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bogdanovich [222]
3 years ago
6

Ebony earns 2000 a month if she spends 450 a month

Mathematics
1 answer:
Brrunno [24]3 years ago
8 0

Answer:::::::::::

22.5%

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Mathew goes to the movies over the weekend
Rufina [12.5K]

Answer:

23.125$

Step-by-step explanation:

you have to divide the total amount of money by the total amount of people 92.50$/4=23.125$

3 0
3 years ago
Read 2 more answers
If the diameter is 4 feet and<br> 18 inches, how long is the radius?
wel

Answer:

2 feet 9 inches

Step-by-step explanation:

Radius = Diameter/2

3 0
3 years ago
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One variable examined is the survival rate 10 years after tagging. The scientists observed that 10 of the 50 metal tagged pengui
Oksana_A [137]

Answer:  90% confidence interval would be (-0.2483,-0.0717)

Step-by-step explanation:

Since we have given that

n₁ = 50

Number of metal tagged penguins survived = 10

So, p_m=\dfrac{10}{50}=0.2

n₂ = 50

Number of electronic tagged penguins = 18

So, p_e=\dfrac{18}{50}=0.36

So, at 90% confidence interval, z = 1.28

So, interval would be

(p_m-p_e)\pm z\sqrt{\dfrac{p_m(1-p_m)}{n}+\dfrac{p_e(1-p_e)}{n}}\\\\=(0.2-0.36)\pm 1.28\sqrt{\dfrac{0.2\times 0.8}{50}+\dfrac{0.36\times 0.64}{50}}\\\\=-0.16\pm 0.0883\\\\=(-0.16-0.0883,-0.16+0.0883)\\\\=(-0.2483,-0.0717)

Hence, 90% confidence interval would be

(-0.2483,-0.0717)

6 0
3 years ago
Can anybody answer this if you do I will give you brainliest, 5stars, and a thank you
Tema [17]

Answer:

nope cant even think not meh

Step-by-step explanation:

sorry

8 0
3 years ago
17. You have $850 to buy new carpet for the game room. The dimensions of the game
gregori [183]

Answer:

Cost of new carpet per square foot should be less than or equal to $3.54.

Step-by-step explanation:

Given:

Money have to buy carpet = \$850

dimension of game room is 20 feet by 12 feet

So we can say length l = 20 feet

and width w = 12 feet

let x be the cost per square foot for new carpet.

Assuming game room to be rectangular in shape we will find the area of it.

Area of room = length \ l \times width \ w = 20 ft\times 12 ft = 240 \ ft^2

Total area \times cost per square feet ≤ Total money we have

Hence,

240 \ ft^2 \times x \leq \$850\\\\x\leq \frac{\$850}{240 \ ft^2}\\\\x\leq \$3.54 \ per \ ft^2

Hence Cost of new carpet per square foot should be less than or equal to $3.54.

3 0
3 years ago
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