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3 years ago

0.9 _ 0.023 _ 3 over 20 _ 5 over 6 rename each as a percent

1 answer:

5 0

The first one would be 90%. the second one would be 2.3%. the third one would be 150%. and the final one will be 83.3333%.

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Vinvika [58]

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2 years ago

Write 8 in scientific notation

mihalych1998 [28]

Answer:

8 x 10 ^0

Step-by-step explanation:

the reason why is because there is no 0 behind the 8 so the exponent could not say a number so it is just 0

7 0

3 years ago

MULTIPUL ANSWER CHOICE GIVE ME MORE THAN 1 ANSWER AND MAKE IS CORRECT! PLEASE AND THANK YOU!

barxatty [35]

Answer: The opposite of the opposite of a number is the number itself. And the opposite of the opposite of a number is the number itself.

Step-by-step explanation:

6 0

2 years ago

Heather has divided $5400 between two investments, one paying 8%, the other paying 5%. if the return on her investment is $

Phantasy [73]

Answer:

$2500 at 8%.

$2900 st 5%.

Step-by-step explanation:

Let x be the amount invested at rate of 8% and y be the amount invested at the rate of 5%.

We have been given that Heather has divided $5400 between two investments. We can represent this information as:

$x+y=5400...(1)$

The return on her investment is $345.

Earnings from the investment at 8% will be 8% of x.

Earnings from the investment at 5% will be 5% of y.

$(\frac{8}{100})x+(\frac{5}{100})y=345...(2)$

$0.08x+0.05y=345...(2)$

We will use substitution method to solve our system of equations. From equation (1) we will get,

$x=5400-y$

Substituting this value in equation (2) we will get,

$0.08(5400-y)+0.05y=345$

$432-0.08y+0.05y=345$

$-0.08y+0.05y=345-432$

$-0.03y=-87$

$\frac{-0.03y}{-0.03}=\frac{-87}{-0.03}$

$y=2900$

Therefore, Heather has invested an amount of $2900 at 5%.

Let us substitute y=2900 in equation (1) to solve for x.

$x+2900=5400$

$x+2900-2900=5400-2900$

$x=2500$

Therefore, Heather has invested an amount of $2500 at 8%.

6 0

3 years ago

which of the following are the dimensins of a rectangle that has a perimeter of 148 and an area of 144

atroni [7]

The dimensions are 72x2
Because $72*2=144$ & $72+72+2+2=148$
Your'e Welcome!!
Hopefully this is Brainliest worthy!!

8 0

3 years ago