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Otrada [13]
4 years ago
11

Find the solution of this system of equations.

Mathematics
1 answer:
Brrunno [24]4 years ago
8 0

Answer:

x=-11, y=0. (-11, 0).

Step-by-step explanation:

x-12y=-11

x-y=-11

-------------

x=y+(-11)

x=y-11

y-11-12y=-11

-11y=-11+11

-11y=0

y=0/-11=0

x-0=-11

x=-11+0=-11

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You are running an art class and you need to buy supplies. Each student will need an easel which costs $15.49, a set of brushes
valina [46]

Answer:

$46.88 per student

Step-by-step explanation:

15.49+9.89+21.5 which is 46.88, so $46.88 per sudent.

Hope this helps plz hit the crown :D

8 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
Find the area! Please help me
Alexxx [7]

Answer:

Blue Box / First answer choice

Step-by-step explanation:

Plug in d1:8.6 and d2:10.2 into d1 x d2/2 to find the area.

d1 x d2/2

8.6 x 10.2/2

87.72/2

Area=43.86

6 0
3 years ago
Why is 3x 1/10 less than 3x10
raketka [301]
One is a fraction the other is a whole number
7 0
4 years ago
Read 2 more answers
Which answer choice do I choose?
Ratling [72]
The second answer is correct because in order for the ordered pairs to represent a function, there can only be 1 y value for every x value. The second option has 2 different y values for x = 3 so it is not a function.
The answer is the second option.
3 0
3 years ago
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