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
Dima020 [189]
3 years ago
11

Stella wants to buy colored pencils that cost $3.50. She has 1 dollar, 5 quarters, 4 dimes, and 7 pennies. Does she have enough

money to buy the colored pencils?
Mathematics
1 answer:
Andrews [41]3 years ago
6 0

Answer:

no

Step-by-step explanation:

Lets she how much money she has

1.00   dollars

5 * .25 = 1.25 quarters

4 * .10 = .40 dimes

7 * .01 = .07 pennies

Add it all together

1 + 1.25+ .40 +.07 =2.72

3.50 - 2.72 =.78

She is 78 cents short

You might be interested in
a parking garage has 6 levels. Each level has 15 row. Each row has the same number of parking spaces. there are 2,250 parking sp
Mandarinka [93]
To start with, we know there’s a definite amount of parking spaces in all(2,250) and we also know each level(6 in all) had 15 rows of parking spaces.

Equation

A = Parking spots per row


A = 2,250 Divided by(6 levels times 15 rows)

A= 2,250 Divided by 90


A = 25

The correct answer is 25 parking spots per row

To check this answer we can do

25 spots per row, Times 15 rows per level, Times the total amount of levels (6)

= the total amount of parking spots

25*15*6= 2,250

True


This confirms this answer as correct. Hope this helps.
6 0
2 years ago
Through (-3,-5) and (0,-2)
GarryVolchara [31]

Answer:

Step-by-step explanation:

I think your doing slope, so...

       -2 - - 5                 3

  ------------------  =  ---------------  =     1

        0 - - 3                  3

                                       (simplifyed)

7 0
3 years ago
A study was conducted to determine whether magnets were effective in treating pain. The values represent measurements of pain us
amm1812

Answer:

Given:

Sham: n= 20,     x=0.44,   s=1.24,

Magnet:n= 20,  x =0.49,   s= 0.95

For Sham:

Sample size, n = 20

Sample mean = 0.44

Standard deviation = 1.24

For Magnet:

Sample size = 20

Sample mean = 0.49

Standard deviation = 0.95

The null and alternative hypotheses:

H0: s1²=s2²

H1: s1² ≠ s2²

a) To find the test statistics, use the formula:

\frac{s1^2}{s2^2}

\frac{1.24^2}{0.95^2} = \frac{1.5376}{0.9025} = 1.7037

Test statistics = 1.7037

b) P-value:

Sham: degrees of freedom = n - 1 = 20 - 1 = 19

Magnet: degrees of freedom = n - 1 = 20 - 1 = 19

The critical values:

[Za/2, df1, df2)], [(1 - Za/2), df1, df2]

f[0.05/2, 19, 19], f[(1 - 0.05/2), 19, 19]

f[0.025, 19, 19], f[0.975, 19, 19]

(2.526, 0.3958)

The rejection region:

Reject H0, if  F < 0.3958 or if F > 2.526

c) Conclusion:

Since the critical values of test statistic is between (0.3958 < 1.7037 < 2.526), we fail to reject null hypothesis H0.

There is insufficient evidence to to support the claim that those given a sham treatment have reductions that vary more than those treated with magnets

3 0
3 years ago
Janna spends 1.25 hours of her 8 hour work day answering email messages. What percentage of the work day is this time
dusya [7]
1.25 divided by 8 =0.15635×100=15.6% or round up to 16%
3 0
3 years ago
How many times dose 20 go into 159
inysia [295]
13 times with a remainder of three
8 0
3 years ago
Other questions:
  • Help , least to greatest
    12·1 answer
  • Equation -1-7v+3= how do i slove this i dont know
    6·1 answer
  • Solve: 2x - 3 = 2x - 5. A) -2 B) 0 C) 5 3 D) no solution
    13·2 answers
  • 9, 11, 13, 15, 17, 19, .
    10·1 answer
  • Please help me I’m stuck.
    13·1 answer
  • Help me pls now its late and i need to turn it in.
    15·2 answers
  • Solve for v.<br> -8v+3(v-3) = 16
    9·2 answers
  • Easy points for those who are good at math!
    8·1 answer
  • Using the rest of my points to ask this, please answer quickly :)
    11·2 answers
  • A factory makes 3,000 plastic forks per hour. How many plastic forks will the factory make in 6 hours?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!