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
Kipish [7]
3 years ago
5

Find 30% of 70 a. 21 b. 36 c. 40

Mathematics
2 answers:
gtnhenbr [62]3 years ago
8 0
A is your answer

We can cross multiply using x/70=30%/100

Solving it we get:
100x=2100 (70 times 30)
x=21


So we get a, 21 as your answer.

I hope this helped!
Vera_Pavlovna [14]3 years ago
3 0
Your answer will be a. 21
You might be interested in
The student government-collected data on club membership by grade level. Data on club membership are summarized in the table sho
Musya8 [376]

Answer:

d.yes because P(Grade 12/PClub Membership) = P(Grade 12)

Step-by-step explanation:

8 0
3 years ago
Following are the number of grams of carbohydrates in a sample of 12-ounce espresso beverages offered at Starbucks. 6 , 9, 10, 2
marusya05 [52]

Answer:

x=6, 9, 10, 20, 22, 25, 27, 40 , 48, 59

i= 1,  2 , 3,  4,    5,   6,    7,   8,    9,    10

And as we can see here the position for x=40 is 8, so then we can calculate the percentile for 40 grams like this:

p=\frac{8}{10} *100 = 80

So the  the vale of 40 gr correspond to the 80th percentile of the data since accumulates 80% of the values below.

Step-by-step explanation:

We can define a percentile as "a value on a scale of 100 that indicates the percent of a distribution that is equal to or below it"

For this case we have the following data given:

6 , 9, 10, 20, 22, 25, 27, 40 , 48, 59

And we want to calculate the percentile for the value of 40 grams

Since the dataset is on increasing way there is no problem to calculate this percentile.

We see that we have a total of n =10 observations, and we can rank the position of each observation (i) like this:

x=6, 9, 10, 20, 22, 25, 27, 40 , 48, 59

i= 1,  2 , 3,  4,    5,   6,    7,   8,    9,    10

And as we can see here the position for x=40 is 8, so then we can calculate the percentile for 40 grams like this:

p=\frac{8}{10} *100 = 80

So the  the vale of 40 gr correspond to the 80th percentile of the data since accumulates 80% of the values below.

3 0
3 years ago
A community action committee is planning a block party. The party will be successful only if at least 70 adults and children att
Sergeeva-Olga [200]

Answer:

A. a + c ≥ 70; 15a + 4c ≤ 1000

Step-by-step explanation:

<u>Given data:</u>

A community action committee is planning a block party

The party will be successful if at least 70 adults (a) and children (c) attend

Their budget for the party is $1,000

The cost for each adult will be $15

And the cost for each child will be $4

<u>Solution:</u>

<u />

At least 70 adults and children attend.

So the inequality here is a + c ≥ 70

The budget for the party is $1,000.

So the cost for all adults plus the cost for all children cannot exceed $1,000

And hence the inequality here is; 15a + 4c ≤ 1,000

3 0
3 years ago
Read 2 more answers
Can someone please help
Westkost [7]

Answer: B & D

<u>Step-by-step explanation:</u>

A is not correct because it says "in the city" instead of "in Elan's school"

C is not correct because it says do NOT ....

4 0
3 years ago
I’ll give you brainless please help me
Papessa [141]

Answer:

I'm pretty sure its 4

6 0
2 years ago
Other questions:
  • The fish tank in Paul's bedroom has a pump that will recirculate 75 gallons of water in 1/4 of an hour. Find the unit rate in ga
    8·1 answer
  • What is the surface area of a cube with a side of length 14 meters?
    12·2 answers
  • Find the length of side ab.
    6·1 answer
  • What is 180(n-2)=s when solving for N​
    8·1 answer
  • Complete the missing number sequence.<br><br>1/4, 1/2,___, 1, 11/4​
    13·1 answer
  • Solve and round answer to nearest hundredth.
    14·1 answer
  • Find a​ point-slope form for the line with slope 1/5 ( 1 over 5) and passing through the point ​(−8​,−9​)
    9·1 answer
  • Which of the following can be used to show a cause-and-effect relationship between two variables?
    12·2 answers
  • Help please ASAP !
    10·1 answer
  • If x-y = -10 and x-y = 2 what is the value of x
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!