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Charra [1.4K]
4 years ago
10

Becky added 273+416 and got 688.Then she checked her answer by adding 688+416.What error did Becky make?Was the sum she found fo

r the original problem correct?Explain.
Mathematics
2 answers:
Oduvanchick [21]4 years ago
6 0
273+416 will give you the sum of 688.
so you take your answer and subtract it from the previous question.
either way you should get the other number to the equation (for example)
688-416=273
or
688-273=416
to check her addition work she should've subtracted her answer from a previous number she used in her addition problem.
Komok [63]4 years ago
5 0
You were post to -416 and get 273
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It takes you 12 minutes
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Answer:

48 minutes

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\frac{1}{5} x = 12

x = 60

60 - 12 = 48

It will take 48 more minutes to finish raking the backyard.

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2 years ago
According to the US Census, there are about 117,000,000 households in the US. If every household replaced 1 60W incandescent bul
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Answer:

The country is saved 1.0647×10^10 kWh of electricity per year.

Step-by-step explanation:

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4 0
3 years ago
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Find the rational roots f(x) =3x3+ 2x2 + 3x + 6
Ann [662]

The rational roots of f(x) = 3x^3 + 2x^2 + 3x + 6 are ±(1, 2, 3, 6, 1/3, 2/3)

<h3>How to determine the rational root of the function f(x)?</h3>

The function is given as:

f(x) = 3x^3 + 2x^2 + 3x + 6

For a function P(x) such that

P(x) = ax^n +...... + b

The rational roots of the function p(x) are

Rational roots = ± Possible factors of b/Possible factors of a

In the function f(x), we have:

a = 3

b = 6

The factors of 3 and 6 are

a = 1 and 3

b = 1, 2, 3 and 6

So, we have:

Rational roots = ±(1, 2, 3, 6)/(1, 3)

Split the expression

Rational roots = ±(1, 2, 3, 6)/1 and ±(1, 2, 3, 6)/3

Evaluate the quotient

Rational roots = ±(1, 2, 3, 6, 1/3, 2/3, 1, 2)

Remove the repetition

Rational roots = ±(1, 2, 3, 6, 1/3, 2/3)

Hence, the rational roots of f(x) = 3x^3 + 2x^2 + 3x + 6 are ±(1, 2, 3, 6, 1/3, 2/3)

The complete parameters are:

The function is given as:

f(x) = 3x^3 + 2x^2 + 3x + 6

The rational roots of f(x) = 3x^3 + 2x^2 + 3x + 6 are ±(1, 2, 3, 6, 1/3, 2/3)

Read more about rational roots at

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3 years ago
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allochka39001 [22]

Numerical Expression

The expression consists of numbers and arithmetic operators. It does not contain equality or inequality symbols.

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decimal form 9.5

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2 years ago
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