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2 years ago

Pls help me with this math question i beg

Mathematics

1 answer:

velikii [3]2 years ago

3 0

Answer:

All angles in a quadrilateral = 360°

b =?

b = 360 - (128 + 61 + 57)

b = 360 - 246

b = 114°

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X-4y=7 -6x-3y=12 how do i solve by substitution

Dafna1 [17]

Answer:

x = 15

y = 2

Step-by-step explanation:

X-4y=7 | ×6 |

-6x-3y=12 | ×1 |

6x - 24y = 42

-6x - 3y = 12

___________+

27y = 54

y = 54/27

y = 2

x - 4y = 7

x - 4(2) = 7

x - 8 = 7

x = 7 + 8

x = 15

3 0

2 years ago

<img src="https://tex.z-dn.net/?f=y%20%3D%5Cfrac%7B1%7D%7B2%7D%20-%201" id="TexFormula1" title="y =\frac{1}{2} - 1" alt="y =\fra

aleksley [76]

The answer would be -0.5.

4 0

2 years ago

Read 2 more answers

A store has clearance items that have been marked down by 25%. They are having a sale, advertising an additional 40% off clearan

Hatshy [7]

Answer: He would pay 45% of the original price.

Step-by-step explanation:

Since we have given that

Let the original price of item be 'x'

Rate mark down by 25%

Amount of marked down would be

$\dfrac{25}{100}\times x\\\\=0.25x$

Amount after marked down becomes

$x-0.25x\\\\=0.75x$

Additional clearance items by 40% off

Amount of additional off is given by

$\dfrac{40}{100}\times 0.75x\\\\=0.4\times 0.75x\\\\=0.3x$

After additional off, the amount becomes,

$0.75x-0.3x\\\\=0.45x$

Hence, he would pay 45% of the original price.

5 0

2 years ago

Help answer.............

kirill [66]

C(0,4)

B to C is (+1,+4)
so A to D is also (+1,+4)

3 0

2 years ago

Pls somone help me plssssss

Alex787 [66]

Answer:

Step-by-step explanation:

it LOST 950, which make the integer negative. in the second part of the answer, look for "earn", because to undo loss, you must gain.

Happy new years!

7 0

2 years ago

Read 2 more answers

Pls help me with this math question i beg ​

Pls help me with this math question i beg