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sashaice [31]
3 years ago
5

^ question :)))))))))))

Mathematics
1 answer:
djyliett [7]3 years ago
6 0

Answer:

the second one

Step-by-step explanation:

420 minus 20 for every week "W" until the balance is at 240 dollars

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Help please :) I will show the next questions in the other one so please answer them.
Yuki888 [10]

Answer:

Can you please take a better picture

Step-by-step explanation:

6 0
3 years ago
Do you know what the answer is to this question
RUDIKE [14]
Use subsiution]
y=-3x+5
subsitute -3x+5 for y in second equation
5x-4(-3x+5)=-3
distribute
5x+12x-20=-3
add like terms
17x-20=-3
add 20 to both sides
17x=17
divide both sides by 17
x=1
now subsitute 1 for x
y=-3x+5
y=-3(1)+5
y=-3+5
y=2


x=1
y=2
4 0
3 years ago
I need help with the second one
labwork [276]

the answer you're choosing is correct

8 0
3 years ago
Write eighteen hundredths as a decimal.
arsen [322]
If you write eighteen hundredths as a decimal it will be .18
7 0
3 years ago
A soft-drink machine is regulated so that the amount of drink dispensed is approximately normally distributed with known standar
Vsevolod [243]

Answer:

This is  a reasonable decision because the sample size has no effect on the 90% confidence interval

Step-by-step explanation:

90% confidence interval

larger sample size = 20

condition : sample mean ( x-bar ) is the same for both samples

<em>This is  a reasonable decision because the sample size has no effect on the 90% confidence interva</em>l

<u>from condition 1 :</u>

Amount of drink dispensed is normally distributed with known standard deviation , given a random sample of n drinks and the sample mean at a confidence interval of 90%

<u>for condition 2 :</u>

sample size = 20

mean = 2.25 ( assumed value )

std = 0.15 ( assumed value )

Z = 1.645 ( Z-value )

determine the 90% confidence interval

= mean ± z \frac{std}{\sqrt{n} }

= 2.25 ± 1.645 \frac{0.15}{\sqrt{20} }

= 2.25 ± 0.0335 = ( 2.2835 , 2.2165 )

7 0
3 years ago
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