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netineya [11]
3 years ago
13

8 1/4 - 6 1/2, what is the answer and work for this?

Mathematics
1 answer:
Colt1911 [192]3 years ago
4 0
Answer:
<span>=1<span> 3/4</span></span>Solution 1 by separating partsRewriting our equation with parts separated<span>=8+<span>1/4</span>−6−<span>1/2</span></span>Solving the whole number parts<span>8−6=2</span>Solving the fraction parts<span><span>1/4</span>−<span>1/2</span>=?</span>Find the LCD of 1/4 and 1/2 and rewrite to solve with the equivalent fractions.
LCD = 4
<span><span>1/4</span>−<span>2/4</span>=−<span>1/4</span></span>Combining the whole and fraction parts<span>2−<span>1/4</span>=1<span> 3/4</span></span>Solution by Formulas converting mixed numbers to fractions, our initial equation becomes,<span><span>33/4</span>−<span>13/2
</span></span>Applying the fractions formula for subtraction,<span>=<span><span>(33×2)−(13×4)</span><span>/4×2</span></span></span><span>=<span><span>66−52</span>/8</span></span><span>=<span>14/8</span></span>Simplifying 14/8, the answer is<span>=1 <span>3<span>/4</span></span></span>
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5×+9y, when x=8 and y =11
natima [27]

Answer:

139

Step-by-step explanation:

(5*8)+(9*11)

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7 0
3 years ago
Calculate the account balance for $800 left on deposit for 255 days earning 5.25% compounded daily.
Svetradugi [14.3K]
The value would be 829.89.

The formula we use is 

A=p(1+\frac{r}{n})^{nt},

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We will use 800 for p; 5.25/100 = 0.0525 for r; 365 for n; and (255/365) for t (since it is not a full year):
A=800(1+\frac{0.0525}{365})^{\frac{255}{365}\times365}&#10;\\&#10;\\=800(1+\frac{0.0525}{365})^{255}=829.89
3 0
3 years ago
Which equation is true given w=7
DENIUS [597]
Where is the equation?
6 0
3 years ago
Suppose that, in 1995, the weight of 16-year old males in the United States was normally distributed with a mean of 143 lbs and
seropon [69]

Answer:

Step-by-step explanation:

The null hypothesis is:

H0: μ(1995)=μ(2019)

The alternative hypothesis is:

H1: μ(1995)<μ(2019)

Because Roger wants to know if mean weight of 16-old males in 2019 is more than the mean weight of 16-old males in 1995 the test only uses one tail of the z-distribution.  It is not a  two-sided test because in that case the alternative hypothesis would be:  μ(1995)≠μ(2019).

To know the p-value, we use the z-statistic, in this case 1.89 and the significance level. Because the problem does not specify it, we will search for the p-value at a 5% significance level and at a 1%.

For a z of 1.89 and 5% significance level, the p-value is: 0.9744

For a z of 1.89 and 1% significance level, the p-value is: 0.9719

4 0
3 years ago
1/5 of a box of erasers and youneed to share with 3 people including yourself what fraction of the box would each person get
CaHeK987 [17]
1 1. 1
— x. — = —
4. 5. 20

1/20 is the answer
8 0
3 years ago
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