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ELEN [110]
3 years ago
6

X+8=21 so what is the answer

Mathematics
2 answers:
aliina [53]3 years ago
8 0
<span>X+8=21

We want to get x alone so just subtract 8 from both sides

X=13  </span>
zhenek [66]3 years ago
6 0
X + 8 = 21
x = 21 - 8
x = 13

:)

  
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Adele bought a dress that was on sale for 20 percent off the regular price of $129.00. if a 7 percent sales tax was added to the
Verdich [7]

Answer:

original price = $129

20% discounted price = $103.2

adding 7% sales tax = $110.424

OPTION B  =  110.42

5 0
3 years ago
NEED HELP ASAP!!
pantera1 [17]

Answer:

t=1/30 h = 2 min

Step-by-step explanation:

d = vt

system of equations:

d = 13t

d - 2/5 = t       ->     d = t+2/5

Solve

13t = t +2/5

t = 1/30 h = 60 min / 30 = 2 min

8 0
3 years ago
If the first 4 terms of an infinite geometric sequence are 150, 120, 96, and 76.8, then the sum of all the terms in the sequence
hammer [34]

The sum of the sequence is 750

<h3>How to determine the sum of the series?</h3>

The series is given as:

150, 120, 96, and 76.8,

Start by calculating the common ratio using:

r = T2/T1

This gives

r = 120/150

r = 0.8

The sum of the series is then calculated as:

S = \frac{a}{1 - r}

This gives

S = \frac{150}{1 - 0.8}

Evaluate

S = 750

Hence, the sum of the sequence is 750

Read more about sequence at:

brainly.com/question/6561461

#SPJ1

4 0
2 years ago
Evaluate the expression 15-n when n =8
Dvinal [7]

Answer:

7

Step-by-step explanation:

if : n = 2    : 15 -  n = 15 - 8 = 7

4 0
3 years ago
Another music store rents trombone for $30 per month plus a yearly fee of $48. Which deal is better? Should Maria change her ren
Lera25 [3.4K]

Answer:

the plan costs $360+48= $408 compare two prices since I dont know the other price :(

Step-by-step explanation:

12x30+48=?

3 0
3 years ago
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