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Tom [10]
3 years ago
14

How do you subtract -6 - (-7)? Can you explain it step by step too? Thanks!

Mathematics
1 answer:
djverab [1.8K]3 years ago
3 0
\bf -6-(-7)\implies -6-1(-7)\implies -6-1\cdot -7\implies -6+(-1\cdot -7)
\\\\\\
-6+(+7)\implies -6+7\implies 1
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Find the least common multiple (LCM) of 6 and 10,<br> O A. 60<br> O B. 20<br> O C. 40<br> O D. 30
kolezko [41]
The answer is 30 I’m sure of it
4 0
3 years ago
Pls answer for brainliest
lana66690 [7]

Answer: Choice B

(x,y) \to \left(\frac{5}{2}x,\frac{5}{2}y\right)

=========================================================

Explanation:

When dilating with respect to the origin, any point of the form (x,y) moves to (kx, ky) for some real number k. The k is the scale factor.

Point C is at (-2,2). It moves to C ' (-5,5)

The jump from x = -2 to x = -5 is "times 5/2" since kx = (5/2)*(-2) = -5

The same scale factor is used when going from y = 2 to y = 5.

Both x and y coordinates are multiplied by 5/2 to move from (-2,2) to (-5,5)

Therefore, the dilation rule we use is (x,y) \to \left(\frac{5}{2}x,\frac{5}{2}y\right)

-----------

We could have these steps to confirm

(x,y) \to \left(\frac{5}{2}x,\frac{5}{2}y\right)\\\\(-2,2) \to \left(\frac{5}{2}*(-2),\frac{5}{2}(2)\right)\\\\(-2,2) \to (-5,5)\\\\

5 0
3 years ago
the states C&amp;D spend a total of 55.6 million dollars for tourism the state C spends 3.2 million dollars more than State D fi
Helga [31]
Alright, let's break this down.
State D blew 55.6 million bucks on tourism.
State C spends an unknown amount, we just know it's 3.2 million MORE than state D.
Well, since we know State D spent 55.6 million on tourism, just add 3.2 million to it to find out how much State C spent.
55.6+3.2=58.8.

This means the state's spent:
State D: 55.6
State C: 58.8

~Hope this helps!

6 0
3 years ago
The lcm of polynomials: 6x(x+3)^2 (x-2) and 9(x+3)(x-2)^2
sergey [27]
I dont know the answer i just need point sorry
5 0
3 years ago
On a particular day, the wind added 4 miles per hour to Alfonso's rate when he was cycling with the wind and subtracted 4 miles
rjkz [21]
Ok so R=alfonso's rate
w=wind rate=4

d=rt

with wind rate is R+4
agaoins wind rate is R-4

with wind distance is 34
against is 18 miles
time is same

34=(r+4)t
18=(r-4)t

34=(r+4)t
divide both sides by (r+4)
34/(r+4)=t

18=(r-4)t
divide both sides by (r-4)
18/(r-4)=t


18/(r-4)=t
34/(r+4)=t

set equal to each other

18/(r-4)=34/(r+4)
multiply both sides by (r-4)(r+4)
18(r+4)=34(r-4)
distribute
18r+72=34r-136
subtract 18r from both sides
72=16r-136
add 136 to both sides
208=16r
divide both sides by 16
13mph

answer is 13mph with no wind
6 0
3 years ago
Read 2 more answers
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