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Likurg_2 [28]
2 years ago
15

(NO LINKS)

Mathematics
1 answer:
Harlamova29_29 [7]2 years ago
6 0

Answer:

x = 5 pens

y = 7 pencils

Step-by-step explanation:

let

x = the number of pens

y = the number of pencils

Anthony spent $2.80 to buy a total of 12 pens and pencils

0.35x + 0.15y = 2.80

x + y = 12

by solving the system of equations

0.35x + 0.15y = 2.80

x + y = 12

we find

x = 5 pens

y = 7 pencils

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Olenka [21]
D = \sqrt{(x_{2}- x_{1})^{2}+ (y_{2} -y_{1})^{2}}
D = √(11-19)²+(12-4)²
D = √(-8)²+(8)²
D = √64+64
D = √128
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8 0
2 years ago
How can we factorise the expression: 2x^6+17x^3+8?​
LekaFEV [45]

Answer:

(a + 2)( {a}^{2}  - 2a +  4 )(2 {x}^{ 3}  + 1)

Step-by-step explanation:

2x^6+17x^3+8 \\  = 2x^6+16x^3 +  {x}^{3} +8 \\  =  2{x}^{3} ( {x}^{3}  + 8) + 1( {x}^{3}  + 8) \\  = ( {x}^{3}  + 8)(2 {x}^{ 3}  + 1) \\  = ( {x}^{3}  +  {2}^{3} )(2 {x}^{ 3}  + 1)  \\  = (a + 2)( {a}^{2}  - 2a +  {2}^{2} )(2 {x}^{ 3}  + 1)   \\  = (a + 2)( {a}^{2}  - 2a +  4 )(2 {x}^{ 3}  + 1)  \\

7 0
3 years ago
Four cups are placed upturned on the counter. each cup has the same number of sweets and a declaration about the number of sweet
Mumz [18]

Answer:

6?    i hope this helps some!   :)

Step-by-step explanation:

each has 6 in between the number

5 or 6 p there is a possibility of there being 6

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4 0
3 years ago
Y is a number such that 6y = 12
nataly862011 [7]
6y = 12
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:)
5 0
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Please Hurry). Question: What is the value of x? (Will Mark Brainliest) Please only answer if you know it.​
aleksklad [387]

Answer:

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Step-by-step explanation:

The sum for a 7-sided interior polygon is 900

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900-789=111

3 0
2 years ago
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