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Klio2033 [76]
3 years ago
15

Check graphically whether the pair of equations 2x-y=1 and x+2y=3 is consistent if so solve them graphically

Mathematics
1 answer:
muminat3 years ago
6 0

Answer:

A(1,1)

Step-by-step explanation:

the system is :

2x-y=1

x+2y=3

so :

y = 2x-1  .....the line color : red

y= (-1/2)x+3/2......the line color : blue

the pair solution is the intersection point for this line : A(1 ; 1)

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What is the measure of angle 4? A triangle has angles 33 degrees, 75 degrees, 3. The exterior angle to angle 3 is 4. 42° 72° 108
Lady_Fox [76]

Answer:

108

Step-by-step explanation:

The exterior angle is equal to the sum of the opposite interior angles

<1 + <2 = <4

33 + 75 = <4

108 = <4

4 0
3 years ago
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Need help with question 13B i can not figure it out please help.
Vsevolod [243]
Short Answer 10
The tough part is the number of drinks.
Let the number of them be x
4.5 x + 3 + (10/100) * (4.5x + 3) + (7/100) * (4.5 x + 3) ≤  60

The tip is not included in the tax, and the tax does not include the tip. You can shorten this up quite a bit.
4.5 x + 3 + (10/100) * (4.5x + 3) + (7/100) * (4.5 x + 3) ≤  60
(1 + 10/100 + 7 /100) (4.5x + 3) ≤  60     Combine the tax, tip, scone and Lattes 

(1.17) * (4.5x + 3) ≤ 60                            Divide by 1.17
4.5x + 3 ≤ 60 / 1.17 
4.5x + 3 ≤ 51.28                                      Subtract 3
4.5x ≤ 48.28                                            Divide by 4.5
x ≤ 48.28 / 4.5
x ≤ 10.72 

Discussion.
There's a problem. He can't buy 0.72 of a Latte. He can only buy 10 of them. In this case we must round down so what happens if he buys 10 lattes? Does the price the taxes and the tip allow him to get another Latte? The answer should be no because then you would be 11 lattes and the tip and taxes would push you over 60 dollars. But be careful, sometimes things like this can alter you answer.. 

Answer: 10 <<<<
7 0
3 years ago
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vredina [299]

Answer:

g = h(e-10)

Step-by-step explanation:

You can multiply the whole equation by h to get g by itself.

5 0
2 years ago
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Which calculation will give the total surface area of the solid figure?
KengaRu [80]

Answer:

Step-by-step explanation:

6.

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Dylan is evaluating the expression 13 + 19 + 7 + 10. At one step in his work, Dylan rewrites the equation as 13 + 7 + 19 + 10. W
AlekseyPX

Answer:

Communicative Property

Step-by-step explanation:

The communicative property is basically just switching numbers around but still leading to the same answer, if you could see, both of the equations lead to the same answer, 49. Here is a chart to help you out.

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