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const2013 [10]
3 years ago
13

7 = x + 12 A. -19 B. -5 C. 4 D. 5

Mathematics
2 answers:
Oduvanchick [21]3 years ago
6 0

x+12=7

x+12-12=7-12

x=-5

Elena L [17]3 years ago
5 0

You have to get "X" by itself so you subtract 12, 7-12 is -5 so "X" = - 5


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In the xy coordinate plane, the slope of a line is 4 and it passes through the point (1, 3). Find the equation of a line that is
igor_vitrenko [27]

Answer: Y=-1 or Y=-1+4

Step-by-step explanation:

<h3>Use the formula y2- y1 over x2-x1 so it should look like this 1-3 over 3-1 which is -2 over 2 then you divide that which is -1 and if you have to find one all you have to do is use one point label which is x and y so I pick (1,3) so you put 3=-1(1) once you have that you multipy so -1 times 1 is -1 so your gonna add 1 to the -1 and the three the -1 cancel out because it is a zero pair 3+1 is 4 so B=4 </h3>
5 0
3 years ago
3/5 + 1/2 =? ; 1/2 + 3/8 =? ; 1/2 + 2/5=?
slavikrds [6]
3/5+1/2=___
To add them together, convert both fractions so they have the same denominator.
3/5=6/10 and 1/2=5/10
6/10+5/10=11/10, or 1 1/10

1/2+3/8=___
Same for this one- convert both fractions so they have the same denominator.
1/2=4/8 and 3/8 stays the same
4/8+3/8=7/8

1/2+2/5
And again, convert both fractions so they have the same denominator.
1/2=5/10 and 2/5= 4/10
5/10+4/10=9/10

Hope this helps :-)
5 0
3 years ago
Read 2 more answers
PLEASE HELP 7TH GRADE MATH
grigory [225]

Answer:

B. 224

Step-by-step explanation: 42/60 means that 70 % of people ride the school bus. So 70 percent of 320 is 224. Hope this helps

7 0
2 years ago
I will give brainliest to the best answer.
aniked [119]

Given that two digit numbers are used and one digit is drawn randomly.

Sample space = {10,11,...99}

n(S) = 90

32 is only one number favorable

Hence P(32) = 1/90

----------------------------

Odd numbers are exactly 45.

Hence prob (odd number) = 45/90 = 1/2

-------------------------------------

Multiples of 5 are 10,15,.....95

There are exactly 18 numbers.

Hence P(a multiple of 5) = 18/90 =1/5

Have an amazing day! <3

7 0
3 years ago
log 95 The expression Tog2 is the result of applying the change of base formula to a logarithmic expression. Which could be the
Ivanshal [37]

Answer:

third option: log_2  1/3

Step-by-step explanation:

change of base formula:

log_b  a= (log_x a)/(log_x b)

(log 1/3)/(log 2)

apply reverse change of base formula

2 from log 2 becomes new base, and 1/3 becomes the other number

=log_2  1/3

7 0
2 years ago
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