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Sloan [31]
3 years ago
12

The question says; shown here is a mathematical step taken when solving an equation. Identify the mathematical reason or propert

y used to simplify from the first step to the second step.

Mathematics
2 answers:
Margaret [11]3 years ago
8 0
Subtraction property of equality
Alenkasestr [34]3 years ago
5 0
In this case, we subtracted 7 from both sides since the (+7) disappeared from the first side, and the 15 decreased to 8 (15-8=7).
So it's the subtraction property of equality.
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Which temperature is warmest?<br><br> -12°<br> 0°<br> -17°<br> -34°
amid [387]
I think it’s 0 bc it’s the only one that isn’t negative
7 0
3 years ago
Read 2 more answers
Dawn and lin took off on skateboards from the same location but traveled in opposite directions. After 20 minutes, Dawn had trav
julia-pushkina [17]

Answer:

14.12 km

Step-by-step explanation:

Distance of Dawn = 6.42 km

Distance from Lin = 7.7 km in the opposite direction.

If they went in opposite directions then they were moving away from each other.

Therefore, the final distance between the two can be written as follows:

d = 6.42 + 7.7 = 14.12 km

After 20 minutes Dawn and Lin were 14.12 km away.

4 0
3 years ago
5[x-(4x-5)]=3-8x <br> Solving for x
stiv31 [10]
5(x-4x+5)=3-8x
5x-20x+25=3-8x
-15x+25=3-8x
-7x+25=3
-7x=-22
x= 22/7

7 0
3 years ago
A line segment has endpoints at A(−4,11) and B(2, 3). Which of the following would be the coordinates of the midpoint of AB ?
Georgia [21]

Answer:

Step-by-step explanation:

average of x-coordinates = (-4+2)/2 = -1

average of y-coordinates = (11+3)/2 = 7

midpoint of AB = (-1,7)

7 0
3 years ago
Read 2 more answers
10 hour - 2 hours 25 minutes -3hours 35 minutes
Gennadij [26K]

Answer:

Step-by-step explanation:

10 hours - 2 hours 25 minutes - 3 hours 35 minutes

Lets just do this

2 hours 25 minutes + 3 hours 35 minutes

25 minutes + 35 minutes = 60 minutes

60 minutes = 1 hour

now we have 2 hours + 3 hours + 1 hour

2 + 3 +1  = 6

now we have 10 hours - 6 hours

10 - 6 is 4

4 hours.

7 0
3 years ago
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