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fenix001 [56]
3 years ago
12

8(y - 5 ) is equivalent to which following?​

Mathematics
1 answer:
ladessa [460]3 years ago
7 0

Answer:

8y-40

Step-by-step explanation:

First you expand the brackets

8 x y - 8 x 5

= 8y - 40

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Casey deposited $1,450 in a bank account with an interest rate of 4%. How much simple interest was earned in two years?
vekshin1

Answer:

$116

Step-by-step explanation:

The Simple Interest formula is i = prt.  Here,

i = ($1,450)(0.04)(2 yr) = $116

3 0
3 years ago
An unbiased coin is tossed 15 times. In how many ways can the coin land tails either exactly 8 times orexactly 5 times?
Kitty [74]

Answer:

Probability to get tails exactly 8 times or exactly 5 times is 0.29

Step-by-step explanation:

No of ways the coins lands tails exactly 8 times

P(8) = 15C8 × 0.5^{8} × 0.5^{15-8}

No of ways the coin lands tails exactly 5 times

P(5) = 15C5 × 0.5^{5} × 0.5^{15-5}

Probability to get tails exactly 8 times or 5 times

P(8)+P(5) =  15C8 × 0.5^{15} + 15C5 × 0.5^{15}

P = 0.5^{15} (  15C8 + 15C5 )

P = 0.5^{15} ( (  \frac{15!}{8!(15-8)!}  ) + ( \frac{15!}{5!(15-5)!} ) )

P = 0.5^{15} ( 6435 + 3003 )

P = 0.5^{15} ( 9438)

P = 0.5^{14} ( 4719)

P =  \frac{4719}{16384}

P = 0.29

8 0
3 years ago
Four times the number of coins in my pocket plus five more is twenty-nine. Write an equation for the number of coins in my pocke
Lynna [10]
There are six coins already in pocket, but let’s say we don’t know it.

We would figure it out by reversing the problem. Let’s start with twenty-nine. We would subtract 5, because we are reversing. Now we have 24. Now, let’s divide by four. We would get 6.

A simpler answer would be 29 - 5 [divided by] 4 = [answer]
4 0
3 years ago
.
kakasveta [241]

Answer:

She drove 12 hours

5+4+3=12

Step-by-step explanation:

5 0
3 years ago
How to write 8 17/20 as a decimal number
worty [1.4K]

Hello!

Answer:

In order to convert mixed number 8 17/20 to decimal form, you follow these steps:

Convert the proper fraction to a decimal: Divide the numerator by the denominator

17 ÷ 20 = 0.85

Add this decimal number to the whole number of the mixed fraction

8 + 0.85 = 8.85

The mixed number 8 17/20 converted to decimal number is, therefore:

8.85

Hope this helps <3

4 0
3 years ago
Read 2 more answers
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