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sergeinik [125]
3 years ago
5

Fifteen girls left a mixed group of boys and girls. There remained two boys for each girl. After this, 45 boys leave the group,

and there were 5 girls for each boy. Determine the number of girls in the
original group.
Mathematics
1 answer:
statuscvo [17]3 years ago
5 0
Sorry i cant answer this way too hard for me
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Determine the point that lies on the equation y = -5x - 3.
scZoUnD [109]

Answer:

(4, -23)

Step-by-step explanation:

We are given;

  • The equation, y = -5x -3

We are needed to determine the point that lies on the equation;

  • We need to know that for a point to be lying on the equation it must satisfy the equation.
  • This means when we use the value of x in the equation we should get the exact value of y of the given point;
  • Therefore, in this case;

Point (4, -23)

Replacing x = 4 in the equation;

y = -5(4) - 3

 = -23

Therefore, the point lies on the equation as the point satisfies the equation

Thus, the required point is (4, -23)

8 0
3 years ago
2 times 2 plus 10 plus 200 plus 56
serious [3.7K]
2×2 + 10 + 200 + 56
The order of operations requires the multiplication be done first.
= 4 + 10 + 200 + 56
The addition is done left to right.
= 14 + 200 + 56
= 214 + 56
= 270
5 0
3 years ago
Read 2 more answers
Farmer Jan is a vegetable farmer who divides his field between broccoli crops and spinach crops. Last year, he grew 6 tons of br
ankoles [38]

Answer:

There is no unique solution to this problem.

There are infinitely many solutions to this problem.

Step-by-step explanation:

Let B denotes broccoli crop

Let S denotes spinach crop

Last year, he grew 6 tons of broccoli per acre and 9 tons of spinach per acre, for a total of 93 tons of vegetables.

Mathematically,

6B + 9S = 93        eq. 1

This year, he grew 2 tons of broccoli per acre and 3 tons of spinach per acre, for a total of 31 tons of vegetables.

Mathematically,

2B + 3S = 31

2B = 31 -  3S

B = (31 -  3S)/2      eq. 2

Substitute eq. 2 into eq. 1

6B + 9S = 93

6[(31 -  3S)/2] + 9S = 93

3(31 -  3S) + 9S = 93

93 - 9S + 9S = 93

- 9S + 9S = 93 - 93

0 = 0

Therefore, there is no unique solution to this problem.

Which means that there are infinitely many solutions to this problem.

5 0
3 years ago
what's the slope? simplify your answer and write it as a proper fraction,improper fraction or integer ​
dybincka [34]

Answer:

\frac{1}{2}

Step-by-step explanation:

In this graph, when you count rise and run, rise would be 1 and run would be 2. Because slope is also known as rate of change and rate of change is also known as rise over run, the slope will be 1 over 2.

8 0
3 years ago
For a house call, a veterinarian charges $70, plus $40 an hour. Write an equation that represents the total fee y (in dollars) t
Svet_ta [14]
Y=40x+70

hope this helps
6 0
3 years ago
Read 2 more answers
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