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Nadusha1986 [10]
3 years ago
6

Someone please help me! thank you so much

Mathematics
1 answer:
lina2011 [118]3 years ago
4 0
Hello,

I believe the answer would be 5. Let me explain.

For the equation f(x) = -2x +3, I plugged in "-1" from the ordered pair into the equation as "x".

f(x) = -2 (-1) +3, and that would simplify to f(x) = 5,

so then y = 5.

Hope this helps!

May
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7 pairs of stockings cost as much as 3 T-shirts, and a trousers as much as 1 T-shirt and 2 pairs of stockings. How many trousers
netineya [11]

Answer:

number of trousers=14

numbers of pairs of stockings=71

Step-by-step explanation:

Pairs of stockings: x

T shirt: y

Trouseres: z

7x=3y

1z=1y+2×

__________________________________________

m: number of trousers

m*z=26y

m*(y+2x)=26y

m*(y+2(3y/7))=26y

m=26y/(y+2(3y/7))

m=14

You need to buy 14 trousers that represents the equivalent of 26 T-shirts.

__________________________________________

k:pairs of stockings

k*x=10y+11z

k*x=10(7x/3)+11(y+2x)

k*x=10(7x/3)+11((7x/3)+2x)

k=71

You need to buy 71 pairs of stockings with an amount equal to the price of 10 T-shirts and 11 trousers

3 0
2 years ago
Read 2 more answers
(6,8),(-1,12)the two given points are connected to form the diagonal of a rectangle. Find the perimeter of the rectangle
vampirchik [111]

Answer:

22

Step-by-step explanation:

The problem can be solved geometrically. By this way, the solution is going to be easy, as well.

We can see from the attached graph that the coordinates are the vertexes.

Considering a unit distance, we can find that the width of this rectangle is:

4 = 12 - 8

and the length is:

7 = 6-(-1)

Then, the perimeter is P = (4+7)*2 = 22


3 0
4 years ago
ABCD is a quadilatoral, the prove AB+BC+CD+DA is grater than AC+BD? ​
konstantin123 [22]

Answer:

yes it's greater then anything

Step-by-step explanation:

really just look it up or ask someone

4 0
3 years ago
What's the answer to this problem?<br><img src="https://tex.z-dn.net/?f=5x%20%2B%2035%20%3D%2045" id="TexFormula1" title="5x + 3
V125BC [204]

Answer:

5x+35=45

5x=45-35

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6 0
3 years ago
REASONING If the solution set of a polynomial inequality is (−3, 3), what will be the solution set if the inequality symbol is r
Arte-miy333 [17]

Answer:  The new solution set is  (-\infty,-3)\cup(3,\infty).

Step-by-step explanation:  Given that the solution set of a polynomial inequality is (-3, 3).

We are to find the solution set if the inequality symbol is reversed.

Let x denotes the unknown variable in the original inequality.

Then, according to the given information, we can write

x\in (-3,3)\\\\\Rightarrow -3

Now, if we reverse the sign of the inequality, then the value of x will be

x3.

This new solution set can be written as

x\in(-\infty,-3)\cup(3,\infty).

Thus, the new solution set is  (-\infty,-3)\cup(3,\infty).

3 0
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