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3 years ago

What is the solution to this system of equations?

Mathematics

2 answers:

Arlecino [84]3 years ago

8 0

The answer is C.(4,2)

Otrada [13]3 years ago

7 0

Answer:

the answer to this would be C.

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Vinvika [58]

Answer:

Step-by-step explanation:

we can solve:

Solve m-n= 5 for m.

From m - n = 5

we have m - n + n = 5 + n

or m = 5 + n

so the answer is a)

b) m = -5 -

c) m = -5+n

d) m = 5 -

2. Solve -2 = 4r + s for s.

From -2 = 4r + s

we have s + 4r = -2

s + 4r - 4r = - 2 - 4r

s = -2 - 4r

so the answer is s = -2 - 4r

a) s = -2 +41

b) s = 2 - 4r

d) s = 2 + 4r

3 0

3 years ago

Kate bought 5 pounds of hamburger and 2 pounds of hotdogs and paid $28.50. Eric bought half the amount of hamburger and a fourth

lapo4ka [179]

Answer:

hamburgers - $4.30 hotdogs- $3.50

5 0

2 years ago

Helpppppppppppppppppppp mathhhhhhhhh

sp2606 [1]

2) angle T Congruent to angle D; 3)angle s and angle u

7 0

3 years ago

Simplify the expression: 2( 5 t + J) + 3( 2t + 4 J )

Irina-Kira [14]

Answer:

16t + 14J

Step-by-step explanation:

1) First, you have to multiply the numbers

New Expression: 10t + 2J + 6t + 12J

2) Now, you have to find the like terms and add them together

New Expression: 16t + 14J

Hope this helps!

7 0

3 years ago

David and Karen are building a treehouse in the shape of a rectangular prism for their daughter.If the treehouse is going to 5 f

Serga [27]

The space left inside the tree is 300 cubic feet.

David and Karen have to paint 275 square feet on the outside.

Explanation:

It is given that the length of the tree house is 7.5 feet

The width of the tree house is 8 feet

The height of the tree house is 5 feet

The tree house is in the shape of a rectangular prism.

The volume of the rectangular prism is given by

$\text {Volume}=\text {length } \times \text {width} \times \text {height}$

Substituting the values, we have,

$Volume$=7.5 \times 8 \times 5$\\Volume $=300$$

Thus, the volume of the rectangular prism is 300 cubic feet

Hence, the space left inside the tree is 300 cubic feet.

The area they have to paint on the outside can be determined using the formula for surface area of the prism .

$Area=2(w l+h l+h w)$

Substituting the values, we get,

$Area=2[(8*7.5)+(5*7.5)+(5*8)]$

Multiplying the terms within the bracket, we get,

$Area=2(60+37.5+40)$

Adding the terms, we have,

$Area=2 \times 137.5$

Multiplying, we get,

$Area =275$

Thus, David and Karen have to paint 275 square feet on the outside.

6 0

3 years ago