-5.5=7.3+v/8
convert decimals to fractions
-11/2=73/10+v/8
multiply both sides by 40
-220=292+5v
move terms
-5v=292+220
add the numbers
-5v=512
divide both sides by -5
v=512/5
answer
Answer:
B. 47
Step-by-step explanation:
The formula for an arithmetic sequence is
an = a1+d(n-1)
a1 =3 (it is the first term)
We can find the common difference by taking the second term and subtracting the first term
5-3 =2
d=2
n = the term number we are looking for
an = 3 + 2(n-1)
We are looking for the 23rd term so n=23
a23 = 3 +2(23-1)
= 3 +2(22)
= 3+44
= 47
45 is 75% of what?
45 is 75% of X
Equation: Y = P% * X
Solving our equation for X
X = Y/P%
X = 45/75%
Converting percent to decimal:
p = 75%/100 = 0.75
<span>X = 45/0.75 </span>
<span>X = 60
Hope I helped!
Let me know if you need anything else!
~ Zoe</span>
Answer:
k = log9 / log 0.66
k = 5.3
Step-by-step explanation:
Please always remember that, when an exponential equation is given with different bases, the best approach is to take log of both sides.
If you have a calculator handy, that would be pretty fast and easy.
0.66 ^ k = 9
Take log of both sides:
klog 0.66 = log 9
k = log 9 / log 0.66
k = 0.954 / - 0.18
k = -5.3
Maths is fun, let's keep learning
3x-5y=10
-5y=-3x+10
y=3/5x-2