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yawa3891 [41]
3 years ago
7

Hugo withdrew some money from his bank account. He spent one third of the money for gasoline. Then he spent half of what was lef

t for a haircut. He bought lunch for $6.55. When he got home, he had $13.45 left.
How much did he withdraw from the bank?

a. $60
c. $70
b. $50
d. $40
Mathematics
2 answers:
AfilCa [17]3 years ago
7 0

Answer:

fmgrjn

Step-by-step explanation:

Butoxors [25]3 years ago
4 0
C.$ 70 do the butterfly method
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Customers arrive at a movie theater at the advertised movie time only to find that they have to sit through several previews and
sergij07 [2.7K]

Answer:

a) sample size is 40

Step-by-step explanation:

(a)

\sigma=4 minutes

Margin of error, E is 75 seconds E=75/60= 1.25 minutes.

The level of significance \alpha= 0.05 for 95% level of significance

For 95% confidence interval z_{\frac{\alpha}{2}}=1.96 from standard deviation table

Sample size required, n

n=\left (\frac{z_{\frac{\alpha}{2}}\cdot \sigma}{E} \right )^{2}=\left (\frac{1.96\cdot4}{75/60} \right )^{2}=39.337984

Rounding off, n=40

Sample size =40

Keywords:

95% confidence, sample size, Wall Street Journal

3 0
3 years ago
Worth 2 marks and I need it urgently pls
melisa1 [442]
4c6d3 x 3c4d

4 x 3=12
12c
you add the powers so 6+4=10
12c10
d3 x d=d3
12c10d3


that is the answer i think

4 0
3 years ago
Antonio is making a mini waffle cones. Each waffle cone is 3 inches high and has a radius of 3/4 inches. What is the volume of t
castortr0y [4]
I got 7.065 for my answer.
3 0
3 years ago
25. Several functions represent different savings account plans. Which functions are linear?
Mice21 [21]

Answer:

b, c, d

Step-by-step explanation:

y=kx+b

or

y=kx

so y=5,25x-right

y=0,5x-right

y=2,5x+7-right

8 0
3 years ago
What is the domain of f?
zmey [24]

Answer:

I hope C

Step-by-step explanation:

if I'm wrong please let me know

8 0
3 years ago
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