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otez555 [7]
3 years ago
15

7x+4y=16 find the slope and y intercept

Mathematics
1 answer:
docker41 [41]3 years ago
6 0

Answer:

7x is the slope

Step-by-step explanation:

And the y intercept is 16

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A survey of 500 randomly selected adults found that 57% say that they would take a ride in a fully self-driving car. The 95% con
Novay_Z [31]

Answer:

Yes; Since the confidence interval limits are both greater than 50%, we can reasonably conclude that more than half of all adults would take a ride in a fully self-driving car.

Step-by-step explanation:

From the question we are told that

     The sample size is  n =  500

     The sample proportion is  \r  p  =  0.57

     The  95% confidence interval is (0.5266, 0.6134)

Looking at the 95% confidence level interval we see that the sample proportion is within the interval and given that the confidence interval limits are both greater than 50%, we can reasonably conclude that more than half of all adults would take a ride in a fully self-driving car.

4 0
3 years ago
15. Ankita bought 20 copy for Rs. 25 each. She got profit of Rs.200 while selling it. Find selling price of the copies. no​
goblinko [34]

Answer:

SP=Rs.700

Step-by-step explanation:

<em>cost</em><em> </em><em>price</em><em> </em><em>of a</em><em> </em><em>copy</em><em>=</em><em>R's</em><em>.</em><em>2</em><em>5</em>

<em>cost price of</em><em> </em><em>2</em><em>0</em><em>c</em><em>o</em><em>p</em><em>y</em><em>=</em><em>2</em><em>0</em><em>×</em><em>2</em><em>5</em><em>=</em><em>R</em><em>s</em><em>.</em><em>5</em><em>0</em><em>0</em>

<em>profit</em><em>=</em><em>Rs</em><em>.</em><em>2</em><em>0</em><em>0</em>

<em>selling</em><em> </em><em>price</em><em> </em><em>of</em><em> </em><em>2</em><em>0</em><em> </em><em>copies</em><em>=</em><em>?</em>

<em>Now</em><em>,</em><em> </em><em>we</em><em> </em><em>know</em><em> </em><em>that</em><em>,</em><em> </em>

<em>profit</em><em>=</em><em>sp-cp</em>

<em>or</em><em>,</em><em> </em><em>2</em><em>0</em><em>0</em><em>=</em><em>s</em><em>p</em><em>-</em><em>5</em><em>0</em><em>0</em>

<em>or</em><em>,</em><em> </em><em>2</em><em>0</em><em>0</em><em>+</em><em>5</em><em>0</em><em>0</em><em>=</em><em>s</em><em>p</em>

<em>thus</em><em>,</em><em> </em><em>SP</em><em>=</em><em>Rs</em><em>.</em><em>7</em><em>0</em><em>0</em>

Hence, the selling price of 20copies is 700.

8 0
3 years ago
The ratio of the number of coins to the number of notes Mrs James has in her purse is 2 : 5.
Ivahew [28]

Answer:

85 notes

Step-by-step explanation:

2 coins : 5 notes

1 coin   :    2.5 notes

34 coins : __ notes

^

I

I

(multiply by 2.5 to get amount of notes)

3 0
4 years ago
Julie buys a pair of earrings for $7. Now she would like to the same earrings for 2 friends. How much will she spend for all 3 p
ankoles [38]
The easiest way to do this is to multiple 7 and 3, which gives you 21. Julie will spend $21 on the gifts.
5 0
3 years ago
Read 2 more answers
OMG?!?!?!!?! HELP!!!?!?!?! PLEASE !?!?!? Thanks to those who do :D &lt;3
Ad libitum [116K]
20 hours because 1800/90=20
7 0
3 years ago
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