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Gala2k [10]
3 years ago
8

When Sam simplified the expression 3.5-(-4.1), she got -0.6. What mistake did Sam likely

Mathematics
1 answer:
stellarik [79]3 years ago
3 0
That answer for that would be D
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9 less than (84 divided by 7) times 5 increased by 5
Verizon [17]
The correct answer is 20
7 0
3 years ago
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Two Bonds funds pay interest at rates that differ by 1%. Money invested for one year and the first fund earns $280 interest. The
Akimi4 [234]
First one is 2.8
Second one is 3.15
So it’s first one
7 0
3 years ago
20 Points--Algebra 1
Darina [25.2K]

Answer:

y = 400(1.01)^t

Step-by-step explanation:

Firstly find the rate

(Take any balance for two years, e. g 400 and 404,412.12 and 416.24,etc to get simple interest)

408.04-404= 4.04

I=(P*R*T)/100

From which R=(100*I)/PT

R= 100*4.04/404*1

R=1%

Using compound interest formula

A =P(1+r/100)^n

where n is time

substituting each value

y = 400(1+1/100)^t

y= 400(1.01)^t

4 0
4 years ago
Use Euler’s method to estimate the value of y(20). Use a step size of ∆x = 5. Please fill out the remainder of the chart complet
crimeas [40]

Answer:

y(20)=14,322

Step-by-step explanation:

We need to solve the equation:

dy/dx=0.4xy

with initial point

y(0) = 2

with incerments

\Delta x=h=5

By Euler's method, we have:

y(x+h)=y(x)+h*f'(x,y)

We start with the initial point

y(5)=y(0)+5*f'(0,2)=2+5*(0.4*0*2)=2

And we continue until we reach the value for y(20)

y(10)=y(5)+5*f'(5,2)=2+5*(0.4*5*2)=2+20=22\\\\\\y(15)=y(10)+5*f'(10,22)=22+5*(0.4*10*22)=22+440=462\\\\\\y(20)=y(15)+5*f'(15,462)=462+5*(0.4*15*462)=462+13,860\\\\y(20)=14,322

4 0
3 years ago
Find the least<br>common denominator<br>3/5+4/7​
Levart [38]

Answer:

35

Step-by-step explanation:

<h3>5*1=5  5*2=10  5*3=15  5*4=20 5*5=25  5*6=30  <u>5*7=35</u></h3><h3>7*1=7  7*2=14  7*3=21  7*4=28  <u>7*5=35</u></h3>
5 0
3 years ago
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