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SCORPION-xisa [38]
3 years ago
7

If the sum of twice a number and -10 is multiplied by -4, the result is 61 greater than the opposite of the number. What is the

number?
Mathematics
1 answer:
kogti [31]3 years ago
8 0
-4(2x-10)=-x+61
-8x+40=-x+61
-7x+40=61
-7x=21
x=-3
the number is -3
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For each situation below, write the equation of the line and explain how you can tell.
sveticcg [70]

Answer:

see below

Step-by-step explanation:

a. Has a slope of 2 and passes through (10,17)

Using the slope intercept form

y = mx+b  where m is the slope and b is the y intercept

y = 2x+b

Substitute the point into the equation

17 = 2(10)+b

17 = 20+b

Subtract 20 from each side

17-20 =b

-3 =b

y = 2x-3

b. passes through (1,-4) and (2,-5)

First find the slope

m= (y2-y1)/(x2-x1)

   = (-5- -4)/(2-1)

  = (-5+4)/(2-1)

  = -1/1

  = -1

Using the slope intercept form

y = -x+b

Substitute a point into the equation

-4 = -1(1) +b

-4 = -1+b

Add 1 to each side

-3 = b

y = -x+3

   

6 0
3 years ago
A die is rolled. The set of equally likely outcomes is {1, 2, 3, 4, 5, 6}. Find the probability of getting a 9.
mrs_skeptik [129]

Answer:

you are only rolling 1 dice the probability of getting 9 is 0 there are only 6 sides to one die

8 0
2 years ago
1. Decide if each su a. 4+3 ​
evablogger [386]

Answer:

the sum is 7

Step-by-step explanation:

ik this because i used to be in kindergarten.

4 0
3 years ago
Can anyone help me with this
Wittaler [7]

I believe the right anwser is c

4 0
3 years ago
HELP PLEASE ANSWER QUICK VERY EASY!!!
sleet_krkn [62]

Answer:

id say c. because its the closest number that corresponds with the graph.

5 0
3 years ago
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