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lozanna [386]
3 years ago
13

7k -2(3k + 1) - 9 Y’all I need help.

Mathematics
2 answers:
rusak2 [61]3 years ago
6 0

Answer:

k - 11

Step-by-step explanation:

7k - 2(3k +1) - 9

So first we start by multiplying out the brackets. Multiply 2 by 3k and 1 then it becomes:

7k - 6k + 2 - 9

Then collect like terms subtract 6k from 7k and 9 from 2:

k - 11

HOPE THIS HELPED

larisa86 [58]3 years ago
4 0

Answer:

k - 11

Step-by-step explanation:

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Mason takes his pulse. He counts 48 beats in 2/3 minute. Mason goes on a bike ride and takes his pulse again. Now he counts 81 b
Kazeer [188]

Answer:

Therefore,  beats per minute did  increase for 36.

Step-by-step explanation:

48: 2/3=x:1

48=2/3 × x

x=3/2×48

x=72

81:3/4=x:1

81=x×3/4

x=4/3×81

x=108

Therefore,  beats per minute did  increase for 36.

5 0
2 years ago
$10,000 is compounded semiannually at 12% interest for t years. what expression represents the amount of money after t years?
kari74 [83]
To solve this, you can do the is over of equals to % over hundred.
is         %
__ = ____
of      100
10,000      12
_____ = ____
    t           100
1,000,000=12t
                __    
t=83,333.33
i hope this helps!
3 0
3 years ago
Which is the simplified form of the expression?
Anon25 [30]

Given:

Consider the given expression is:

10n-\dfrac{1}{3}(9n-12)

To find:

The simplified form of the given expression.

Solution:

We have,

10n-\dfrac{1}{3}(9n-12)

Using distributive property, it can be written as:

=10n-\dfrac{1}{3}(9n)-\dfrac{1}{3}(-12)

=10n-3n+4

=7n+4

Therefore, the correct option is A.

4 0
3 years ago
Can someone help me?
loris [4]

Answer:

i do not know srry

Step-by-step explanation:

i think u should try and solve it with a better teacher

4 0
3 years ago
Read 2 more answers
18. Solve the equation.<br> m- 10/3 - 5m-9/7 = 1
JulijaS [17]

The answer is m = -59/42

Step by step explanation is in the image below.

4 0
3 years ago
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