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3 years ago

Slove these one step equation for the variable listed: Show your work

Mathematics

2 answers:

GalinKa [24]3 years ago

7 0

Answer:

Step-by-step explanation:

1) 14-7 = 7 = k

2) 21 + W = 36 → W = 36 - 21 → W = 25

3) -5 = G + 3. Add 5 to both sides, obtaining G = 8.

4) 2b = 12. Div. both sides by 2: b = 6

5) 35 = 5R. Div. both sides by 5: 7 = R

6) Q/2 = 6; Mult both sides by 2: Q = 12

3241004551 [841]3 years ago

5 0

1. 7=k

2. 21+w=36

-21 -21

----------------------

w=15

3. -5 =G+3

-3 -3

---------------------

-8=G

4. 2b/2=12/2

b=6

5. 35/5=5R/5

7= R

6. Q/2 (2) = 6 (2)

Q=12

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Step-by-step explanation:

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Please select the best answer from the choices provided<br><br> A<br> B<br> C<br> D

SSSSS [86.1K]

ANSWER

The correct answer is D.

$\sum_{n=1} ^{6} (n - 3) = ( - 2) + ( - 1) + (0) + (1) + (2) + (3) = 3$

EXPLANATION

The given expression is

$\sum_{n=1} ^{6} (n - 3)$

The symbol means summation.

So we need to substitute

$n=1,n=2,n=3,n=4,n=5, \:and\:n=6$

into the formula and add all to get,

$\sum_{n=1} ^{6} (n - 3) = (1 - 3) + (2 - 3) + (3- 3) + (4 - 3) + (5 - 3) + (6 - 3)$

We simplify to obtain,

$\sum_{n=1} ^{6} (n - 3) = ( - 2) + ( - 1) + (0) + (1) + (2) + (3) = 3$

The correct answer is D

6 0

2 years ago

Read 2 more answers

A survey of middle school students asked: What is your favorite winter sport? The results are summarized below:Favorite Winter S

Annette [7]

Answer:

a) 31.38%

b) 28.44%

c) 33.33%

d) 73.46%

e) 53.89%

Step-by-step explanation:

<h3>(See picture attached for sub-totals) </h3>

a) What is the probability of selecting a student whose favorite sport is skiing?

P = 171/545 = 0.3138 = 31.38%

b) What is the probability of selecting a 6th grade student?

P = 155/545 = 0.2844 = 28.44%

c) If the student selected is a 7th grade student, what is the probability that the student prefers ice-skating?

P = 70/210 = 0.3333 = 33.33%

d) If the student selected prefers snowboarding, what is the probability that the student is a 6th grade student?

P = 155/211 = 0.7346 = 73.46%

e) If the student selected is an 8th grade student, what is the probability that the student prefers skiing or ice-skating?

P = 180/(171+163) = 180/334 = 0.5389 = 53.89%

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3 years ago