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melamori03 [73]
2 years ago
14

1 dozen of eggs for Rs 84 or 18 eggs for Rs 117 . Which is the best buy in the following cases. full explanation

Mathematics
1 answer:
elixir [45]2 years ago
8 0

Answer:

18 eggs for Rs 117

Step-by-step explanation:

Divide 84 by 12 (Dozen = 12) and you get 7 which means every egg is for Rs. 7

Divide 117 by 18 and you get 1.39 which means every egg is for Rs. 1.39

You might be interested in
One fifth of a number, decreased by 17 is 41 in algebraic expression
asambeis [7]

The correct algebraic expression is X ÷ 5 - 17 = 41

<h3>What is an algebraic expression?</h3>

An algebraic expression is a term that refers to a way of representing mathematical operations in which letters and numbers are combined, related to signs of the operations such as:

  • Addition (+)
  • Subtraction (-)
  • Multiplication (×)
  • Division (÷)
  • Empowerment (x^{2})

According to the above, we can infer that the correct algebraic expression would be:

  • X ÷ 5 - 17 = 41

In this algebraic expression the letter X represents a number that we do not know and we must find.

Learn more about algebraics in: brainly.com/question/953809

8 0
2 years ago
Read 2 more answers
a water balloon is tossed into the air with an upward velocity of 25 ft/s its height h(t) in ft after t seconds is given by the
Montano1993 [528]
When the height is 0 that is when it hits the ground
solve
0=-16t²+25x+3
cant factor so use quadratic formula

for
0=ax²+bx+c
x=\frac{-b+/-\sqrt{b^2-4ac}}{2a}

so for
0=-16t²+25t+3
a=-16
b=25
c=3
so

x=\frac{-25+/-\sqrt{25^2-4(-16)(3)}}{2(-16)}
x=\frac{-25+/-\frac{625+192}}{-32}
x=\frac{-25+/-\frac{817}}{-32}
it has to be a positive time

so it will hit the ground after \frac{25+\sqrt{817}}{32} seconds
4 0
3 years ago
HELP PLEASEEEE it’s due in 10 minutes
lana [24]

Answer:

24.187

Step-by-step explanation:

7 0
3 years ago
Given: AD || BC and AD ≅ BC<br><br>Prove: AB || CD
Nana76 [90]

Answer:

i think E TO E

Step-by-step explanation:

6 0
2 years ago
An object is propelled upward from the top of a 300 foot building. The path that the object takes as it falls to the ground can
serg [7]

Answer:

As per the statement:

The path that the object takes as it falls to the ground can be modeled by:

h =-16t^2 + 80t + 300

where

h is the height of the objects and

t is the time (in seconds)

At t = 0 , h = 300 ft

When the objects hit the ground, h = 0

then;

-16t^2+80t+300=0

For a quadratic equation: ax^2+bx+c=0         ......[1]

the solution for the equation is given by:

x = \frac{-b\pm \sqrt{b^2-4ac}}{2a}

On comparing the given equation with [1] we have;  

a = -16 ,b = 80 and c = 300

then;

t= \frac{-80\pm \sqrt{(80)^2-4(-16)(300)}}{2(-16)}

t= \frac{-80\pm \sqrt{6400+19200}}{-32}

t= \frac{-80\pm \sqrt{25600}}{-32}  

Simplify:

t = -\frac{5}{2} = -2.5 sec and t = \frac{15}{2} = 7.5 sec

Time can't be in negative;

therefore, the time it took the object to hit the ground is 7.5 sec

8 0
3 years ago
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