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3 years ago

How do you write 50% as a decimal?

Mathematics

2 answers:

Marina86 [1]3 years ago

7 0

There is an understood decimal behind the 0. move the decimal two places to the left. making it .50. <span />

Sergeu [11.5K]3 years ago

5 0

.50 move the decimal to places to the left

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Heron wants to buy a video game. The price is regularly priced at 55 dollars. The store has a discount of 20% off and a sales ta

seropon [69]

The amount paid by Heron for the video game is $46.64.

Step-by-step explanation:

Here, the marked price of the video game = $55

The discount percentage on the video game = 20%

Calculating 20% of the $55, we get:

$\frac{20}{100} \times 55 = 11$

So, the discount offered on the video game = $11

Selling Price = Marked Price - Discount

=$55 - $11 = $44

Now, the tax percentage on the video game = 6%

Calculating 6% of the $44, we get:

$\frac{6}{100} \times 44 =2.64$

So, the tax on the video game = $2.64

New Selling Price = Selling Price + Tax

=$44 + $2.64 = $46.64

So, the amount paid by Heron for the video game is $46.64.

3 0

3 years ago

How do you find a 180 degree angle?

Tom [10]

180° angle is a straight line

hope it helps....!!!

5 0

2 years ago

Convert the fraction into a decimal number.<br><br> 1.14286...<br> 0.875<br> 0.8...

Alex17521 [72]

Answer:

do u mean decimal to a fraction

6 0

3 years ago

Select the correct answer!<br> Help asap thanks

tester [92]

The area of the shaded region is 3.125π - 6. The correct option is E. 3.125π - 6

<h3>Calculating area </h3>

From the question, we are to determine the area of the shaded region

The area of the shaded region = Area of the semicircle - Area of the triangle

First, we will determine the diameter, d, of the semicircle

d² = 3² + 4² (<em>Pythagorean theorem</em>)

d² = 9 + 16

d² = 25

d = √25

d = 5

∴ Diameter of the semicircle is 5

Thus,

Radius, r = 5/2 = 2.5

Now,

Area of the shaded region = 1/2(π×2.5²) - 1/2(3×4)

Area of the shaded region = 1/2(π×6.25) - 1/2(12)

Area of the shaded region = 3.125π - 6

Hence, the area of the shaded region is 3.125π - 6. The correct option is E. 3.125π - 6

Learn more on Calculating area here: brainly.com/question/14989383

#SPJ1

7 0

1 year ago

According to the Center for Disease Control and Prevention (CDC), the mean life expectancy in 2015 for non‑Hispanic white males

wolverine [178]

Answer:

The 95% confidence interval for the mean life expectancy of non-hispanic white males is (73.3 years, 79.3 years).

Step-by-step explanation:

This is the 95% confidence interval for the mean life expectancy of non-hispanic white males.

Our sample size is 100

The first step to solve this problem is finding our degrees of freedom, that is, the sample size subtracted by 1. So

$df = 100-1 = 99$

Then, we need to subtract one by the confidence level $\alpha$ and divide by 2. So:

$\frac{1-0.95}{2} = \frac{0.05}{2} = 0.025$

Now, we need our answers from both steps above to find a value T in the t-distribution table. So, with 99 and 0.025 in the two-sided t-distribution table, we have $T = 1.984$

Now, we find the standard deviation of the sample. This is the division of the standard deviation by the square root of the sample size. So

$s = \frac{15}{\sqrt{100}} = 1.5$

Now, we multiply T and s

$M = T*s = 1.984*1.5 = 2.976$

Then

The lower end of the confidence interval is the mean subtracted by M. So:

$L = 76.3 - 2.976 = 73.3$

The upper end of the confidence interval is the mean added to M. So:

$L = 76.3 + 2.976 = 79.3$

The 95% confidence interval for the mean life expectancy of non-hispanic white males is (73.3 years, 79.3 years).

5 0

3 years ago