All categories

3 years ago

Erin solved the problem. 1,000-479=521 Which equation did Erin use ro check his answer?

Mathematics

1 answer:

dimaraw [331]3 years ago

6 0

Hi there!

equation:521+479=1000..

<em><u>If your subtract 479 from 1,000, in addition form it should be the opposite..</u></em>

we also know that adding’s oppsite is subtracting and multiplyin’s opposite is dividing..

Therefore, the equation Erin used to check his answer would be 521+479=1,000..

You might be interested in

0.965 x 102 help me plz

ValentinkaMS [17]

98.43

May nilbin be with you

5 0

3 years ago

Read 2 more answers

Which fraction is equal to 7

Leya [2.2K]

The answer is E 73/10

3 0

3 years ago

Given the formula, Sn=a 1-r^n/1-r, what is the sum of the first nine terms of the geometric series: 324, -108, 36, -12...

vlada-n [284]

Answer:

243.01.

Step-by-step explanation:

The first term (a) = 324.

The common ratio (r) = -108/324 = -1/3.

So sum of 9 terms is:

S(9) = 324 * (1 - (-1/3)^9) / ( 1 - (-1/3)

= 324 ( 1 - (-0.00005076)) / 4/3

= 324 * 1.00005076 / 1.33333

= 243.012.

3 0

3 years ago

.Damian wrote the number five and thirty-eight thousandths as 5.38. Was he correct or not? if so, what was the error

eduard

Answer:

he is incorrect.

Step-by-step explanation:

It would be 5 and 38 HUNDRETHS because the first number after the decimal is the tenths.

5 0

3 years ago

the vertex of this parabola is at (5,5). when the x-value is 6, the y-value is -1. what is the coefficient of the squared in the

zlopas [31]

Answer: OPTION D.

Step-by-step explanation:

The vertex form of a quadratic function is:

$y= a(x - h)^2 + k$

Where (h, k) is the vertex of the parabola and "a" is the coefficient of the squared in the parabola's equation.

We know that the vertex of this parabola is at (5,5) and we also know that when the x-value is 6, the y-value is -1.

Then we can substitute values into $f (x) = a(x - h)^2 + k$ and solve for "a". This is:

$-1= a(6- 5)^2 + 5\\\\-1=a+5\\\\-1-5=a\\\\a=-6$

7 0

4 years ago

Erin solved the problem. 1,000-479=521 Which equation did Erin use ro check his answer?​

Erin solved the problem. 1,000-479=521 Which equation did Erin use ro check his answer?