Answer:
all work is shown/pictured
SecФ=2 what does Ф= in degrees and in degrees
2 answers:
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To solve this problem we are going to use the simple interest formula: 
where
is the sum of the <span>interest and the principal
</span>
is the principal
is the interest rate in decimal form
is the time in years
<span>
We know for our problem that </span>
, 
, and 
. Now, let 
represents our interest rate. To express the interest rate in decimal form, we are going to divide the rate by 100%:
.
Now that we have all the values we need, lets replace them in our simple interest formula to find the interest rate:
![21000=15000[1+(0.01x)(5)]](https://tex.z-dn.net/?f=21000%3D15000%5B1%2B%280.01x%29%285%29%5D)
We can conclude that the interest rate of your cousin's loan was 8%.
where
</span>
<span>
We know for our problem that </span>
Now that we have all the values we need, lets replace them in our simple interest formula to find the interest rate:
We can conclude that the interest rate of your cousin's loan was 8%.
Expanded form of 3( 6 + 7) is
Need to use distributive property to write the expanded form of 3(6 + 7)
Let’s understand what is distributive property.
The distributive property states that multiplying a sum by a number gives the same result as multiplying each addend by the number and then adding the products together.
According to distributive property, for numbers a , b and c
----- eqn 1
3(6 + 7) can be rewritten as 3 ( 6 + 4 + 3 ) = 3 ( 10 + 3 )
Now in our case a = 3 , b = 10 and c = 3
On substituting the values of a , b and c in equation 1 we get
So expanded form of 3( 6 + 7) is