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Nadya [2.5K]
3 years ago
13

This is due today can anyone help ?

Mathematics
1 answer:
Lorico [155]3 years ago
7 0

Answer:

C

Step-by-step explanation:

you need to start by plugging in -2x+4 every were it says y then solve for x when you have found x plug it into one of the equations and solve for y

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waheda purchased 8 textbooks each costing rupees 12 and 4 story books each question rupees 9 find the ratio of amounts she spent
lyudmila [28]

Answer:

8/3 or 2(2/3) Textbooks to storybooks

Step-by-step explanation:

Textbooks:  (8 books)*(12 rupees/book) = 96 rupees

Storybooks:  (4 books)*(9 rupees/book) = 36 rupees

Total is 132 rupees

Ratio:  Textbook/Storybook = 96/36

96/36 = 8/3 or 2(2/3) Textbooks to storybooks

8 0
2 years ago
The graph shows a proportional relationship between the number of kilometers traveled by a bicycle (y) and the number of minutes
tankabanditka [31]
The rate is 0.30 km/min. The rate in linear functions, which must be assumed with only two given points can be traced to calculating the slope (m) of the line or rate.  
m= (y2-y1) / (x2-x1)  
with our two given points (x,y) we fill out the equation as:  
M= (12 - 0) / (40 - 0) or M = 12/40 = 0.3  
keeping our units intact 12 km / 40 min so the answer is 0.3 km/min
5 0
4 years ago
Read 2 more answers
The perimeter of a pool table is 30 feet. The table is twice as long as it is wide. What is the length of the pool table?
olga55 [171]

So, 30 is the perimeter. We are told the table is twice as long as it is wide.

So, we have think of 2 numbers, one being twice as big than the other. So, it is a rectangle The two number represents the length and the width. To find the perimeter we add all the lengths and the widths. Since the pool table is a rectangle we have two lengths and two widths.

So,

the tow numbers be 10 and 5. 5 is half of 10 and, when multiplied by 2 it is 10. So just to make sure the numbers 5 and 10 work out lets do a calculation.

So,

10+5+10+5 = 30feet. This proves that the sides are these two numbers.  

8 0
3 years ago
The centroid of a triangle is located 2/3 of the distance from each vertex to the midpoint of the opposite side. Question 5 opti
laila [671]

Answer:

true

Step-by-step explanation:

let the vertex of the triangle be A(x1, y1), B(x2, y2), C(x3, y3) .

the centroid of the triangle will be (\frac{x1+x2+x3}{3}, \frac{y1, y2, y3}{3}).

cordinate of mid point of AB (\frac{x1+x2}{2},\frac{y1+y2}{2})

3 0
3 years ago
A company sells 100 - 0.5x shirts
xeze [42]

Answer:

$100

Step-by-step explanation:

We are given that

Company sells shirts=100-0.5x

Charge per shirt=x

We have to find the  charge per shirt in order to make $5000 on shirt sales.

According to question

x(100-0.5x)=5000

100x-0.5x^2=5000

0.5x^2-100x+5000=0

5x^2-1000x+50000=0

x^2-200x+10000=0

x^2-2\times x\times 100+(100)^2=0

(x-100)^2=0

x=100,100

Hence, charge per shirt=$100

6 0
3 years ago
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