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Ahat [919]
2 years ago
13

Please help! this is for math

Mathematics
1 answer:
kobusy [5.1K]2 years ago
8 0

Answer:

Step-by-step explanation:

x=17

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Solve the system of equations below.<br><br><br> A. <br><br> B. <br><br> C. <br><br> D.
timofeeve [1]

Answer:

  A.  (-7 -2)

Step-by-step explanation:

You can eliminate y by multiplying the first equation by 7 and subtracting 6 times the second equation:

  7(-3x +6y) -6(5x +7y) = 7(9) -6(-49)

  -21x +42y -30x -42y = 63 +294 . . . . eliminate parentheses

  -51x = 357 . . . . . . . . collect terms

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7 0
3 years ago
Help me with question pls i have 10 min timer .A farmer plants corn in 1/4 of his field he plants white corn 3/5 of the corn sec
Tema [17]

Answer:

3/20

Step-by-step explanation:

3/5*1/4=3/20

8 0
3 years ago
The difference when 7 less than a number is subtracted from twice the number is 12. What is the number?
hram777 [196]
Answer-

The number is 5

Explanation-

let the number be x
according to the condition
2x-(x-7)= 12
2x-x+7=12
x+7=12

x+7-7=12-7
x=5
therefore the required number is 5
3 0
3 years ago
Read 2 more answers
If 10 tickets to the movies cost $55, how much would 4 tickets cost?
11111nata11111 [884]

Answer:

55 \div 10 =   \: 5.5 \: dollars \\ 5.5 \times 4 = 22.0 \: dollars

5 0
3 years ago
1. Oblicz:
dem82 [27]

Step-by-step explanation:

1. Oblicz:

a) Liczbę o 15% mniejszą od 60

b) Liczbę, której 15% stanowi 60

c) Jakim procentem 60 jest 15

d) O ile %większa jest 60 od 15

2. Kasia kupiła buty na wyprzedaży przecenione o 20%. Ich cena początkowa to 180 zł. W domu sprzedała je siostrze zarabiając na tym 10% wartości. Ile zapłaciła Kasi siostra za buty?

3. Liczba, którą powiększymy o 20% daje nam 30. Jaka to była liczba?

4. Za dwie książki zapłacono 42 zł. Ile kosztuje droższa z nich, jeżeli jedna jest o 25 % tańsza od drugiej?

5 0
2 years ago
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