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posledela
4 years ago
10

Jackson estimated 637 ÷ 78 as 640 ÷ 80. He reasoned that 64 tens divided by 8 tens should be 8 tens. Is Jackson’s reasoning corr

ect? If so, explain why. If not, explain a correct solution.
Mathematics
1 answer:
Sholpan [36]4 years ago
7 0

Answer:

the correct solution has been explained

Step-by-step explanation:

Jackson,s reasoning is incorrect  because it should be 8 ones and not 8 tens that would give 64

\frac{640}{80} = \frac{64}{8} = 8

Moreover, \frac{637}{78}  is\ not\ equal\ to \frac{640}{8}

as \frac{637}{78}= 8.16

whereas \frac{640}{80} = 8

clearly, both quantities are different

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zubka84 [21]

Answer:

The balance amount owed on the credit card altogether =  $258.43

Step-by-step explanation:

Here, the current amount owed on the credit card = $225.45

Now, the amount of payment made to the credit card  = $55.00

So, the remaining amount owed =   Current Debt - Paid Amount

                                                         = $225.45  - 55 = $170. 45

Again, the purchase amount at Macy's  = $87.98

⇒ New amount owed on credit card  = Previous Debt + New Purchase

                                                                = $170. 45 +  $87.98 =  $258.43

Hence, the balance amount owed on the credit card  =  $258.43

5 0
4 years ago
What is 2 5/8 - 2 3/12?
Marianna [84]

Answer:

9/24

Step-by-step explanation:

First, find the LCD: 24.

24/8=3. 3*5=15. So, 2 5/8 becomes 2 15/24.

24/12=2. 2*3=6. So, 2 3/12 becomes 2 6/24.

2 15/24 - 2 6/24 = 9/24.

7 0
3 years ago
1. Georgia did an experiment. She started out with 700 bacteria cells. She found that the growth rate of the bacteria cells was
Kitty [74]

panocha

Step-by-step explanation:


5 0
4 years ago
What is 64% of 75? (Find the percent of each number)
Musya8 [376]
64\%\cdot75=\\\\0.64\cdot75=\\\\48\\\\48\ is\ 64\%\ of\ 75
8 0
3 years ago
Let f(x) = x ^ 2 and g(x) = x - 3 . Evaluate (g?f)(0).
nignag [31]

Answer:

g(f(0))=-3

Step-by-step explanation:

we have

f(x)=x^{2}

g(x)=x-3

we know that

(g o f)(x)=g(f(x))

substitute the variable x in the function g(x) by the function f(x)

so

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Evaluate g(f(0))

For x=0

g(f(0))=0^{2}-3

g(f(0))=-3

5 0
4 years ago
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