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True [87]
2 years ago
6

Angelica and genesis are trying to find the difference of 7-(-5). Genesis thinks the difference is -12. Angelica thinks the diff

erence is +12. Who is correct? Explain.
Mathematics
1 answer:
Elena-2011 [213]2 years ago
5 0

Answer:

12

Step-by-step explanation:

7-(-5) = 7+5

7+5 = 12

7-(-5) = 12

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I don't know how to do these sort of problems... Can someone help me out?
VLD [36.1K]
180=76+4x
180-76=4x
104=4x
104/4=x
26=x
Measurement A= 26
6 0
3 years ago
(I need these answered asap and with work and explanation included)
erik [133]

Answer:

blue marbles - 2/9. red marbles - 3/9 = 1/3 clear marbles - 4/9. Davis got a 2/9 chance and Tessa got a 2/8 or 1/4 chance. I don't know about the last question. it might be 5/9 but I don't know sorry.

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2 years ago
80
vladimir1956 [14]

Answer:

Step-by-step explanation:

D is the answer

7 0
3 years ago
Read 2 more answers
Cynthia Besch wants to buy a rug for a room that is 1919 ft wide and 2727 ft long. She wants to leave a uniform strip of floor a
yulyashka [42]

Answer:

The dimension of the rug would be 17 ft × 9 ft.

Step-by-step explanation:

Given

length of the room = 27 ft.

width of the room = 19 ft.

suppose, she leaves a uniform strip of x ft. around the rug.

So,

The length of rug = (27-2x)ft.

Width of rug= (19-2x)ft.

∴ Area of the rug= length×width

                            =  (27-2x)(19-2x)

                            =  513-54x-38x+4x^2

                            =   513-92x+4x^2

According to the question,

513-92x+4x^2=153

513-92x+4x^2-153=0        ( subtract 153 both sides)

4x^2-92x+360=0

4(x^2-23x+90)=0

x^2-23x+90=0

x^2-(18+5)x+90=0            ( Middle term splitting)

x^2-18x-5x+90=0

x(x-18)-5(x-18)=0

(x-5)(x-18)=0

x-5=0 or x-18=0             ( zero product property)

x=5 or x=18

if x=18, dimension would be negative  ( Not possible)

Thus, x= 5

Hence,

length of rug= 27-10=17 ft.

width of rug= 19-10=9 ft.

8 0
3 years ago
What is the product of the following equation??
Whitepunk [10]

Answer:

B

Step-by-step explanation:

1.(5x^3)(xy^4 -2x^3y)

2.5x^4y^4 -10x^6y

7 0
2 years ago
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