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KATRIN_1 [288]
2 years ago
13

Using Colored Counters, where yellow counters are positive and red counters are negative, model 5 (use 7 chips)

Mathematics
1 answer:
vova2212 [387]2 years ago
8 0

Answer:

Step-by-step explanation:

??

You might be interested in
Two men walk at rates of 6 miles per hour and 10 miles per hour, respectively. Simultaneously, they started from the same place
alina1380 [7]

The time taken by the two men will be equal to 26 hours

<h3>What is speed?</h3>

The speed is defined as the ratio of the time distance traveled by the body to the time taken by the body to cover the distance.

here two men are walking at different speeds like

v₁=6 miles per hour

v₂=10 miles per hour

The time taken by them to separated by the distance of 100 miles each so that both of them separated by the distance of 200 miles.

t₁= {100}/{6}=16.66 hours

t₂= {100}/{10}=10 hours

total time taken will be

t₁+t₂=16.66+10=26.66 hours

To know more about Speed follow

brainly.com/question/6504879

#SPJ1

5 0
3 years ago
Alexa is $33,000 in her first year of teaching and earns a 4% increase in each successive year. Write a geometric series formula
sergeinik [125]

Answer:

Step-by-step explanation:

Alexa earns $33,000 in her first year of teaching and earns a 4% increase in each successive year. This means that for each year, her income is 104% of the previous year. So the rate of increase is 104/100 = 1.04. This rate is in geometric progression. The formula for the sum of n terms of a geometric sequence is expressed as

Sn = a(r^n - 1)/r-1

Where

Sn is the nth term

a is the first term

n is the number of terms.

r is the rate or common ratio

From the information given,

a = 33000

r = 1.04

The formula for Alexis total earning over n years will be

Sn = 33000(1.04^n - 1)/(1.04 - 1)

Her earnings for the next 15 years would be

S15 = 33000(1.04^15 - 1)/(1.04 - 1)

S15 = 33000(0.8009) / 0.04

S15 = $668167.50

5 0
4 years ago
Fill in the blank.<br> milliliters = 42 liters
Umnica [9.8K]

Answer:

42 liters= 42000 milliliters

4 0
3 years ago
Read 2 more answers
Rewrite square root of -49-4
Nataliya [291]

Answer:

\sqrt{53i}

Step-by-step explanation:

We need to find \sqrt{-49-4}

We know that √-1 = i

Adding -49 and -4 and solving

\sqrt{-49-4}\\\sqrt{-53}\\\sqrt{53i}

Since 53 is not a perfect square so our answer is:

\sqrt{53i}

7 0
3 years ago
I need answers please l don’t understand please show working to help me please
Ira Lisetskai [31]

Answer:

1)

10t=8+9t+5

10t=9t+13

10t-9t=13

t=13

2)

-12=3x

-4=x

x=-4

3)

-5+3x=x+9

3x=x+9+5

3x=x+14

3x-x=14

2x=14

\frac{2x}{2}=\frac{14}{2}

x=7

4)

10a=-15+7a

10a-7a=-15

3a=-15

\frac{3a}{3}=\frac{-15}{3}

a=-5

5)

7x=6x+27

7x-6x=x

x=27

6)

-3x-6=-5x+10

-3x=-5x+16

-3x+5x=16

2x=16

\frac{2x}{2}=\frac{16}{2}

x=8

7)

2y-4=10y+12

-4=8y+12

-4-12=8y

-16=8y

\frac{8y}{8}=\frac{-16}{8}

y=-2

8)

-9a+1=6-4a

1=6+5a

1-6=5a

-5=5a

\frac{5a}{5}=\frac{-5}{5}

a=-1

Hope this helps!

7 0
3 years ago
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