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ella [17]
3 years ago
11

(1) Mr. Rawlins took a quiz with 12 problems and he got 10 of them right. What percentage of the quiz did he get correct? *

Mathematics
2 answers:
elena-s [515]3 years ago
5 0

Answer:

83.33%

Step-by-step explanation:

s344n2d4d5 [400]3 years ago
5 0

Answer:

83.33%

Step-by-step explanation:

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Laurence, the stadium manager, spends $22,000 on a broadcast TV ad, $30,000 on a cable TV ad, and $6,000 on a radio ad. What per
Vesnalui [34]

38 % of amount is spent on broadcast TV advertising

<em><u>Solution:</u></em>

Given that,

Amount spend on broadcast TV ad = $ 22, 000

Amount spend on cable TV ad = $ 30, 000

Amount spend on radio ad = $ 6000

To find: percentage of broadcast TV advertising

Total amount = $ 22, 000 + $ 30, 000 + $ 6000

Total amount = $ 58000

percentage of broadcast TV advertising = \frac{\text{ amount spend on broadcast tv}}{\text{ total amount}} \times 100

\rightarrow \frac{22000}{58000} \times 100\\\\\rightarrow 0.3793 \times 100 = 37.93 \approx 38

Thus 38 % of amount is spent on broadcast TV advertising

7 0
3 years ago
Examples from your surroundings where we use negative rational number​
kotegsom [21]

Answer:

U can see it in your thermometer

Step-by-step explanation:

8 0
3 years ago
I need help finding
Varvara68 [4.7K]

Answer:

the correct answer will be b/c

4 0
3 years ago
Read 2 more answers
The diameter of a quarter is 2.5 cm. What is it’s circumference?
anastassius [24]

Answer:

7.85 cm

Step-by-step explanation:

The circumference of a circle can be found using the following formula.

c=\pi d

The diameter is 2.5 centimeters. Therefore, we can substitute 2.5 cm in for d.

c=\pi *2.5 cm

Now, find the circumference.

- In terms of pi:

c=\pi *2.5 cm

c= (2.5)\pi  cm

c= 2.5\pi  cm

-Using 3.14 as pi

c=\pi *2.5 cm

c=3.14 *2.5 cm

c=7.85 cm

-Using 3.14159... as pi

c=\pi *2.5 cm

c=7.85398163 cm

7 0
3 years ago
To help consumers assess the risks they are taking, the Food and Drug Administration (FDA) publishes the amount of nicotine foun
QveST [7]

Answer:

We conclude that  the mean nicotine content is less than 31.7 milligrams for this brand of cigarette.

Step-by-step explanation:

We are given the following in the question:  

Population mean, μ = 31.7 milligrams

Sample mean, \bar{x} = 28.5 milligrams

Sample size, n = 9

Alpha, α = 0.05

Sample standard deviation, s =  2.8 milligrams

First, we design the null and the alternate hypothesis

H_{0}: \mu = 31.7\text{ milligrams}\\H_A: \mu < 31.7\text{ milligrams}

We use One-tailed t test to perform this hypothesis.

Formula:

t_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{s}{\sqrt{n}} }

Putting all the values, we have

t_{stat} = \displaystyle\frac{28.5 - 31.7}{\frac{2.8}{\sqrt{9}} } = -3.429

Now, t_{critical} \text{ at 0.05 level of significance, 8 degree of freedom } = -1.860

Since,                  

t_{stat} < t_{critical}

We fail to accept the null hypothesis and accept the alternate hypothesis. We conclude that  the mean nicotine content is less than 31.7 milligrams for this brand of cigarette.

3 0
3 years ago
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