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1 year ago

7

PLEASE HELPPP ILL GIVE 5 STARS TY

2 answers:

Otrada [13]1 year ago

8 0

Answer:

14

Step-by-step explanation:

4^2=16

16/2=8

8+6=14

Art [367]1 year ago

7 0

Answer:

$14$

Step-by-step explanation:

This equation would be easier to do if it was: $6+\frac{4^2}{2}$

So first you have to cancel out: $\frac{4^2}{2}$ so that would become $6+8$

Finally $6+8=14$

There you go brainliest pls

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Three less than two times a number is 55. What is the number ?

Aloiza [94]

29
2x29=58-3 =55
3-2x (x=29) =55
29x2=58-3

5 0

2 years ago

Read 2 more answers

Will mark brainliest please help Debbie notices that the amount owed on her monthly heating bill varies inversely with the avera

Alekssandra [29.7K]

Answer:

The bill is $1837.5

Step-by-step explanation:

Given

$B = Bills$

$T = Temperature$

$B\ \alpha\ \frac{1}{T}$ --- The variation

T = 35; when B = 210

Required

Find B when T = 40

$B\ \alpha\ \frac{1}{T}$

Express as an equation

$B = \frac{k}{T}$

Make k the subject

$k = BT$

<em>T = 35; when B = 210</em>

$k = 35 * 210$

$k = 7350$

When T = 40, we have:

$k = BT$

$7350 = B * 40$

Make B the subject

$B = \frac{7350}{4}$

$B = 1837.5$

7 0

2 years ago

V+9<br> ------- =8 how do you do this and whhats the answer<br><br> 3

Kamila [148]

V or x is something so if you add 9 to get 8 then you must subtract 9 from 8 to get -1 which would be your answer

7 0

2 years ago

Read 2 more answers

Perimeter of triangle:20

EleoNora [17]

What do you want me to do

4 0

2 years ago

HELP ASAP PLEASE!!! 20 POINTS!!

Kobotan [32]

Answer: $S_{12}=399.90$

Step-by-step explanation:

You know that the formula to find the sum of a finite geometric series is:

$S_n=\frac{a_1(1-r^n)}{1-r}$

Where $n$ is the number of terms, $a_1$ is the first term and $r$ is the common ratio ( $r\neq 1$ ).

The steps to find the sum of the first 12 terms of the given geometric serie, are:

1. Find the common ratio "r". By definition:

$r=\frac{a_2}{a_1}$

Then:

$r=\frac{100}{200}\\\\r=\frac{1}{2}$

2. Finally, knowing that:

$a_1=200\\\\n=12$

You must substitute values into the formula.

Then you get:

$S_{12}=\frac{200(1-(\frac{1}{2})^{12})}{1-\frac{1}{2}}\\\\S_{12}=399.90$

6 0

2 years ago