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Digiron [165]
3 years ago
9

Pls help. Have tried this problem a couple times but my answers didnt work

Mathematics
2 answers:
Basile [38]3 years ago
6 0

Answer:

N - 4 = 3(M - 4). Simplified further, N - 4 = 3(M - 4)

Given,

Nina is N years old now and;

Maryna is M years old now

If four years ago, Nina was three times as old as Maryna was, then

Four years ago, Nina's age was N - 4

Four years ago, Maryna's age was M - 4

Given that Nina was three times as old as Maryna was four years ago, it means that

N - 4 = 3(M - 4)

To solve further

N = 3m - 12 + 4

N = 3M - 8

Step-by-step explanation:

pantera1 [17]3 years ago
4 0

Answer:

infinite solutions...

Step-by-step explanation:

Is there more information to this problem? It can be pretty much anything.

N=3M

Nina can be 30 and Maryna 10, Nina can be 3 and Maryna 1, Nina can be 15 and Maryna 5...

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enot [183]
Jane is 16 twices as old as joan
8 0
3 years ago
Can someone help me find the area of these? ​
andreev551 [17]

Answer:

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Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Given y=1/4x+2, i first isolate the constant. After doing so , i get the equation -1/4x+y=2.To remove the fraction, i multiply b
dexar [7]

Answer: this is wrong. The final answer should be x - 4y = 8

Step-by-step explanation:

y = 1/4x + 2

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3 0
3 years ago
|x+18|=1
zepelin [54]
The absolute value, or modulus, of a number is its distance from zero, or essentially its magnitude.

The absolute value produces a positive answer.

We have this definition for the absolute value, taking into account its different values for different signs:

|x|= \left \{ {{x, \ \ \ x \ \geq \ 0} \atop {-x, \ \ \ x \ \ \textless \  \ 0}} \right.

Thus, for |x+18|=1, we split the absolute value as such:

x+18=1 and x+18=-1

We solve each case.

x=-17 and x=-19

We check these solutions.

|-17+18|=1\\|1|=1\\1=1
and
|-19+18|=1\\|-1|=1\\1=1
5 0
3 years ago
Read 2 more answers
Find the area of the triangle
BartSMP [9]
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Area of the triangle = 1/2 x 74 x 17

Area of the triangle = 629 ft²

Answer:  629 ft²
6 0
3 years ago
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