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tatyana61 [14]
1 year ago
8

Pentru cei 22 de elevi din echipa de fotbal a școlii au fost cumpărate tricouri, unele mărimea M și altele mărimea S. Un tricou

mărimea M costă 72 de lei, iar cel mărimea S costă 54 de lei. Dacă s-a plătit în total suma de 1458 de lei, atunci s-au cumpărat
tricouri mărimea M și
tricouri mărimea S.
Mathematics
1 answer:
Gwar [14]1 year ago
6 0

Answer:

Hola senor

Step-by-step explanation:

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of the coins in Simone's collection 13/25 or quarters of these quarters 2/3 are state quarters what fraction of Simone's coins a
Rzqust [24]
I have no idea. I'm sorry  I havne'nt work on this stuff since 6th grade..
3 0
2 years ago
At Pizza Perfect, Ron and Harold make pizza crusts. When they work separately Ron finishes the job of making 100 crusts 1.2 hour
Arada [10]

Answer:  Ron take approximately 4.2 hours to make 100 crusts alone.

Step-by-step explanation:

Since we have given that

Number of hours taken by Ron before Harold = 1.2 hours

Number of hours taken by Ron and Harold together = 1.8 hours

We need to find the number of hours taken by Ron alone i.e. 'x'.

Let number of hours taken by Harold alone be '1.2-x'.

Let work done by Ron alone  = \dfrac{1}{x}

Work done by Harold = \dfrac{1}{x-1.2}

According to question, we get that

\dfrac{1}{x}+\dfrac{1}{x-1.2}=\dfrac{1}{1.8}\\\\\dfrac{x-1.2+x}{x(x-1.2)}=\dfrac{1}{1.8}\\\\\dfrac{2x-1.2}{x^2-1.2x}=\dfrac{1}{1.8}\\\\3.6x-2.16=x^2-1.2x\\\\x^2-1.2x-3.6x+2.16=0\\\\x^2-4.8x+2.16=0\\\\x=0.5,4.2

x-1.2 does not satisfied with x = 0.5 so, x = 4.2

Hence, Ron take approximately 4.2 hours to make 100 crusts alone.

7 0
2 years ago
A line contains (34,12) and (32,48) what is the slope of the line in simplified form? HELP ASAPl
Tcecarenko [31]

Answer:

m=-18

Step-by-step explanation:

1. The line contains the points (34,12) and (32,48). Then, you need to use the slope formula, which is:

m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}

2. When you substitute values into the formula, you obtain:

y_{2}=48\\y_{1}=12\\x_{2}=32\\x_{1}=34

m=\frac{48-12}{32-34}\\m=\frac{36}{-2}\\m=-18


4 0
2 years ago
A water wheel has a radius of 4 feet and the bottom of the wheel is 1 foot from the ground. One plank is painted white and it st
Inessa [10]

Answer:

The height of the plank after the π/3 rotation motion is 8.464 ft

Step-by-step explanation:

The radius of the wheel = 4 ft

The elevation of the bottom of the wheel from the bottom = 1 foot

The angle to which the wheel is rolled = π/3 radians

The height of a rotating wheel is given by the following relation

f(t) = A·sin(B·t + C) + D

Where;

D = Mid line =  4 + 1 = 5 feet

B·t = π/3

C = 0

A = The amplitude = 4

Which gives;

f(t) = 4×sin(π/3) + 5 = 8.464 ft

The height of the plank after the π/3 rotation motion = 8.464 ft.

8 0
2 years ago
Read 2 more answers
What is the range of the function y = e Superscript 4 x
Alborosie

Answer:

A. Less than zero

Step-by-step explanation:

So If you graph the function,  you'll see that it never actually crosses the y axis into the third or fourth quadrant, the quadrants where all y values become negative.

The answer A is also correct on Edge

Have a great day dude

3 0
2 years ago
Read 2 more answers
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