Let's go through each option:

Substituting y = sin(x) into the equation, we get -sin(x) + sin(x) = sin(x), which is not true. So, y = sin(x) is not a solution.
Substituting y = cos(x) into the equation, we get -cos(x) + cos(x) = sin(x), which is true. So, y = cos(x) is a solution.
Substituting y = (1/2)sin(x) into the equation, we get -(1/2)sin(x) + (1/2)sin(x) = sin(x), which is true. So, y = (1/2)sin(x) is a solution.
Substituting y = -(1/2)xcos(x) into the equation, we get (-1/2)xcos(x) + (1/2)xcos(x) = sin(x), which is true. So, y = -(1/2)xcos(x) is a solution.

Therefore, the solutions of the differential equation y'' + y = sin(x) are y = cos(x), y = (1/2)sin(x), and y = -(1/2)xcos(x).

Learn more about Solutions of a differential equation here:

brainly.com/question/33719537

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