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3 years ago

Chen uses different strategies to add. He works with the addends 4,5,6,7

Mathematics

1 answer:

Lelu [443]3 years ago

4 0

You can do 6 I guess. Then do 6+6=12

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Solve for n: c= 6n−5g /11t

qwelly [4]

Answer: $\frac{11tc+5g}{66t}=n$

Step-by-step explanation:

You have the equation $c=6n-\frac{5g}{11t}$ .

Then, to solve for the variable $n$ from the equation you need:

Make the subtraction of the right side of the equation:

(As the denominators are 1 and $11t$ , the least common denominator is $11t$ )

$c=\frac{(6n)(11t)-5g}{11t}\\\\c=\frac{66nt-5g}{11t}$

Multiply $11t$ to both sides:

$(11t)c=(\frac{66nt-5g}{11t})(11t)\\\\11tc=66nt-5g$

Add $5g$ to both sides:

$11tc+5g=66nt-5g+5g\\\\11tc+5g=66nt$

And finally divide both sides by $66t$ :

$\frac{11tc+5g}{66t}=\frac{66nt}{66t}\\\\\frac{11tc+5g}{66t}=n$

3 0

3 years ago

. A fence encloses a triangular field. There is

poizon [28]

Answer:

16 posts

Step-by-step explanation:

Sides are:

20 ft, 25 ft and 35 ft

There are following number of posts on each of the sides:

20 ft side ⇒ 20/5 = 4
25 ft side ⇒ 25/5 = 5
35 ft side ⇒ 35/5 = 7

Total number:

4 + 5 + 7 = 16 posts

6 0

3 years ago

Pls help middle school math and picture question

Ira Lisetskai [31]

Distance is 10 united

5 0

3 years ago

Read 2 more answers

I need help with these! Thanks!!

spin [16.1K]

-2[9 - (x + 7)]
-2[9 - x - 7]
-2[-x + 9 - 7]
-2[-x + 2]
-2[-x] - 2[2]
2x - 4

The answer is C.

8 0

3 years ago

What is the recursive formula for the geometric sequence with this explicit

AveGali [126]

The answer of this equation is a^n=9(-1/4) (n+ 1)

3 0

2 years ago