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3 years ago

Pamela’s age is three times Jiri’s age. The sum.of their ages is 48. What is jiris age

Mathematics

1 answer:

kap26 [50]3 years ago

5 0

Answer:

Jiri is 12 years old

Step-by-step explanation:

To start off we need to make an equation. Since we know both of their ages add up to 48 and that Pamela's age is 3 times Jiri's age we can say x(Jiri's Age) + 3x(Pamela's age) =48 --> x+3x=48

Now we have the equation x+3x=48, and we need to solve it.

First combine like terms

4x=48

Now divide both sides by 4

x=12

And now since we are using Jiri's age as x we know Jiri is 12 years old.

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Artist 52 [7]

Answer:

Therefore the value of x is 5.

Step-by-step explanation:

Given:

△ABC ≅ △DEF,

EF = x 2 - 7, and

BC = 4x - 2.

To Find:

the values of x. = ?

Solution:

△ABC ≅ △DEF ........Given

If two Triangles are congruent then the Corresponding Parts of Congruent Triangles are Congruent.

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Substituting the values we get

$4x-2=x^{2}-7\\x^{2}-4x-5=0$

Now By Factorizing we get

$x^{2}-5x+x-5=0\\x(x-5)+1(x-5)=0\\(x+1)(x-5)=0\\x+1=0\ or\ x-5=0\\x=-1\ or\ x=5\\x\ cannot\ be\ negative\\\therefore x=5$

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Answer:

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In standard form,

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Step-by-step explanation:

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atroni [7]

Answer:

Step-by-step explanation:

Given:

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Proof:

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STATEMENT REASON

1. TU ≅ WU 1. Given

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irga5000 [103]

Answer:

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