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Tomtit [17]
3 years ago
13

What is the first step in solving this equation? 10d - 4 = 91

Mathematics
1 answer:
Vikentia [17]3 years ago
8 0

Answer:

Step-by-step explanation:

the first step in solving this equation is adding 4 on both sides

10d = 95

d = 95/10 = 9.5

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Samantha has $1,290 in a savings account that pays 4% simple interest. How much interest will she earn in 9 months? How much wil
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Given:

Principal = $1290

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Time = 9 months

To find:

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Solution:

The formula for simple interest is

I=\dfrac{P\times r\times t}{100}      ...(i)

where, P is principal, r is rate of interest and t is time in years.

We know that,

12\ months=1\ year

1\ month=\dfrac{1}{12}\ year

9\ months=\dfrac{9}{12}\ year

9\ months=0.75\ year

Putting P=1290, r=4 and t=0.75 in (i), we get

I=\dfrac{1290\times 4\times 0.75}{100}

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So, the simple interest is $38.70.

Total savings is

1290+38.70=1328.70

Therefore, the total amount in the account altogether is $1328.70.

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3 years ago
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Oduvanchick [21]

Answer:

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Step-by-step explanation:

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Solve the system of linear equations -3x+5=13 and x+4y=-10
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Answer:

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Step-by-step explanation:

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4) A salesperson is paid $60 per week plus $4.50 per sale. This week, the salesperson wants to earn at least $250. How many sale
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。☆✼★ ━━━━━━━━━━━━━━  ☾  

Subtract the $60 out of the total first

250 - 60 = 190

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190 / 4.50 = 42.2222

Thus, they must make 43 sales in order to meet the goal

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。☆✼★ ━━━━━━━━━━━━━━  ☾

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