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nlexa [21]
3 years ago
14

What is x the missing side length in triangle DEF

Mathematics
1 answer:
larisa86 [58]3 years ago
4 0

Answer:

x = 9.75

Step-by-step explanation:

We know that Triangle ABC and DEF are congruent, therefore;

\frac{CB}{FE} = \frac{AB}{DE}<em />

\frac{12}{9 }=\frac{13}{x}

=> 12*x = 9*13

=> 12x = 117

=> x = 117 / 12

<u>=> x = 9.75</u>

Hope this helps!

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Given :

Mo spends £15 on ingredients to make 40 cookies.

He sells all 40 cookies for 50p each.

To Find :

The Mo's percentage profit.

Solution :

We know, 1 £ = 66.09 p.

So, total income is :

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T = 2000 p

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T = £30.26

So, total profit is, P = £( 30.26 - 15 ) = £15.26 .

Hence, this is the required solution.

8 0
3 years ago
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Mrrafil [7]

Answer:

5 days

Step-by-step explanation:

The question above is modeled by the equation :

150 − 8x = 170 − 12x.

After how many days will both have ye same amount :

Number of days = x

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x = 5 days

The boys will have the same amount in their account after 5 days.

8 0
3 years ago
(x + 7)^2 – 11 = 0<br> lesser =<br> greater =
Andreyy89

Answer:

Lesser = -\sqrt{11} - 7 = -10.317

Greater = +\sqrt{11} - 7 = -3.683

Step-by-step explanation:

I am assuming you are asking for the lesser x solution and greater x solution.

(x + 7)^2 – 11 = 0

(x + 7)^2 = 11

x+7 = ±\sqrt{11}

x = ±\sqrt{11} - 7

Lesser = -\sqrt{11} - 7 = -10.317

Greater = +\sqrt{11} - 7 = -3.683

4 0
3 years ago
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