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Ad libitum [116K]
3 years ago
11

Naomi and Claire are painting a mural. Naomi paints 2 square feet per hour and has already painted 16.5 square feet. Claire pain

ts 4 square feet per hour and has already painted 7.5 square feet. How many more hours will it take for Naomi and Claire to paint an equal total number of square feet?
Mathematics
1 answer:
HACTEHA [7]3 years ago
4 0
It will never happen because you are increasing a even number with a even number so it will always be even and a odd with a even will make odd every time
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The actual length of side t is 0.045 cm. Use the scale drawing to find the actual side length of w. A) 0.06 cm B) 0.075 cm C) 0.
Tems11 [23]

Answer: The answer is B 0.075 cm


Step-by-step explanation:

Since the drawings is a scale of the original you must use a proportion to solve the desired side. 0.045/.9=w/1.5;w=0.075.

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3 years ago
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Which sentence demonstrates the multiplicative identity?
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C
Explanation
I took the test.
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What goes up and down without moving?<br> Whoever answers first gets brainliest.
pav-90 [236]

Answer: temperature and weight

Step-by-step explanation: Temperature can increase or decrease/can go up and down without moving. The same goes with weight, it can go up or down without moving.

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In ΔRST, r = 40 cm, s = 88 cm and t=70 cm. Find the measure of ∠S to the nearest degree.
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Step-by-step explanation:

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2 years ago
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A marketing research company desires to know the mean consumption of meat per week among males over age 50. A sample of 217 male
guajiro [1.7K]

Answer: (3.3, 3.5)

Step-by-step explanation:

The formula to calculate the confidence interval is given by :-

\overline{x}\pm z^* \dfrac{\sigma}{\sqrt{n}}

, where \overline{x} = sample mean.

z* = critical value.

\sigma = Population standard deviation.

n= Sample size.

As per given , we have

\overline{x}=3.4

\sigma=0.5

n= 217

By using z-table , the critical value for 95% confidence level : z* = 1.96

Now, the  95% confidence interval for the mean consumption of meat among males over age 50 will be :

3.4\pm (1.96) \dfrac{0.5}{\sqrt{217}}

3.4\pm (1.96) \dfrac{0.5}{14.73091986}

3.4\pm (1.96) 0.0339422

3.4\pm 0.066526712\approx3.4\pm 0.1=(3.4-0.1,\ 3.4+0.1)=(3.3,\ 3.5)

Hence, the 95% confidence interval for the mean consumption of meat among males over age 50 =(3.3, 3.5)

4 0
3 years ago
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