(7k^4)(3k^9) what is the answer to this problem
2 answers:
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Answer:
The number of letters in the one street be 220 .
Step-by-step explanation:
As given
A postman has to deliver 450 letters .
The number of letters delivered in one street is twice the number delivered in other .
Let us assume that the number of letters delivered in second street be x.
Let us assume that the number of letters delivered in first street = 2x
As given
If he is left with 120 letters .
Thus
The number of letter delivered in one and other street = 450 - 120
= 330
Than the equation becomes
x + 2x = 330
3x = 330
x = 110
The number of letters in the one street = 2 × 110
= 220
Therefore the number of letters delivered in first street be 220.
Shawana, Dexter, and Tilana are correct.
<h2>Given that</h2>Equation:
Which students are correct?
<h3>According to the question</h3><h3>Equation:The correct way to solve the equation is;
SHAWNA
Statement: Dividing each side of the equation by –2.5,
Here, Shawna is correct.
DEXTER
Statement: Distributing -2.5 to get -12.5 + 2.5 n + 2 = 15.
Hence, Dexter is correct.
" Tirana says, "I can begin by multiplying each side of the equation by Negative Start fraction 1 over 2. 5 End fraction to get 5 minus n minus 0. 8 = negative 6. "
Hence, Tilana is also correct.
Hence, Shawana, Dexter and Tilana are correct.
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