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stiks02 [169]
3 years ago
6

Which of the following is another way to show the ratio 13 to 27?

Mathematics
1 answer:
Alisiya [41]3 years ago
7 0
Another ratio of 13:27 is to write it as a fraction. This is to mean;
\frac{13}{27}
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3. Jada has a coin jar containing n nickels and d dimes worth a total of $3.65. The
Ghella [55]

Answer:

C

Step-by-step explanation:

Here, we want to find an equation in the options which is same as the equation given in the question;

The equation we are testing against is;

0.05n + 0.1d = 3.65

What we can do here is divide through by 0.01

So we will have;

0.05n/0.01 + 0.1d/0.01 = 3.65/0.01

= 5n + 10d = 365

3 0
3 years ago
A student wants to survey the sophomore class of 200 students about whether the school should require uniforms. A
Fittoniya [83]

Answer: C

Step-by-step explanation:

<u>Given:</u>

Sample size (n) = 50

x = 12

\widehat{\mathbf{p}}=\frac{\mathbf{x}}{n}=\frac{12}{50}=0.24

Confidence level = 90%

α = 1 − 0.90 = 0.10

α/2 = 0.05

\text { Critical value }\left(z_{c}\right)=z_{\frac{\alpha}{2}}=z_{0.05}=1.6449

(from standard normal table)

90% Confidence interval is,

\begin{aligned}&\text { Confidence interval }=\widehat{\mathbf{p}} \pm z_{c} \times \sqrt{\frac{\hat{\mathbf{p}}(1-\hat{\mathbf{p}})}{n}} \\&\text { C. I }=0.24 \pm 1.6449 \times \sqrt{\frac{0.24(1-0.24)}{50}} \\&\text { C. I }=0.24 \pm 1.65 \times \sqrt{\frac{0.24(1-0.24)}{50}}\left\end{aligned}

Therefore, 90% confidence interval for the true proportion of sophomores who favour the adoption of uniforms is C

6 0
2 years ago
What is the slope of a line perpendicular to the line whose equation is x+y=−1. Fully reduce your answer.
Leona [35]
Make y = mx = b
y = -x - 1
Slope is -1
Perpendicular = opposite sign and reciprocal slope
1/1 = 1, slope would be 1
Solution: slope = 1
6 0
3 years ago
Find the volume of the triangular prism. The base of the triangle is 4cm and the height of the triangle is 6cm. The length of th
igomit [66]

Answer:

72 cm*3

Step-by-step explanation:

volume = base area x height = 4 x 6 x 3 = 72

4 0
3 years ago
-21=x-15 solve x <br> Please help
boyakko [2]

Answer:

x= -6

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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