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sveta [45]
4 years ago
13

Determine which pair of points has a positive slope.

Mathematics
1 answer:
goldenfox [79]4 years ago
3 0
The answer is B, (-10,-2) , (6,6)
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I need help, you need to find x and y<br> Step by step would be good thanks
ziro4ka [17]
X + 2y = 3 ----------- (1)
x - y = 6   ------------(2)

Equation (2) - (1) :
-3y = 3                         //  ║x - x = 0 ║;║ - y - 2y = -3y║ ; ║6 - 3 = 3 ║

y  = -1                          //   ║ ÷ (-3) on both sides ║

Substitute y = -1 into equation (2) :

x - y = 6                        //   ║ Equation 2║

x - ( -1 ) = 6                   //   ║ Sub y = -1 into the equation║

x + 2 = 6                       //   ║ open the bracket ( - ) ( -) = +  ║

x = 4                             //   ║ Take away 2 from both sides║


Answer: x = 4, y =  -1

4 0
4 years ago
5:12 can be written as an equivalent ratio in the form 20:a what is the value of a
IgorC [24]

Answer:

20:a , a=48

Step-by-step explanation:

5*4=20, 12*4 = 48

Simple mathematics, you multiple 5 by 4 to get 20, do the same thing to 12.

5 0
3 years ago
Gary earned an average score of 77 on his first five quizzes. What score will he need on his next quiz to have an overall averag
Lera25 [3.4K]

Answer:

The next score he needs to have an overall average of 79 is 89.

Step-by-step explanation:

Gary earned an average score of 77 on his 5 quizzes . The number of score he needs to have an average of 79 can be calculated below.

average score = 77

number of quizzes = 5

sum of Garry score = a

a/5 = 77

cross multiply

a = 77 × 5

a = 385

let

the next score he needs be  b to score an average of 79

average = 79

number of quizzes = 6

385 + b/6 = 79

cross multiply

385 + b = 474

b = 474 - 385

b = 89

The next score he needs to have an overall average of 79 is 89.

3 0
4 years ago
What is 2(7/10)*1/3+4/15=
NeTakaya
2(7÷10)×1÷3+4÷15=1.4×0.33+0.267
                                  =0.462+0.267
                                  =0.729(0.73)
4 0
3 years ago
What is 9.1 divided by -2.6 equals what
Julli [10]

The answer is -3.5

hope this helps, and have a fantastic day

3 0
3 years ago
Read 2 more answers
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