3 years ago

Please help I’ll give brainliest

2 answers:

4 0

The exponent tells you how many times you multiply the number before it. So 2^3 is equivalent to 2*2*2. 2^3 is 8, and 3^2 is 9, 8*9 is 72.

Ilia_Sergeevich [38]3 years ago

4 0

Answer:

Step-by-step explanation:

simply use calculator if you want to get the answe faster

2^3 x 3^2

= 8 x 9

= 72

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Alvin has $760 less invested in 7% than he has at 5%. If his annual income from these two investments is $51.20, how much does h

kondor19780726 [428]

Answer:

Alvin invested $110 at rate of 7% and invested $870 at rate of 5%

Step-by-step explanation:

we know that

The simple interest formula is equal to

$I=P(rt)$

where

I is the Interest Value

P is the Principal amount of money to be invested

r is the rate of interest

t is Number of Time Periods

in this problem

Let

x------> the amount of money invested at rate of 5%

At rate of 7%

we have

$t=1\ years\\ P=(x-\$760)\\r=0.07$

At rate of 5%

we have

$t=1\ years\\ P=x\\r=0.05$

substitute in the formula

$51.20=(x-760)(0.07*1)+(x)(0.05*1)$

$51.20=0.07x-53.2+0.05x$

$51.20+53.2=0.12x$

$x=104.4/0.12=\$870$

therefore

Alvin invested ($870-$760)=$110 at rate of 7%

Alvin invested $870 at rate of 5%

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-5 would be the y coordinate

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What is 494 x 20.62 rounded to the hundredths place?

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