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trapecia [35]
3 years ago
7

5-7k=-4(k+1)-3 add work pleasee!!!

Mathematics
2 answers:
soldi70 [24.7K]3 years ago
5 0
K=4
Tip next time you do this try using a calculator more reliable.
marshall27 [118]3 years ago
3 0

Answer:

k=4

Step-by-step explanation:

5-7k=-4(k+1)-3

Distribute

5-7k=-4k-4-3

Combine like terms

5-7k=-4k-7

Add 7k to each side

5-7k +7k = -4k+7k-7

5 = 3k-7

Add 7 to each side

5+7 = 3k-7+7

12 = 3k

Divide by 3

12/3 = 3k/3

4=k

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Mary has twice as many dogs as David has cats and josh has enough animal collars to give a collar to one third of the dogs or to
Ann [662]
D = 2C
J = 1/3D
J = C - 1

J = 1/3D
J = 1/3(2C)
J = 2/3C

2/3C = C - 1
2/3C - 3/3C = -1
-1/3C = -1
C = -1 * -3
C = 3...there are 3 cats

J = C - 1
J = 3 - 1
J = 2.....there are 2 collars





3 0
3 years ago
Find the value of x.<br><br> (x + 4)<br> 147°
larisa86 [58]

Answer:

<h2>x = 29°</h2>

Step-by-step explanation:

From the question the angles lie on a straight line which means that the sum of their angles add up to 180°

Since angles on a straight line add up to 180°

To find the value of x add up all the angles and equate it to 180 to find x

That's

x + 4 + 147 = 180

x + 151 = 180

x = 180 - 151

We have the final answer as

<h3>x = 29°</h3>

Hope this helps you

8 0
4 years ago
a plumber has a copper pipe 0.9 meter long he cuts the pipe into 4 equal pieces find the length of each piece in meters round yo
Xelga [282]
If it is 0.9 meters long and then he cuts the pipe into 4 equal pieces, then you would just do the equaton: 0.9÷4 and the answer would be 0.225
5 0
3 years ago
A Student bought concert tickets online. The total cost, c, in dollars of t tickets can be found by using the function c=24.50t
Ira Lisetskai [31]

Answer:

Your answer is: t = 3

83 = 24.5t

73.5 = 24.5t

t = 3

t = tickets

b = 2

m = -2/5

Step-by-step explanation:

Hope this helped : )

7 0
4 years ago
Need answers ASAP<br> What is  <br> m∠LQK<br> ? <br> Enter your answer in the box.
mojhsa [17]
It is an acute angle.
8 0
3 years ago
Read 2 more answers
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