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Marizza181 [45]
3 years ago
13

2. What is the sum of the following: 3¾ + 1½? A. 4½ B. 7½ C. 5¼ D. 6

Mathematics
2 answers:
quester [9]3 years ago
5 0
The answer is C. 51/4. Hope I helped!
Radda [10]3 years ago
4 0
5 1/4, because 3+1= 4 and 3/4+1/2= 1 1/4 and 4+1 1/4= 5 1/4
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Last question! Please show work. Really need to get this done in 1 hour
Sav [38]

Answer:

x=1; y=2; z=3

Step-by-step explanation:

Rearrange for convince:

2y-4z+6x = -2

-4y+2z-3x=-5

-6y+3z+4x=1

Now we take to pairs and eliminate the same var.:

2y-4z+6x = -2 *2

-4y+2z-3x=-5

and

-4y+2z-3x=-5 *-3

-6y+3z+4x=1. *2

We get:

4y-8z+12y=-4

-4y+2z-3x=-5

= -6z+9x=-9

and

12y-6x+9x=15

-12y+6x+8x=2

= 17x=17

We now know x = 1, so z is:

-6z+9=-9

-6z=-18

z=3

Let’s grab the first formula and find y:

6+2y-12=-2

6+2y=10

2y=4

y = 2

7 0
2 years ago
Please HELP!!!!
dedylja [7]
Absolute value equations have more than one solution because when the answer is in abs. value, it is positive, so there could be a negative answer and it would still be positive. For example |-5|=5 and |5|=5 as well. 
4+|2x|=-1 would have no solution because you cannot have the equation equal a negative since the 2x is in absolute value. 
8 0
3 years ago
I’m crying helppppppppppppppppppppppp what is 5/10 times 2/4 show step by step and simplified
mamaluj [8]
Simplify both to 1/2 because both numerators are half of their denominators. Then multiply straight across to 1/4.
4 0
2 years ago
Tangent line i think please help me find x
Alex

Answer:

x= 6.5 cm

Step-by-step explanation:

When a tangent line touches the circle, it forms a right angle triangle at that point

Apply the Pythagorean relationship in this case

Given that the height is = 20.2 cm = b

The hypotenuse is = c= x+14.7 cm

General formulae is;

a² +b² =c²

x² + 20.2² =( x+ 14.7)²

x² + 408.04= x² +14.7x+14.7x+216.09

x² + 408.04= x² + 29.4 x +216.09.........................collect like terms

x²-x² + 408.04-216.09= 29.4x

191.95= 29.4x-------------------------------divide by 29.4 t0 get x

191.95/29.4 =x

x=6.5 cm

6 0
3 years ago
Express 5/7 as a decimal. (Round to the nearest thousandths place)
Georgia [21]

Answer:

rounding to the thousandths place, the answer is 0.714

Step-by-step explanation:

This can easily be looked up on google

5 0
3 years ago
Read 2 more answers
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