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Fantom [35]
3 years ago
11

What is 100 divided by 80

Mathematics
2 answers:
Molodets [167]3 years ago
3 0
10/8 or 5/4 or 1 1/4 or 1.25 or 125 percent.
Anton [14]3 years ago
3 0
The answer to 100 divided by 80 is 1.25.
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The sanchez family goes out for dinner, and the price of the meals is $60. The sales tax on the Meals is 7 percent, and they als
dem82 [27]

Answer:

73.3

Step-by-step explanation:

7%=7÷100=0.07 ×60=4.2

15%=15÷100=0.15×60=9

add you answers to 60 and to should get 73.2

5 0
3 years ago
Michelle and her father want to make a triangular sail for their boat. The height of the sail will be 24 ft., and the base will
Lemur [1.5K]

Answer:

The area of the triangular sail is 216 ft²

Step-by-step explanation:

Since the sail is triangular, we solve the area using the area of a triangle

Area of triangle = 1/2 of base × height

base is 18 and height is 24

Area = 1/2 × 18 × 24

= 9×24

= 216 ft²

5 0
3 years ago
If we wanted to create a new 90% confidence interval from a different sample for the proportion of those with a two on one date
slava [35]

Answer: 271

Step-by-step explanation:

The formula we use to find the sample size is given by :-

n=p(1-p)(\dfrac{z_{\alpha/2}}{E})^2

, where z_{\alpha/2} is the two-tailed z-value for significance level of (\alpha)

p = prior estimation of the proportion

E = Margin of error.

If prior estimation of the proportion is unknown, then we take p= 0.5 , the formula becomes

n=0.5(1-0.5)(\dfrac{z_{\alpha/2}}{E})^2

n=0.25(\dfrac{z_{\alpha/2}}{E})^2

Given :   Margin of error : E= 0.05

Confidence level = 90%

Significance level \alpha=1-0.90=0.10

Using z-value table , Two-tailed z-value for significance level of 0.10

z_{\alpha/2}=1.645

Then, the required sample size would be :

n=0.25(\dfrac{1.645}{0.05})^2

Simplify,

n=270.6025\approx271

Hence, the required minimum sample size =271

3 0
3 years ago
2x+5y=02y=3x+17Find x and y
jonny [76]

x=(-83/17) y=(40/17)

5 0
2 years ago
Solve for g. g/20 ≤5
Nadusha1986 [10]

\frac{g}{20}≤5

Multiplying by 20 in all sides gives:

g≤(20×5)

Answer: g≤100



4 0
2 years ago
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