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patriot [66]
2 years ago
12

It’s all yours point and brainlist just get it right

Mathematics
2 answers:
aniked [119]2 years ago
5 0

J. 144

Step-by-step explanation:

4 ÷ 5 = 0.8

0.8 × 180 = 144

ser-zykov [4K]2 years ago
4 0
The answer has to be 144 since it is the only one smaller than 180
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Step-by-step explanation:

Refer to attachment

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7 0
3 years ago
What is the product?<br> 3x[-6 -14 -11 -9]
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8 0
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In a class of 25 students, 15 of them have a cat, 16 of them have a dog and 3 of them have neither
Sphinxa [80]

Answer:

9/25

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3 0
2 years ago
The question is in the picture.
dangina [55]
<h2><u>Part A:</u></h2>

Let's denote no of seats in first row with r1 , second row with r2.....and so on.

r1=5

Since next row will have 10 additional row each time when we move to next row,

So,

r2=5+10=15

r3=15+10=25

<u>Using the terms r1,r2 and r3 , we can find explicit formula</u>

r1=5=5+0=5+0×10=5+(1-1)×10

r2=15=5+10=5+(2-1)×10

r3=25=5+20=5+(3-1)×10

<u>So for nth row,</u>

rn=5+(n-1)×10

Since 5=r1 and 10=common difference (d)

rn=r1+(n-1)d

Since 'a' is a convention term for 1st term,

<h3><u>⇒</u><u>rn=a+(n-1)d</u></h3>

which is an explicit formula to find no of seats in any given row.

<h2><u>Part B:</u></h2>

Using above explicit formula, we can calculate no of seats in 7th row,

r7=5+(7-1)×10

r7=5+(7-1)×10 =5+6×10

r7=5+(7-1)×10 =5+6×10 =65

which is the no of seats in 7th row.

8 0
3 years ago
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