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Zina [86]
3 years ago
5

Please Solve for the value of k.

Mathematics
1 answer:
alukav5142 [94]3 years ago
8 0

Answer:

k = 13

Step-by-step explanation:

The sum of the angles is 180 since they form a straight line

4k-7 + 90 + 3k+6 = 180

Combine like terms

7k+89=180

Subtract 89 from each side

7k+89-89 = 180-89

7k =91

Divide each side by 7

7k/7 = 91/7

k = 13

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PLEASE HELP! 50 POINTS
s2008m [1.1K]

Answer:

x = 45

Step-by-step explanation:

→ Add all the angles together

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→ Simplify

6x + 90 = 360

→ Minus 90 from both

6x = 270

→ Divide by 6

x = 45

8 0
2 years ago
Read 2 more answers
-7 + 2x = -45<br> a 1<br> b -19<br> c 11<br> d -16
Marina86 [1]

Answer:

B) -19

Step-by-step explanation:

-7 + 2x = -45

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3 years ago
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Elodia [21]

Answer:

75%

Step-by-step explanation:

The <em>number </em>increase is 9. 9 is what percent of 12? 9 is 75% of 12

8 0
3 years ago
Wich expression can be used to find the slope of a line containing the points (-3,2) and (7,-1)
docker41 [41]
A(x_1;\ y_1);\ B(x_2;\ y_2)\\\\\text{The slope:}\ m=\dfrac{y_2-y_1}{x_2-x_1}


\text{We have:}\\(-3;\ 2)\to\ x_1=-3;\ y_1=2\\(7;\ -1)\to x_2=7;\ y_2=-1

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6 0
4 years ago
A box contains 5 red marbles, 6 white marbles, and 4 blue marbles. find p(red or blue)
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3 0
3 years ago
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