Angela bought gifts for her friends, and each gift costs 10$. Let y represent the total cost and x represent the number of gifts. Write an equation to represent the proportional relationship between the total cost and the number of the gifts she bought.

Answers

Answer 1

Answer:

Answer:

Step-by-step explanation:

If Angela bought gift for her friend and each gift costs 10$. This means that the more the number of her friends, the more the money she will pay and vice versa. This is known as a direct relationship.

Let y represent the total cost and

x represent the number of gifts

According to direct variation]

y ∝ x

y = kx

k is the constant of proportionality

If each gift item cost $10, x gift will cost 10x. The constant of proportionality in this case will be 10. Substituting, the equation will become;

y = 10x

Hence the required relationship is y = 10x

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Not enough information to this question

so im trying to help my little brother with his home work an i suck at math so can anyone tell me what 5/9X54

Answers

First do 5 divided by 9. Then 0.56 times 54. Your answer is 30. Have a great day!

So, in this problem, its basically multiplying a whole number with a fraction. So what you do is.... multiply 54 by 5 and you get 120. Then, you do 54 multiplied by 9 and get 486. Then, you will have 120/486! That will be your answer to this problem.

Refer to pictures above real help please

Answers

Answer:

38.7°

Step-by-step explanation:

∆ = Tan-1(opposite/ Adjacent)

=Tan-1(8/10)

= 38.66°

= 38.7° to n nearest tenth

The graph of the following system of equations is (4 points)-2x + y = 3
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a. overlapping lines
b. parallel lines
c. intersecting lines

Answers

$\left\{\begin{array}{ccc}-2x+y=3\n4x+2y=2&|divide\ both\ sides\ by\ 2\end{array}\right\n\left\{\begin{array}{ccc}-2x+y=3&|add\ (-2x)\ to\ both\ sides\n2x+y=1&|subtract\ 2x\ from\ both\ sides\end{array}\right\n\left\{\begin{array}{ccc}y=2x+3\ny=-2x+1\end{array}\right\Rightarrow\ the\ slope \left\{\begin{array}{ccc}m=2\nm=-2\end{array}\right\ |different\n\nConclusion:\ \boxed{\boxed{C}\ intersecting\ lines}$

-2x + 1y = 3 ⇒ 4x - 2y = -6
4x + 2y = 2 ⇒ 4x + 2y = 2
       -4y = -8
      -4    -4
      y = 2
      4x + 2(2) = 2
      4x + 4 = 2
   -4 -4
      4x = -2
   4 4
   x = -1/2
   (x, y) = (-1/2, 2)
The answer to the problem is C. intersecting lines.

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Answers

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A triangle has a perimeter of 18 inches. If one side has length 8 inches, find the length of the shortest side if the other lengths are in the ratio of 2 units : 3 units.

Answers

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OK I need help the answer is c but I didn't understand the teacher explanation pls help me