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babymother [125]
2 years ago
5

Kenji uses the diagram to determine the quotient of StartFraction 9 Over 10 EndFraction and Three-fifths. A fraction bar labeled

1. Under the 1 are 10 boxes labeled StartFraction 1 Over 10 EndFraction. Under the 10 boxes are 5 boxes labeled one-fifth. He arrives at an answer of 4 and one-half. Which could be Kenji’s error? Kenji counted by One-fifth instead of Three-fifths. Kenji computed the division backwards, Three-fifths divided by StartFraction 9 Over 10 EndFraction. Kenji used the wrong fractional part to represent what was left over. Instead of a number of out 2, the number should be out of 5. Kenji used the wrong fractional part to represent what was left over. Instead of a number of out 2, the number should be out of 10.
Mathematics
3 answers:
IRISSAK [1]2 years ago
4 0

Answer:

Kenji counted by One fifth instead of three fifths.

Step-by-step explanation:

When you count by one fifths to equal the 9/10 then you would get 4 1/2 as an answer. the answer is counting by three fifths to equal 1 1/2.

just olya [345]2 years ago
3 0

A is the answer. Brainiest? :>

Guest11 months ago
0 0

It's "A", trust me, it's correct. (Unable to send image)


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Use the data in the table to complete the sentence. x y –2 7 –1 6 0 5 1 4 The function has an average rate of change of ________
lora16 [44]

Answer:  To find the average rate of change, evaluate the function at the given points.

Evaluate the difference of the function at the given points.

Divide the difference of the function at the given points with the difference of the given points.

Step-by-step explanation:

The Average of rate is -1.

Everytime it goes up by one the y goes down by 1 so it would be -1.

8 0
1 year ago
What are the factors of the polynomial function? Use the rational root theorem to determine the factors. f(x) = 2x³ + x² - 8x -
fredd [130]

Answer:

( x + 2 ) ( x - 2 ) ( 2x + 1)

Step-by-step explanation:

coefficient of x³ is 2 and denote it with q and denote -4 as p

the set of possible rational roots through rational theorem will be within ± (p/q)

now factors of -4 are ±(1,2,4) and factors of 2 are ± (1,2) the possible rational roots are ± ( 1/1, 1/2, 2/1, 2/2, 4/1, 4/2) which reduces to ± (1, 1/2, 2, 4)

substitute each of the value into the equation

f(x) = 2x³ + x² - 8x - 4 to the root ( that gives f(x) = 0)

the equation can be made easy writing it in reduced form

2x³ + x² - 8x - 4

(2x³ + x²) - (8x + 4)

x² (2x + 1) - 4 (2x + 1)

(x² - 4) (2x + 1)

( x + 2 ) ( x - 2) ( 2x + 1) are the factors which correspond to 2, -2, -1/2 roots

4 0
1 year ago
Which of the following is the graph of y = StartRoot negative x minus 3 EndRoot? On a coordinate plane, an absolute value curve
MariettaO [177]

Answer:

d

Step-by-step explanation:

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8 0
2 years ago
Mr robbins earns a commission on each airfare he books. At the end of the day,he had booked $208.60 worth if airfare and earned
LenKa [72]

Answer:

Mr. Robins commision rate is 15%.

Step-by-step explanation:

Formula

Percentage = \frac{Part\ value\times 100}{Total\ value}

As given

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At the end of the day,he had booked $208.60 worth if airfare and earned $31.29.

Here

Part value = $31.29

Total value = $208.60

Put in the formula

Percentage = \frac{31.29\times 100}{208.60}

Percentage = \frac{312900}{20860}

Percentage = 15%

Therefore the  Mr. Robins commision rate is 15%.

4 0
2 years ago
A coin will be flipped repeatedly until the sequence TTH (tail/tail/head) comes up. Successive flips are independent, and the co
padilas [110]

Answer:

P = \frac{1}{3}

Step-by-step explanation:

The calculation of the value of p minimizes is shown below:-

We will assume the probability of coming heads be p

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In order to less N,TTH

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\frac{d P(TTH)}{dP} = 0

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For P(TTH) to be maximum

\frac{d^2 P(TTH)}{dP} < 0 for\ P\ critical\\\\\frac{d (3P^2 - 4P - 1)}{dP}

= 6P - 4

and

(6P - 4) is negative which is for

P = \frac{1}{3}

5 0
2 years ago
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