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Karo-lina-s [1.5K]
3 years ago
5

I will give brainiest to whoever answers correctly !!

Mathematics
1 answer:
KonstantinChe [14]3 years ago
4 0

Answer:

The number of units sold increased by \mathbf{11.2\%}

Step-by-step explanation:

Vacuum dealer sold units in 2011 = 420

Vacuum dealer sold units in 2012 = 467

We need to find percent increase or decrease

Since, In 2012 units sold are greater than 2011, so there will be percent increase.

The formula used is: Percent\:Increase=\frac{New\:Value-Original\:Value}{Original\:Value}\times 100

We have New Value (Units sold in 2012) = 467

Original Value (Units sold in 2011) = 420

Percent increase is:

Percent\:Increase=\frac{New\:Value-Original\:Value}{Original\:Value}\times 100\\Percent\:Increase=\frac{467-420}{420}\times 100\\Percent\:Increase=\frac{47}{420}\times 100\\Percent\:Increase=11.2\%

So, The number of units sold increased by \mathbf{11.2\%}

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Mr. De Vera bought half a dozen eggs for Php 31.50. How much<br>did each egg cost?​
steposvetlana [31]

Answer:

$5.25

Step-by-step explanation:

a half dozen is 6

31.50 ÷ 6 = 5.25 per egg.

those are some expensive eggs!!

7 0
3 years ago
Angela and Michelle shared some money in the ratio 4: 9 then Angela gave Daniel half her share.Michelle gave Daniel a third of h
SVEN [57.7K]

Using a system of equations, it is found that £52 was originally shared.

<h3>What is a system of equations?</h3>

A system of equations is when two or more variables are related, and equations are built to find the values of each variable.

In this problem, the variables are given as follows:

  • Variable x: Angela's share.
  • Variable y: Michelle's share.
  • Variable z: Daniel's share.

Angela and Michelle shared some money in the ratio 4: 9, hence, considering t as the total:

  • x = \frac{4t}{13}.
  • y = \frac{9t}{13}

Angela gave Daniel half her share.Michelle gave Daniel a third of her share. Daniel was given a total of £20, hence:

\frac{x}{2} + \frac{y}{3} = 20

\frac{4t}{26} + \frac{9t}{39} = 20

\frac{12t + 18t}{78} = 20

30t = 20 x 78

t = 20 x 78/30

t = £52.

More can be learned about a system of equations at brainly.com/question/24342899

#SPJ1

5 0
2 years ago
Can someone please clearly explain how to correctly work out Q6? Much appreciated
steposvetlana [31]

s =1/2(u+v)t

u = 16, v=16, t=90

s = 1/2(16+16)90

s = 1/2(36)90

s = 16*90

s = 1440

4 0
3 years ago
Please could someone help
Helga [31]
1. 4x
2. (x+7)(x-7)
3. 25
4. 64
5. 4
6. 15
7. x^2-8x+16
8. 15.4x10^-3
9.5g/cm^3
10. (y/a)/b


5 0
3 years ago
Let x = -4 ,Y = 6 and z = -1
Elena L [17]
(-4)2-2(-4*6)+(6)2

The answer is f=52
4 0
3 years ago
Read 2 more answers
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