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Neko [114]
2 years ago
15

Suppose that b and c are points on the number line . if bc = 10 and b lies at 3 , where could c be located?

Mathematics
1 answer:
katrin [286]2 years ago
7 0
C would be located around 3.3

Bc=10 meaning b x c= 10
B lies at 3
(Opposite of time is division as you probably already know) so 10/3 is 3.3

(I’m sorry if this wrong but hope it is not and you understand it)
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Simplify: 2x + 9 - 17x - 15 -x​
Ostrovityanka [42]

Answer:

1

Step-by-step explanation:

2x + 9 - 17x - 15 - x =????

2x - 17x - x + 9 - 15 = 0

- 15x - x - 16 = 0

- 16x - 16 =0

-16x = 16

x = 16 / - 16

x = 1

6 0
3 years ago
Which of the following is a solution of the system 2x + y = 9 and 3x + 5y = 19.​
Nezavi [6.7K]

2x+y=9

3x+5y=19

I will do this problem in 2 ways. I.)Substitution II.)Elimination

Solution I.) Substitution

We can subtract 2x from both sides in the first equation.

y=9-2x

Now we can substitute the y in the second equation with 9-2x

3x+5(9-2x)=19

-7x+45=19

-7x=-26

x=26/7

y=9-2(26/7)=11/7

Solution II.)Elimination

We can multiply both side of first equation by 5 to get a 5y in both equations.

10x+5y=45

Now because both are positive 5y we just need to do simple subtraction of the 2 equation, each side respectively.

(10x+5y)-(3x+5y)=45-19

7x=26

x=26/7

2*26/7+y=9

y=11/7

Ultimately you get the same answer, both are viable methods, some problems are faster with one method but I recommend mastering both since they are very useful.

4 0
2 years ago
If area of a circle is 49/64 pie cm square,then find the circumference of the circle?​
tresset_1 [31]

Answer:

7/4 * pi

Step-by-step explanation:

Area of circle = pi * r^2

Find radius:

pi * 49/64 = pi * r^2

49/64 = r^2

7/8= r

Circumference of circle = 2pi * r

2 * pi * (7/8) = 7/4 * pi

Assuming that the answer is in terms of pi as the question is in terms of pi

8 0
2 years ago
Read 2 more answers
Which fraction can be expressed as a repeating decimal?<br> A; 1/10<br> B; 1/4<br> C; 3/5<br> D; 7/9
Tju [1.3M]

Answer: The answer is D

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
NEED HELP ASAP!!!!!!!!!!!!!!
-Dominant- [34]

Answer: B

Step-by-step explanation:

4 0
2 years ago
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