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Firdavs [7]
3 years ago
10

You are buying decorations for a birthday party. Six rolls of crepe paper and 20 balloons cost $11.90. After you start decoratin

g, you need more supplies. You buy 2 more rolls of crepe paper and 15 more balloons for $6.05. How much did each roll of crepe paper cost?
A) $1.15
B) $1.58
C) 22.6¢
D) 25¢
Mathematics
1 answer:
Kryger [21]3 years ago
7 0
Balloons are $0.25 per piece, and rolls of crepe paper are $1.15. In result, your answer would be A. 
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The vertices of ΔGHI are G (2, 4), H (4, 8), and I (8, 4). The vertices of ΔJKL are J (1, 1), K (2, 3), and L (4, 1). Which conc
Klio2033 [76]

Answer:

They are similar by the definition of similarity in terms of a dilation.

Step-by-step explanation:

The first step is finding the sides of each triangle.

In triangle GHI, we have that:

GH = sqrt((4-2)^2 + (8-4)^2) = 4.4721

HI = sqrt((8-4)^2 + (4-8)^2) = 5.6569

IG = sqrt((2-8)^2 + (4-4)^2) = 6

Now, for the triangle JKL, we have:

JK = sqrt((2-1)^2 + (3-1)^2) = 2.2361

KL = sqrt((4-2)^2 + (1-3)^2) = 2.8284

LJ = sqrt((1-4)^2 + (1-1)^2) = 3

The triangles are not congruent, because the sides are different

They are similar, because their sides have a proportion (sides of GHI are 2 times the sides of JKL). If they are similar, they have the same angles.

The ratio of their corresponding sides is 1:2, not 1:3

The ratio of their corresponding angles is 1:1, not 1:3

3 0
3 years ago
Georgia wants to purchase a piece of fabric that is between 64 and 68 inches long. She can choose between three pieces of fabric
sineoko [7]
The answer is B. Mark as brainliest if this helped you out :). (It would be 66 inches long)
6 0
3 years ago
Read 2 more answers
The sum of two numbers is -6. The difference is 16. Find the two numbers.
Bess [88]

Answer:

-5\:\mathrm{and}\: 11

Step-by-step explanation:

We can write the following system of equations:

\begin{cases}x+y=6\\x-y=16\\\end{cases}

Adding both equations together, we isolate x and get:

2x=22,\: x=11

Plugging x=11 in any of the equations, we can solve for y:

11+y=6,\: y=-5

Verify that the solution pair (11, -5) works \checkmark

Therefore, the two numbers are \fbox{$-5\:\mathrm{and}\: 11$}.

7 0
2 years ago
The following table shows a proportional relationship between m and n
slavikrds [6]

Answer:

m = 7 n ( the '=' is meant to be the proportional sign)

Step-by-step explanation:

21 ÷ 3 = 7

35 ÷ 5 = 7

56 ÷ 8 = 7

7 0
3 years ago
Read 2 more answers
-16 + x = -15<br><br> CAN SOMEONE HELP ME PLEASE
Maksim231197 [3]

Answer: x= 1

Step-by-step explanation: Look at pic down below.

7 0
2 years ago
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