answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
katovenus [111]
2 years ago
10

Sergio has ppp paintings in his art collection. He and other local painting collectors agreed to donate a total of 484848 painti

ngs to the local museum. Each of the 121212 collectors will donate the same number of paintings. How many paintings will Sergio have in his art collection after his donation?
Mathematics
2 answers:
Crazy boy [7]2 years ago
8 0

Answer:

484848

121212

±________

606,606

N76 [4]2 years ago
4 0

Answer:

p-4

Step-by-step explanation:

KHANACDEMY

You might be interested in
Salmon often jump waterfalls to reach their breeding grounds. One salmon starts 2.00m from a waterfall that is 0.55m tall and ju
Law Incorporation [45]

Answer: 6.2 m/s

Explanation:

1) This is a projectile motion (parabolic)

2) Velocity:

i) initial velocity = V₀

ii) Horizontal component:

V₀x = V₀ cos α

The horizontal velocity is constant, so Vx = V₀x

ii) Vertical component:

V₀y = V₀ sin α

The vertical component is linear with acceleration = g ≈ 9.8 m/s²

Vy = V₀y - gt = V₀ sin α - gt

3) Displacement equations

i) Horizontal displacment:

x = V₀ cosα t

ii) Vertical displacement:

y = V₀ sin α t - g t² / 2

y ≈ V₀ sin α t - 4.9 t²

4) Solution

i) x = V₀ cosα t = V₀ cos(32°) t = 2.00 m ← salmon starts 2.00m from a waterfall

⇒ V₀ = 2 / [cos(32°) t ]

ii) y = V₀ sin α t - 4.9 t² = V₀ sin(32°) t - 4.9 t²

iii) Replace V₀ with 2 / [cos(32°) t ]

y = sin(32°) × 2 / [cos(32°) t ] × t - 4.9t² = 2 tan(32°) - 4.9t²

iv) Use jump's height (y = 0.55m) and solve

⇒ 0.55 = 2 tan(32°) - 4.9t²

t² = [2 tan(32°) - 0.55 ] / 4.9 = 0.143 s²

⇒ t = √ (0.143s²) = 0.38 s

v) Use V₀ = 2 / [cos(32°) t ] to find V₀

V₀ = 2 / [cos(32°) (0.38) ] = 6.2 m/s

8 0
1 year ago
Read 2 more answers
A human body while sleeping generates about 300 BTUs of body heat per hour. If two people are sleeping in a bedroom that is 15 f
Katarina [22]
Given:
one person can produce:
E = <span>300 BTUs of body heat per hour
dimensions of the bedroom is:
V = </span><span>15 ft × 12 ft × 10 ft

required: is the energy per volume if 2 persons sleeps in 7 hours
let T be the total energy produce per volume

T = (</span><span>300 BTU per hour per person) ( 7 hours) ( 2 person) / ( </span> <span>15 ft × 12 ft × 10 ft)

T = 2.3 BTU / ft^3</span>
4 0
1 year ago
To make a profit, a company’s revenue must be greater than its operating costs. The company’s revenue is modeled by the expressi
myrzilka [38]
Revenue = 7.5x - 100
Operation Costs = 5.8x + 79.86

To break even, operation cost = Revenue
⇒ 7.5x - 100 = 5.8x + 79.86
7.5x = 5.8x + 179.86 (Add 100 to both sides)

7.5x - 5.8x = 179.86
1.7x = 179.86
x = 105.8

This implies that the company will need to sell at least 106 items to make a profit.

The inequality that will determine the number of items at need to be sold to make a profit is x ≥ 106

The solution to the inequality is as follows

Revenue = 7.5x - 100
if x =106
Revenue = 7.5(106) - 100
Revenue = 695

Operational Cost = 5.8x + 79.86
if x = 106
Operational Cost = 5.8(106) + 79.86
Operational Cost = 694.66

Profit ≥ (695 - 694.66)
Profit ≥ 0.34

The company must sell at least 106 items to make a profit.
7 0
2 years ago
Read 2 more answers
Jennifer has a bag of chips that contains 2 red chips and 1 black chip. If she also has a fair die, what is the probability that
fredd [130]
<span> the probability that she rolls an odd number AND and pulls a red chip

so it is = Prob(odd no) * Prob(red chip)

Prob(odd no) for a fair die = 1/2

Prob(red chip) = red chip / total chip = 2/(2+1) = 2/3

so the ans is 1/2 * 2/3 = 1/3

</span>
7 0
2 years ago
Read 2 more answers
An internet service provider is implementing a new program based on the number of connected devices in each household. Currently
erica [24]

The current rate is simply equal to $175 per month, let us call this as rate A:

A = 175

 

The new rate is $94 plus $4.50 per devices, let us call this as rate B:

B = 94 + 4.50 x

where x is the number of devices connected to the network

 

The inequality equation for us to find x which the new plan is less than current plan is:

94 + 4.50 x < 175

 

Solving for x:

4.50 x < 81

x < 18

So the number of devices must be less than 18.

 

 

- From the graph, we can actually see that the new rate intersects the current rate at number of devices equal to 18. So it should really be below 18 devices.

7 0
1 year ago
Read 2 more answers
Other questions:
  • 1.
    9·2 answers
  • Eduardo's definition of parallel lines is two lines that never meet. Is he correct? In two or more complete sentences, explain w
    12·2 answers
  • Steven Kellogg, a jet airplane mechanic, works at an hourly rate of
    13·1 answer
  • Convert to a percent 4.44 3/5
    6·1 answer
  • SunDrop Candies Inc claims that their 3 ounce bag of candies contains over 90 pieces of candy.
    6·1 answer
  • A fly trapped inside a cubical box with side length 1 meter decides to relieve its boredom by visiting each corner of the box. I
    9·1 answer
  • What is the solution to the equation StartFraction 1 Over h minus 5 EndFraction + StartFraction 2 Over h + 5 EndFraction = Start
    8·2 answers
  • A child has a bottle full of pennies, nickels,dimes and quarters. There are twice as many quarters as pennies, four times as man
    11·1 answer
  • Expand the expression: 1/3(12d + e)
    5·1 answer
  • A calculator was used to perform a linear regression on the values in the table. The results are shown to the right of the table
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!