Answer:
n = 5
Step-by-step explanation:
Given
= ( cross- multiply )
18n = 90 ( divide both sides by 18 )
n = 5
Answer:
The height of Mount Rushmore is
Step-by-step explanation:
we know that
-----> equation A
-----> equation B
equate equation A and equation B and solve for x
Find the height of Mount Rushmore
The height is equal to
Y = kx where k is a constant
27 = k*9
k = 27/9 = 3
required variation is y = 3x
Answer:
A=P+I A=800+6.4 A=806.4
Step-by-step explanation: The interest is $6.4 and the amount is $806.4. Convert 8 months into years.
8 months =812 years=0.6667 years
Find an interest by using the formula I=P⋅i⋅t, where I is interest, P is total principal, i is rate of interest per year, and t is total time in years.
In this examplee P = $800, i = 1.2% and t = 0.6667 years, so
I=P⋅i⋅t I=800⋅0.012⋅0.6667 I=6.4
STEP 3: Find an amount by using the formula A=P+I.
Since P = $800 and I = $6.4 we have
A=P+I A=800+6.4 A=806.
Answer:x
Step-by-step explanation: