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2 years ago

Solve for the variables.

Mathematics

1 answer:

likoan [24]1 year ago

8 0

Answer:

blue

Step-by-step explanation:

70 = 2m so m=35

360 - 70 - 70 = 220

220/2 = 110 = n

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Someone please explain how this in general form 2x – 3y – 7 = 0 is 2x - 3y + 10 = 0

Korvikt [17]

Answer:

Step-by-step explanation:

yes....the pair of linear equations has unique solution.....

2x + 3y - 7 = 0 ...... (i)

3x + 2y + 10 = 0 ....... (ii)

on comparing the equation i nd ii with a1x + b1y + c1 = 0

nd a2x + b2y + c2 = 0 reslectively......

a1 = 2 ; b1 = 3 ; c1 = -7

a2 = 3 ; b2 = 2 ; c2 = 10

here....its clear that......

a1 / a2 is not equal to b1 / b2

Therefore the given pair of linear equation have a unique solution........

7 0

1 year ago

A crate full of oranges weighed 15 lb.

Vlad [161]

What's the question ? You're just stating something..

5 0

2 years ago

What so the lines in this equation mean? | x - y |

dlinn [17]

absolute value- absolute value is the distance away from zero it cannot be negative

5 0

2 years ago

Read 2 more answers

Which is the value of this expression when j = negative 2 and k = negative 1?

Natalija [7]

Answer:

Option A.

Step-by-step explanation:

It is given that

$j=-2, k=-1$

The given expression is

$\left(\dfrac{jk^{-2}}{j^{-1}k^{-3}}\right)^3$

Substitute the given values in the above expression.

$\left(\dfrac{(-2)(-1)^{-2}}{(-2)^{-1}(-1)^{-3}}\right)^3$

$\Rightarrow \left(\dfrac{(-2)(1)}{\dfrac{1}{-2}(-1)}\right)^3$

$\Rightarrow \left(\dfrac{-2}{\dfrac{1}{2}}\right)^3$

$\Rightarrow \left(-4\right)^3$

$\Rightarrow -64$

Therefore, the correct option is A.

3 0

2 years ago

Read 2 more answers

The same bedroom furniture set costs $1,500 in both Florida and Alabama. The table gives a breakdown of the taxes someone would

vitfil [10]

Answer:

A: True

B, C and D: False

Step-by-step explanation:

We have a total sales tax for Alabama that is:

$T_A=4.225+1.375+3=8.6$

The total sales tax for Florida is:

$T_F=6.5+1+1.625=9.125$

The total sales tax is greater in Florida than in Alabama.

A. The furniture set is cheaper in Alabama, because the amount of sales tax will be lower by about $8. TRUE

The sales tax difference in this purchase can be calculated as:

$1500(T_F-T_A)=1500\left(\dfrac{9.125-8.6}{100}\right)=1500\cdot 0.00525=7.875\approx 8$

B. The furniture set is cheaper in Florida, because the amount of sales tax will be lower by about $10. FALSE (it is cheaper in Alabama)

C. The furniture set is cheaper in Alabama, because the amount of sales tax will be lower by $10. FALSE (the sale tax in Alabama is $129)

The amount of sales tax in Alabama is:

$ST_A=1500\cdot T_A=1500\cdot 0.086=129$

D. The furniture set costs the same in either state, because the amount of sales tax will be the same for the two locations. FALSE (it is not the same in both states).

7 0

2 years ago