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photoshop1234 [79]
3 years ago
9

What is the answer for 3.7-4.2n-3n+8

Mathematics
1 answer:
Romashka-Z-Leto [24]3 years ago
4 0

The Answer:

11.7 - 7.2n

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How long does it take for 100 hens to lay 100 eggs if 5 hens are known to lay 5 eggs in 5 minutes?​
snow_lady [41]

Answer:

100 mins/ 1 hour 40 mins

Step-by-step explanation:

if 5 hens are known to lay 5 eggs then each hen lays 1 egg a minute

so multiply 1 by 100

and 100 time 1 equals 100

5 0
3 years ago
7. A boy on ice skates has a momentum of 200 kg m/s to the left at a velocity of 20
tankabanditka [31]

Answer: 10 m/s

Step-by-step explanation:

Given

Momentum of boy P=200\ kg.m/s

Mass of boy is m=20\ kg

Momentum is the product of mass and velocity

P=mv

Substitute value

\Rightarrow 200=20\times v\\\Rightarrow v=10\ m/s

Thus, the boy is moving with a velocity of 10 m/s

4 0
3 years ago
Brenna bought cupcakes for her sister's birthday party. 45 out of the 50 cupcakes had sprinkles on top. What percentage of the c
kogti [31]

Answer:

90 percent

Step-by-step explanation:

I'm pretty sure it is 90. I hated doing percentages. Every time we did a math test our teacher would give us back the paper and make us calculate the percentage ourselves.

4 0
3 years ago
Find G-1^(3) g(x)=2x+2 over 4
Natasha2012 [34]
G inverse ( g^-1 (x) ) = x-2 over 2. so, g^-1 (3) = 3-2 over 2 = 1/2
7 0
3 years ago
You are petitioning the city to hold a march for a 1 mile stretch of street. The street is 45 ft wide and each sidewalk is 5 ft
Mazyrski [523]

Answer:

The approximate number of people that could fit in the 1 mile stretch is 145,200 people

Step-by-step explanation:

The length of the street = 1 mile stretch

The width of the street = 45 ft

The depth of each sidewalk = 5 ft

1 mile = 5,280 ft

Therefore;

The area of the side walk on each side of the street = 5 × 5,280 = 26,400 ft²

The area of both side walks = 26,400×2 = 52,800 ft²

The area of the street = 45 × 5,280 = 237,600 ft²

The total area of the street = The area of the street + The area of both side walks = 237,600 ft² + 52,800 ft²

The total area of the street = 290,400 ft²

The area occupied by one person is at least 2 ft²/person

Therefore, the approximate number of people that could fit in the 1 mile stretch = (The total area of the street)/(The area occupied by one person)

The approximate number of people that could fit in the 1 mile stretch = 290,400 ft²/(2 ft²/person) = 145,200 people

The approximate number of people that could fit in the 1 mile stretch = 145,200 people.

4 0
3 years ago
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