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tamaranim1 [39]
3 years ago
9

X−3y=1x+y=9

Mathematics
2 answers:
Brrunno [24]3 years ago
7 0

I got this same question on a test, the answer is A.

Ksenya-84 [330]3 years ago
5 0

Answer:

Substitution Property of Equality

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Katie has a job planting shrubs beside the highway. She needs to plant 500 shrubs in a week. So far, She has planted this many:
ladessa [460]

ANSWER: Katie Must Plant 133 Shrubs On Friday.

First, We Know That Katie Needs To Plant 500 Shrubs In A Week. So Then, We Add Up 104+87+92+84 And When We Add Those Numbers Up, We Get How Many Shrubs She Has Planted On Monday Tuesday Wednesday And Thursday. To Find Out How Many Plants She Needs To Plant On Friday, Subtract 367 From 500 And You Get 133.

3 0
3 years ago
The number of fish in a lake is decreasing by 400 every year, as described by the function below.
SVEN [57.7K]

The number of fish in the lake follows an arithmetic sequence

The number of fish in the lake the second year is 7800, and it is represented by f(2)  

 

The model of the number of fish is given as:

\mathbf{f(n + 1) = f(n) - 400}

Such that:

\mathbf{f(1) = 8200}

Set n = 1, to calculate f(2)

Substitute 1 for n in the given model \mathbf{f(n + 1) = f(n) - 400}

So, we have:

\mathbf{f(n + 1) = f(n) - 400}

\mathbf{f(1 + 1) = f(1) - 400}

Simplify, by adding 1 and 1

\mathbf{f(2) = f(1) - 400}

Substitute 8200 for f(1)

\mathbf{f(2) = 8200 - 400}

Subtract 400 from 8200

\mathbf{f(2) = 7800}

Hence, the value of f(2) is 7800

Read more about arithmetic sequence at:

brainly.com/question/25759461

8 0
3 years ago
Read 2 more answers
12 divided by (2 + 2/3) ^2<br><br> Help asap!
sergey [27]

Answer:

1.6875 = 27/16= 1 11/16

Step-by-step explanation in png below.

6 0
3 years ago
PLZZZZZZZZZZZZZZZZ HELP ME !!!!!!!!!!!!!!!!!!!!!!!!!!!
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Answer:

(a.) On line 4, Travis subtracted $188 from $180 and got a positive answer. The difference  should be -$8.00.

(b.) <em>(work provided in picture)</em> To get his account back to 0, Travis needs to deposit $21.80 or more to avoid another  overdraft fee.

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4 years ago
Which expression can be used to convert 100 USD to Japanese yen?
Blizzard [7]
Not quite sure what you’re asking for but i can offer a couple(and by that i mean two) “answers” depending on what you need.

Usd>Yen~1->.009
Gym B costs 50%less

If the question is trying to compare hours to usd then Gym A is the most accurate representation of USD to Yen

7 0
3 years ago
Read 2 more answers
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