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jeyben [28]
4 years ago
12

-6+k÷5=-9 how do we work this out

Mathematics
1 answer:
Step2247 [10]4 years ago
3 0
First you have to multiply both sides by -5 which means you will multiply -5 by 6, -5 by k/5, and -5 by 9... So it should look like: -5×6+-5×k/5=-5+9.. after that.. it should look like -40+k=-45.. because the 5's in k/5 cancel out.. so then it should now look like k=-45+30... you subtract.. and k=-15
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How do I solve this problem ​
Vaselesa [24]
C = 84 degrees

A = 2B
C = A + 20
A + B + C = 180

A = 2B
A/2 = B

A + (A/2) + (A+20) = 180
multiply each side by 2
2A + A + 2A + 40 = 360
combine like terms
5A + 40 = 360
subtract 40 from both sides
5A = 320
divide both sides by 5
A = 64

C = A + 20
C = 64 + 20
C = 84
4 0
3 years ago
Plz help with all thanks
just olya [345]
2. 25°
3. 155°
4. 25°
8. 90°
7. 25°
9. 65°
6 0
3 years ago
1) Use the factor theorem to determine if 3x-4 is a factor of f(x)=3x^2+2x-8
valina [46]

Step-by-step explanation:

put f(4/3)= 3(4/3)^(2) +2(4/3)-8 =0

so 3x-4 is a factor

similarly, k=35

4 0
3 years ago
What is the area of the triangle?<br> 8<br> 4
azamat
Area of triangle is base x height divide by 2
8x4=32
32 divide by 2 is
16
3 0
3 years ago
If m=6,x=3,and b=10. y=mx-b
stiv31 [10]

Answer:

y = 8

Step-by-step explanation:

We have that:

m = 6

x = 3

b = 10

y is:

y = mx - b

We want to find the numerical values of y for the given values of m,x and b. We just replace them into the equation.

y = mx - b

y = 6*3 - 10

y = 18 - 10

y = 8

8 0
3 years ago
Read 2 more answers
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