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Katen [24]
3 years ago
10

A rectangle has a length of 5x - 15 and a length of 2x + 7. What is the area of the rectangle?​

Mathematics
1 answer:
Sergeu [11.5K]3 years ago
3 0
2(5x-15) + 2(2x+7) =0
10x-30+4x+14 = 0
14x = 16
x = 8/7
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Jimmy gets a discount of 35% for a pair of sneakers with an original price of $70 he also gets a discount of 25% on a shirt with
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$32.00

Step-by-step explanation:

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3 years ago
What’s the inequality?
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Answer:

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7 0
3 years ago
Please help
lubasha [3.4K]

Let us check series : -10 /-2 = 5 -50/-10 = 5

so it is a geometric series with a= -2 and r= 5

sum formula for n terms of geometric series = a ( r^n -1 ) /( r-1)

here we find S5 that is n= 5 = -2 ( 5^ 5 - 1) /( 5-1)

= -2 ( 3125 -1) / 4 = -1562

second series is : 1.5/1 = 1.5 2.25/1.5 = 1.5

this is also geometric series but n = 12 a= 1 and r= 1.5

we use same formula

S12 = 1 ( (1.5) ^12 -1) /( 1.5-1) =

128.74 / 0.5 = 257.49

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= 4095

Answers : -1562 , 257.49 , 4095

8 0
3 years ago
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