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kherson [118]
3 years ago
6

Out of the answers 6 -1 13 and 5 which is the answer for 1 + -5

Mathematics
1 answer:
Anvisha [2.4K]3 years ago
8 0
I don’t understand the first part but 1+-5= -4
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2 years ago
A sells and article to B at a profit of 10%,B sells it to C for rs577.50 at a profit of 5%.How much did it cost for A?
densk [106]

Answer:  $500

<u>Step-by-step explanation:</u>

A sells to B at a profit of 10%:    1.10A = B

B sells to C for $577.50 at a profit of 5%:    1.05B = 577.50

Substitute B with 1.10A in the second equation:

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7 0
3 years ago
2x + 5y = -3<br> 2x + 2y = 6
oee [108]

Answer:

(6, - 3 )

Step-by-step explanation:

Given the 2 equations

2x + 5y = - 3 → (1)

2x + 2y = 6 → (2)

Subtracting (1) from (2) term by term will eliminate the x- term

(2x - 2x) + (2y - 5y) = 6 - (- 3), that is

- 3y = 9 ( divide both sides by - 3 )

y = - 3

Substitute y = - 3 in either of the 2 equations and solve for x

Substituting y = - 3 in (1)

2x + 5(- 3) = - 3

2x - 15 = - 3 ( add 15 to both sides )

2x = 12 ( divide both sides by 2 )

x = 6

Solution is (6, - 3 )

8 0
3 years ago
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The width of the figure below is 5 units. The perimeter of the figure is 18 units. What is the length of the figure in units?
marishachu [46]

if the figures perimeter is 18 units, and the width of the figure is 5 units. I am guessing the figure is a rectangle


where the width is 5 units, and 2 of the sides have 2 be the same 2 be a rectangle, than the width on each side is 10 units all together


18-10= 8


if the figure is a rectangle then that means there are 2 sides left of equal length so if we divide our current number (8) by 2 then we will have the length of each side (4)


8 divided by 2= 4


width= 5

length= 4

3 0
3 years ago
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