1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ivanshal [37]
3 years ago
12

Stanley has a collection of seashells. He found 35% of his collection on Florida beaches. If Stanley has 49 seashells from Flori

da, how many seashells does he have in his collection all together?
A) 90
B) 120
C) 140
D) 160
Mathematics
1 answer:
svet-max [94.6K]3 years ago
3 0

Answer:

140 shells. So, C

Step-by-step explanation:

Let x equal the total number of shells in Stanley's collection. Then,

.35 x = 49

x = 49 / .35

x = 140

You might be interested in
The quality control department at Alexander Fasteners measured the length of 100 bolts randomly selected from a specified order.
erma4kov [3.2K]

Answer:

a) P [Z < 5.79]  =  7.49 %

b) P [ Z > 7.46 ] = 82.38 %

c) P [ Z > 6.65 ]  = 91.68 %

Step-by-step explanation:

Normal Distribution

Population Mean     μ₀  = 6.8 cm

Standard Deviation  of population    σ = 0,7 cm

a) P [ Z < 5.79 ]  =  ??

z value ?

z = ( 5,79 - 6,8 ) / 0,7    ⇒   z = - 1.01 / 0,7  ⇒   z = - 1.442

From z table we get:

z =  - 1.442       ⇒   P [Z < 5.79]  =  0.0749     or

P [Z < 5.79]  =  7.49 %

b)  P [ Z > 7.46 ]

z =  ( 7.46 - 6,8 ) / 0,7    ⇒  z = 0.66 / 0.7   ⇒ z = 0.942

From z table

P [ Z > 7.46 ] = 0.8238    or     P [ Z > 7.46 ] = 82.38 %

c) P [ Z > 6.65]  

z  = ( 6.65 - 6.8 ) / 0.7       ⇒   z  = - 0,15 / 0.7     ⇒ z = - 0.214

From table we get area between 6.65 and the mean, therefore we have to add  ( 0.5 ) half of total area

Then from z table  

z = - 0,214         ⇒   0,4168

Then P [ Z > 6.65 ]  = 0,4168 + 0.5

P [ Z > 6.65 ]  = 0.9168    or

P [ Z > 6.65 ]  = 91.68 %

P [ Z > 6,65 ] = 0,5 +

5 0
4 years ago
A travel agent is booking trips for tourists who travel from New York to Chicago. Tourists have three choices for how to travel
sashaice [31]

Answer:

P = 1/2

Step-by-step explanation:

If the tourist spends more than 275$, they must not arrive in Chicago by bus.

( 150 + 60 < 275, 150 + 40 < 275)

The total options the tourist can make:

3 x 2 = 6

(1st leg: 3 possible options, 2nd leg: 2 possible options)

The number of options the tourist can make after excluding bus option:

2 x 2 = 4

(1st leg: 2 remaining possible options, 2nd leg: 2 possible options)

The number of options the tourist can make after excluding the bus option and spend more than 275$:

4 - 1 = 3

(excluding the case of selecting train and cab, because 225 + 40 < 275)

=> The probability that the tourist will spend more than 275$ on these 2 legs of the trip:

P = 3/6 = 1/2

3 0
3 years ago
Use the distributive property to rewrite 6(4-x)
Arlecino [84]

Answer:

24-6x

Step-by-step explanation:

To distribute, you multiply the number outside the parenthesis by each number inside, keeping in mind the signs.

So, 6(4-x) = 6(4) - 6(x) = 24-6x

8 0
4 years ago
Read 2 more answers
Help me answe this question please
ratelena [41]

Answer:

c

Step-by-step explanation:

the answer is c becuase on the height

7 0
3 years ago
Helpppp plsssss!!! thanks
Diano4ka-milaya [45]

Answer:


Step-by-step explanation:

x represents the height of the parallelogram, and also represents the width.  As you can see, the parallelogram is longer than the height and width.  5x represents this length.  In words, the parallelogram is 5 times longer than it is wide (or 5 times longer than it is high / thick).

5 0
3 years ago
Read 2 more answers
Other questions:
  • Daddy's annual salary is $42603.00. If he gets the same salary
    14·1 answer
  • A mound of dirt sits next to a hole that is 8 feet deep by 8 feet wide by 8 feet long. If the dirt was dug out to make the hole,
    7·1 answer
  • 0.25 + 1 + 4 + 16 + 64 Enter the values used in finding a partial sum.
    15·2 answers
  • How do you divide a mixed number into a whole number
    15·2 answers
  • The total number of shares of stock in a corporation is 950,000. Carlos owns 25,000 shares. What percent of the shares of stock
    5·1 answer
  • A family drives 412 miles in 10 hours? What is their approximate rate of speed in miles per hour?(not 1/10 of an hour just 10 ho
    11·2 answers
  • What percentage of the total variation in test scores is not explained by the linear relationship between years of study and tes
    14·1 answer
  • I need I will most definitely mark brain-iest ?!
    14·2 answers
  • Help me ? :( no spam or
    12·1 answer
  • Ron wants to make money painting portraits of people at the local mall. The mall
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!