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RoseWind [281]
3 years ago
7

Please solve this !!

Mathematics
1 answer:
Arte-miy333 [17]3 years ago
6 0
P= 2(5t-3.5) + 2(3.5t+6)

10t-7 + 7t+12

the perimeter of the rectangle is 17t + 5

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The cost of joining a DVD club and buying DVDs is a linear function of the number of DVDs bought. The cost of 3, 5, and 7 DVDs i
suter [353]

Answer:

A. y = 3x + 3

Step-by-step explanation:

Slope = change in y / change in x

From 3 to 5 (x) = +2

From 12 to 18 (y) = +6

slope, m = 6/2 = 3

Using point slope form

y - y1 = m (x - x1)

y - 12 = 3 (x - 3)

y - 12 = 3x - 9

y = 3x -9 + 12

y = 3x + 3

5 0
4 years ago
Tell whether the lines for each pair of equations are parallel,perpendicular,or neither.
frutty [35]

Answer:

The lines for each pair of equations are perpendicular, because the slopes for both of these have negative reciprocals.

Step-by-step explanation:

-5x+10y=5

x-2y=-1

2y=x-(-1)

2y=x+1

y=1/2x+1/2

4 0
3 years ago
Read 2 more answers
Williiam lost 25% of his marble,gave 1/6 of the remainder to his.Brother and had 120 marbles left.How many marbles did he have a
bija089 [108]

Answer:

Number of marbles with Williams at the starting = 192

Step-by-step explanation:

Let total number of marbles with Williams = m

He lost marbles = 25% of the total number

                           = \frac{25}{100}\times m

                           = \frac{m}{4}

Remaining marbles with Williams = m - \frac{m}{4}

                                                        = \frac{3m}{4}

He gave marbles to his brother = \frac{1}{6}th of the remaining marbles

                                                    = \frac{1}{6}\times \frac{3m}{4}

                                                    = \frac{m}{8}

Remaining marbles after giving marbles to his brother = 120

Therefore, \frac{3m}{4}-\frac{m}{8}=120

\frac{6m}{8}-\frac{m}{8}=120

\frac{5m}{8}=120

m = \frac{120\times 8}{5}

m = 192

Number of marbles with Williams at the starting = 192

5 0
3 years ago
27x+5+15x-2 what is the degree angle
Zielflug [23.3K]
The original motivation for choosing the degree as a unit of rotations and angles is unknown. One theory states that it is related to the fact that 360 is approximately the number of days in a year.[5] Ancient astronomers noticed that the sun, which follows through the ecliptic path over the course of the year, seems to advance in its path by approximately one degree each day
7 0
3 years ago
Identify the property 65 • 92 • 17 = 92 • 17 • ×
Mars2501 [29]

answer is 65


solving

65x92x17=92x17x

65=x

x=65

6 0
3 years ago
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