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Maurinko [17]
3 years ago
10

Solve using elimination y = 5x+4 y = 2x+7 Show work plz

Mathematics
1 answer:
Gre4nikov [31]3 years ago
3 0

Answer and Step-by-step explanation:

5x + 4

2x + 7

Multiply 5x + 4 by 2, and 2x + 7 by 5.

   10x + 8

-   10x + 35

_________

<u>-27 is the answer</u>

<u></u>

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<u></u>

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<em><u>#teamtrees #PAW (Plant And Water)</u></em>

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There are 36 ribbons of which 1/5 are yellow, 7/15 are pink and the remaining ribbons are
Kay [80]

Step-by-step explanation:

Let there be x blue ribbons

\therefore \:  \frac{1}{5}  +  \frac{7}{15}  + x = 36 \\   \therefore \:  \frac{1 \times 3}{5 \times 3}  +  \frac{7}{15}  + x = 36 \\ \therefore \:  \frac{3}{15}  +  \frac{7}{15}  + x = 36 \\ \therefore \:  \frac{3 + 7}{15}   + x = 36 \\ \therefore \:  \frac{10}{15}   + x = 36 \\ \therefore \: x = 36 -  \frac{10}{15} \\ \therefore \: x =  \frac{36 \times 15 - 10}{15} \\ \therefore \: x =  \frac{540 - 10}{15} \\ \therefore \: x =  \frac{530}{15} \\ \therefore \: x =  35\frac{5}{15}  \\ \\  \therefore \: x =  35\frac{1}{3} \: are \: blue.  \\

5 0
3 years ago
In a group of 31 students, 7 study both Art and Biology.
ale4655 [162]

Answer:

it is 358

Step-by-step explanation:

Hope this helped have an amazing day!

7 0
3 years ago
Answer please ...................................
jok3333 [9.3K]

Answer:

#1. 8.27

#2. 36

#3. 22

#4. 7.25

Step-by-step explanation:

#1: 60÷11=5.45  ----> 5.45×16=<u>87.27</u> <This is a non-terminating decimal>

#2: 60÷5= 12 ----> 12×3= <u>36</u>

<u></u>

#3: Games- 35    Won- 14    Lost- 21

      In 1 Game  Manchester won =   14/35  =  2/5 games in 54 Game  Manchester won =  54 x  2/5   games

= 108 / 5

= 21.6

<u>= 22</u>

<u></u>

#4: 6 : 91 ⇒ n : 110

     6(110) ⇒ 91(n)

     660 ⇒ 91n

     660/91 ⇒ n

     <u>7.25=n</u>

<u></u>

6 0
2 years ago
Year Cash Flow (A) Cash Flow (B)
jeka57 [31]

Answer:

2.46

3.63

195,929.85

236,551.79

35.39

34.31

B

Step-by-step explanation:

Explaining it is kind of akward, but I can explain if you want.

Not too sure about the last one, but the rest I feel good about

4 0
3 years ago
It take Sophia 1/5 weeks to read one book and Sophia reads for 1/6 weeks how many books where she read
ladessa [460]

Sophia has not even completed 1 book. She has managed to complete 83% of the book.

<u>Explanation:</u>

Given:

Time taken to read one book = 1/5

Total weeks for which sophia read = 1/6

Number of books, z = ?

Total weeks = z X time taken to read one book

\frac{1}{6}  = z X \frac{1}{5} \\\\z = \frac{5}{6} \\\\z = 0.83

Therefore, sophia has not even completed 1 book. She has managed to complete 83% of the book.

3 0
3 years ago
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