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Digiron [165]
4 years ago
15

In a sale, normal prices are reduced by 12%

Mathematics
2 answers:
e-lub [12.9K]4 years ago
8 0
12\%-reduce\\
100\%-12\%=88\%-reduced\ price\\
132.88-88\%\\
x\ \ \ \ \ \ \ -100\%\\\\
x=151
gulaghasi [49]4 years ago
3 0
132.88/88=1.51
1.51*100=151
the normal price is £151
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a bird of species a when diving can travel four times as fast as a bird of species b top speed if the total speeds of these two
weeeeeb [17]
X will be the speed of species b and 4x will be the speed of species a:

x + 4x = 180
5x = 180
x = 180 / 5
x = 36 m/h

If species b has a speed of 36 m/h, the speed of species a is 4 times that:

4 x 36 = 144 m/h.


Answer:

\boxed {\bf A~=~36~m/h~and~B~=~144~m/h}


Hope it helped,

Happy homework/ study/ exam!
4 0
3 years ago
Can someone give me the right answer for this please? I'm so confused
photoshop1234 [79]

Answer:

JK = 18

Step-by-step explanation:

LK = x - 1

KJ = x + 11

LJ = LK + KJ = x - 1 + x + 11

-> LJ = 2x + 10

LM = 12

By tangent secant segment theorem:

LK \times LJ = JM^2 \\  \\  \implies \: (x - 1)(2x + 10) =  {(12)}^{2} \\  \\  \implies \: x (2x + 10) - 1(2x + 10) =  144\\  \\  \implies \: 2x^{2}  + 10x - 2x  - 10 -  144 = 0\\  \\  \implies \: 2x^{2}  + 8x  -  154 = 0\\  \\  \implies \: 2(x^{2}  + 4x  -  77) = 0\\  \\  \implies \: x^{2}  + 4x  -  77 = 0\\  \\  \implies \: x^{2}  + 11x   - 7x-  77 = 0\\  \\  \implies \: x(x  + 11)   - 7(x + 11) = 0\\  \\  \implies \: (x  + 11)  (x - 7) = 0 \\  \\ \implies \: (x  + 11) = 0 \:  \: or \:  \:   (x - 7) = 0 \\  \\ \implies \: x   =  -  11 \:  \: or \:  \:   x  = 7 \\  \\ x \: can \: not \: be \: negative \\  \implies \: x \neq \:  - 11 \\  \\  \implies \: x = 7 \\  \\  \implies \: JK = x + 11 = 7 + 11 \\  \\ \implies \:  \huge \: { \orange{JK =18}}

Hope it helps you in your learning process.

Have a great day ahead.

4 0
2 years ago
disributivity of multiplication over addition for rational numbers solve : -3/4 , 2/3 and -5/6 = 1/8 ? how ?​
Nezavi [6.7K]

The distributive property of multiplication over addition for rational numbers is (a) -3/4 × {2/3 + (-5/6)} = [-3/4 × 2/3] + [-3/4 × (-5/6)]

<h3>Complete question</h3>

Which of the following is an example of distributive property of multiplication over addition for rational numbers

(a) -3/4 × {2/3 + (-5/6)} = [-3/4 × 2/3] + [-3/4 × (-5/6)]

(b) -3/4 × {2/3 + (-5/6)} = [3/4 × 2/3] - (-5/6)

(c) -3/4 × {2/3 + (-5/6)} = 2/3 + (-3/4) × -5/6

(d) -3/4 × {2/3 + (-5/6)} = {2/3 + (-5/6)} - 3/4

<h3>How to determine the correct distributive property?</h3>

The distributive property of multiplication states that:

a * (b + c) = (a * b) + (a * c)

From the given question, we have:

-3/4 × {2/3 + (-5/6)}

This means that:

a = -3/4

b = 2/3

c = -5/6

Recall that a * (b + c) = (a * b) + (a * c)

So, we have:

-3/4 × {2/3 + (-5/6)} = [-3/4 × 2/3] + [-3/4 × (-5/6)]

Hence, the distributive property of multiplication over addition for rational numbers is (a) -3/4 × {2/3 + (-5/6)} = [-3/4 × 2/3] + [-3/4 × (-5/6)]

Read more about distributive property at:

brainly.com/question/4077386

#SPJ1

5 0
2 years ago
A clerk at the butcher shop is six feet tall and wears size 10 shoes. What does<br> he weigh?
VikaD [51]

Answer:

he will weigh 300 lbs.

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
The larger of two numbers is five more than twice the smaller number. The sum of the two numbers is 38. Find the numbers.
White raven [17]

Answer:

11 and 16

Step-by-step explanation:

A good way to solve these is to work backwards.

X= larger and Y= smaller

if X is 5 more than 2Y than subtract 5 from the total

38 - 5 = 33

divide by 3

33/3 = 11

11 = Y and double that is 22 so add the five back into X and you get 16

8 0
4 years ago
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