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Mashutka [201]
3 years ago
15

PLEASE HELP AS SOON AS POSSIBLE Sunny earns $22.75 per week delivering newspapers. He worked as a delivery boy for 3 weeks. He a

lso earned $32.75 last month doing chores around the house. He spent $14.25 of his total earnings to download music on his mobile device. Sunny put 1 over 5 of the remaining money in his savings account. Sunny used the following steps to find the total money he put in his savings account:
Step 1: [($22.75 + 3) + $32.75 − $14.25] ⋅ 1 over 5

Step 2: [$44.25] ⋅ 1 over 5

Step 3: $11.0625

In which step did Sunny first make an error? Use words to explain how Sunny can correct his error
Mathematics
1 answer:
Pavlova-9 [17]3 years ago
4 0
Step 1 he had to multiply the $22.75 times 3 weeks it should have been 
($22.75 x 3) + $32.75 - $14.25
$68.25 + 32.75 - $14.25
$86.75
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The height of the cylinder
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Describe a way to calculate 304-81 mentally by using reasoning other that the common subtraction algorithm. Then write a coheren
Leno4ka [110]

Answer:

A simple way to mentally subtract is to simplify the numbers, subtract, then subtract or add for the simplified answer.

Step-by-step explanation:

A simple way to mentally subtract is to simplify the numbers, subtract, then subtract or add for the simplified answer. For this 304 - 81 is easier as 300 - 80. Make note that we took away 4 from 304 and 1 from 81. Now we just subtract mentally, and 300 - 80 = 220. If we took 4 from 304, this means that our answer should be 4 less, since 4 less would be 304 - 80 = 216. If we took 1 from 81, then we add 1 back to get the equation 304 - 81 = 217.

304 - 81 = ?

300 - 80 = 220

304 - 80 = 216

304 - 81 = 217

7 0
3 years ago
Read 2 more answers
If 12,025 was invested at 3.25% compounded monthly 3 years, how much interest will be earned
wariber [46]

Answer:

$1,229.75

Step-by-step explanation:

Lets use the compound interest formula provided to solve this:

A=P(1+\frac{r}{n} )^{nt}

<em>P = initial balance</em>

<em>r = interest rate (decimal)</em>

<em>n = number of times compounded annually</em>

<em>t = time</em>

<em />

First, change 3.25% into a decimal:

3.25% -> \frac{3.25}{100} -> 0.0325

Since the interest is compounded monthly, we will use 12 for n. Lets plug in the values now:

A=12,025(1+\frac{0.0325}{12})^{12(3)}

A=13,254.75

Lastly, subtract A from P to get the interest earned:

13,254.75 - 12,025 = 1,229.75

6 0
2 years ago
Please tell me the answer of this question as soon as possible.
gayaneshka [121]

Answer:

im not learning this yet so i dont know srry

7 0
2 years ago
Q= r/2 (s +t) for t.
Vanyuwa [196]

Answer:

t=2Q-sr/r

Step-by-step explanation:

We are to make t the subject of formula from the given question

Q=r/2 (s+t)

Q=Sr+tr/2

Cross multiply

2Q=Sr+tr

2Q-sr=tr

t=2Q-sr/r

7 0
2 years ago
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