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Evgen [1.6K]
3 years ago
9

Which method do you prefer to use to find sums-count be tens and ones use compatible numbers or use friendly numbers and adjust?

Explain why.
Mathematics
2 answers:
AnnyKZ [126]3 years ago
7 0
To the CFCs h n b jfnfbvb
Stels [109]3 years ago
4 0
You can use the cfc formula                                                        
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Solve.... 4n- 9= 2 (5+ 2n)
timama [110]

Answer:

Step-by-step explanation:

Here you go mate

Use PEMDAS

Parenthesis,Exponent,Multiplication,Division,Addition,Subtraction

Step 1

4n-9=2(5+2n)  Equation/Question

Step 2

4n-9=2(5+2n)  Remove parenthesis

4n-9=4n+10

Step 3

4n-9=4n+10  Subtract 4n to sides

-9=10

Step 4

-9=10  Add 9

0=19

Answer

No solutions

Hope this helps

3 0
3 years ago
Please help with math question below
Umnica [9.8K]
Edges that are perpendicular to PR basically means what edges make a 90° angle with PR.

Those edges are HP , RA, TR and QP.

Hence, the answer is A, B and C.
5 0
3 years ago
Read 2 more answers
What expression can be used to find the total discount? Select all that apply. 0.3*42 or 3/10*42 or 0.03*42 or 3 *4.2
ehidna [41]

0.3*42   this gives you a 30% discount

3/10*42  this gives you a 30% discount

0.03*42 this gives you a 3% discount

3 *4.2  This is not a  discount

6 0
3 years ago
Sum of interior angles of a convex 14-gon
just olya [345]

Answer: 2160°

Step-by-step explanation:

The sum of angles in a polygon is represented by the formula:

Sum = (n - 2) x 180° where n is the number of sides in the polygon

In this case, the complex polygon has 14 sides (n = 14)

So, (14 - 2) x 180°

= 12 x 180°

= 2160°

Thus, the sum of interior angles of a convex 14-gon is 2160°

3 0
3 years ago
A person of interest was identified by the police. Using three different telecommunication towers,
choli [55]

Answer:

Well since he tracked the person through the communication towers he was able to gather information, with this information we can solve and find out how far this person is.

Step-by-step explanation: read above and trust

7 0
3 years ago
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