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bija089 [108]
2 years ago
8

Rachel bought a book for $5.49 And a game for $10.98. She paid with a $20 bill. Which is the best estimate of the amount of chan

ge she should receive?
Mathematics
2 answers:
Inessa05 [86]2 years ago
7 0
Rachel will have about $3.53 in change---------
Tresset [83]2 years ago
5 0
So,
We can round 10.98 to 11 
We can round 5.49 to 5.50
11+5.50 = 16.50
20 - 16.50 = 3.5
So, the estimate of the amount of change Rachel would receive is $3.50.
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The temperature of an enclosure for a pet corn snake should be an average of 81° F. For the well-being of the corn snake, the te
mario62 [17]

Answer: |81-x|<5

Step-by-step explanation:

Given: Temperature of an enclosure for a pet corn snake should be an average of 81° F.

Temperature in the enclosure should not vary by more than 5° F.

Let x= Temperature in the enclosure

Then, difference between average and current temperature should less the 5.

i.e. |81-x|<5     (required absolute value equation  )

hence, the absolute value equation could be used to determine the minimum and maximum temperatures recommended for the corn snake enclosure:

|81-x|<5

4 0
2 years ago
Every morning Halle goes to school with a 1 liter bottle of water. She drinks 1/4 of the bottle before school starts and 2/3 of
valkas [14]

Answer:

1 1/3

Step-by-step explanation:

you have to take away 2/3 and 1/4 and add the one and your answer is 1 1/3 and the bottom of the fraction stay the same

3 0
2 years ago
Read 2 more answers
A house is being purchased at the price of $138,000.00. The 30-year mortgage has a 10% down payment at an interest rate of 4.875
Mama L [17]

Answer:

  $238,600

Step-by-step explanation:

The amount being borrowed is 100% -10% = 90% of the purchase price, or ...

  0.90 × $138,000 = $124,200.

Then the monthly payment can be computed using the amortization formula:

  A = P(r/12)/(1 -(1 +r/12)^(-12t))

  A = 124200(.04875/12)/(1 -(1 +.04875/12)^(-12·30)) ≈ 657.28

and the total repaid is ...

  (360 months) × ($657.28/month) = $236,619.58*

The cost of mortgage insurance is considered part of the cost of the loan. That amount is ...

  (77 months) × ($25.88/month) = $1992.76

so the total amount paid for the loan is ...

  $236,619.58 +1992.76 = $238,612.34

The cost of the loan is about $238,600.

_____

* In figuring the total repayment cost, we used the full-precision value for the loan payment. The actual repayment amount will depend on the rounded value of the loan payment and the way the final payment is made. When rounded to the nearest $100, these details become unimportant.

3 0
2 years ago
Mika estimated the sum of 189.27, 15.8, and 11.2 by rounding each number to the nearest whole.
shutvik [7]

Answer:

<u>Mika estimated the sum to be 216; the actual sum is 216.27.</u>

Step-by-step explanation:

Let's find the rounded sum and the actual sum, as follows:

Rounding each number to the nearest whole:

189.27 ⇒ 189

15.8 ⇒ 16

11.2 ⇒ 11

Sum = 189 + 16 + 11

Sum = 216

Actual sum:

Actual sum = 189.27 + 15.8 + 11.2

Actual sum = 216.27

<u>Mika estimated the sum to be 216; the actual sum is 216.27.</u>

7 0
2 years ago
Connor has seven more nickels than dimes and twice as many quarters as dimes. If he has $6.20, how many nickels does he have?
Novosadov [1.4K]
Connor has 16 nickels. If you have 9 dimes (90 cents) and you doubled it that would give you 18 quarters ($4.50). you have 7 more nickels than dimes, so you do 7+9 which equals 16 nickels (80 cents). 90+450+80=620.
8 0
2 years ago
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