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3 years ago

Show the tens fact you used. write the difference for 2nd grade math

Mathematics

2 answers:

IrinaK [193]3 years ago

5 0

Answer:

1×1=1

1×2

1×3

1×4

1×5

1×6

1×7

1×8

1×9

1×10

Aleksandr [31]3 years ago

3 0

1×1=1
1×2
1×3
1×4
1×5
1×6
1×7
1×8
1×9
1×10

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Two students were asked to find the value of a $1000 item after 3 years. The item was depreciating (losing value) at a rate of 4

Yuki888 [10]

Answer:

<em>Student 2 is incorrect because he didn't use the formula properly</em>

Step-by-step explanation:

The exponential function is often used to model natural growing or decaying processes, where the change is proportional to the actual quantity.

An exponential decaying function is expressed as:

$C(t)=C_o\cdot(1-r)^t$

Where:

C(t) is the actual value of the function at time t

Co is the initial value of C at t=0

r is the decaying rate, expressed in decimal

The initial value of the item is Co=$1000, the rate of decay is r=40%=0.4, and the time is t=3 years.

Substituting into the formula:

$C(3)=\$1000\cdot(1-0.4)^3$

$C(3)=\$1000\cdot0.6^3$

C(3)=$216

Student 2 is incorrect because he didn't use the formula properly

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3 years ago

There is a certain number. If you add 30/7 to it, from the sum you get subtract 22/7 , and then subtract that difference from 59

xeze [42]

30/7 +30/7=60/7
60/7-22/7=38/7
59/7 -38/7=21/7
21/7 -19/7=2/7

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3 years ago

A mechanic charges $45 per hour and parts cost $125 write an expression for the total if the mechanic works h hours

Free_Kalibri [48]

This is my expression: 45h + 125. I hope this helps.

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3 years ago

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Tanzania [10]

Answer:

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Step-by-step explanation:

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3 years ago

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vfiekz [6]

Answer: 50%

Step-by-step explanation:

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3 years ago

Read 2 more answers