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Ahat [919]
3 years ago
13

Math question help me please

Mathematics
1 answer:
nignag [31]3 years ago
3 0

Answer:

he 8 times

Step-by-step explanation:

so he mows 5 time his sister which is 9 but it says 3 for the sister instead of 4 making it 8

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If \$1000 is deposited into an account that earns 3.25\% simple interest per year, how much money will be in the account after 7
Andrei [34K]
<h3>Answer: 1227.50 dollars</h3>

======================================================

Explanation:

The simple interest formula to use is

A = P*(1+r*t)

where,

A = account value after t years (original deposit + interest)

P = 1000 = amount deposited (principal)

r = 0.0325 = annual interest rate in decimal form

t = 7 = number of years

So,

A = P*(1+r*t)

A = 1000*(1+0.0325*7)

A = 1227.50

Side note: you've earned A-P = 1227.50-1000 = 277.50 dollars in total interest

8 0
3 years ago
Fernando had 2 children. Each of their children had 2 children, and each of these
rjkz [21]

Answer:

4

Step-by-step explanation:

Fernando-

Child 1-     Child 2-

2 kids-      2 kids-            = 4 grandchildren for Fernando

2 kids       2 kids              These are his great grandchildren, not grandchildren.

7 0
2 years ago
Find the derivative of f(x) = 11x2 + 5x at x = 9.
Yakvenalex [24]
F(x) = 11x² + 5x 

f'(x) = 22x + 5

Hence,

f'(9) = (22 * 9) + 5 = 198 + 5 = 203
3 0
3 years ago
Read 2 more answers
Given: f(x)=x-7and h(x) = 2x+3
Musya8 [376]
I have no idea math is so freaking hard x
5 0
3 years ago
PLEASE HELP. TAKE AT HOME TEST. if u = LN5 and v = LN2, write LN8/15 in terms of u and v. (8/15 is 8 over 25)
astra-53 [7]

Answer:

\ln( \frac{8}{25} )  = 3v  -  2u

Step-by-step explanation:

We have that

u=  \ln(5)

and

v =  \ln2

This implies that;

5 =  {e}^{u}

and

2 =  {e}^{v}

Now find and expresion for

\ln( \frac{8}{25} )

Which is

\ln( \frac{8}{25} )  =  ln(8)  -  ln(25)

\ln( \frac{8}{25} )  =  ln( {2}^{3} )  -  ln(  {5}^{2} )

\ln( \frac{8}{25} )  = 3 ln( {2} )  -  2ln(5)

\ln( \frac{8}{25} )  = 3v  -  2u

8 0
3 years ago
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