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
Paha777 [63]
3 years ago
13

A basket contains 16 pieces of fruit .1/4 are bananas, 1/2 are apples and the rest are oranges. How many oranges are there?

Mathematics
1 answer:
Svetach [21]3 years ago
7 0
x-\ number \of\ oranges\\\\
x=16-(\frac{1}{4}*16+\frac{1}{2}*16)\\\\
x=16-(4+8)\\\\x=16-12=4\\\\ There\ are\ 4\ oranges.
You might be interested in
To the nearest cubic​ centimeter, what is the volume of the regular hexagonal​ prism? 3 cm 8 cm 2.6 cm The volume of the regular
blagie [28]
Divide multiple 478 by c to max
4 0
3 years ago
Which is the equation of a circle that has a center of (-1, 3) and passes through the point (3, 6)?
Anna [14]

<em> </em><em>the</em><em> </em><em>answer</em><em> </em><em>is</em><em> </em><em>1</em><em>5</em><em>.</em><em> </em><em>Hope</em><em> </em><em>this</em><em> </em><em>will</em><em> </em><em>help</em><em> </em><em>u</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em>

4 0
3 years ago
Read 2 more answers
The length of the rectangle below is (2x-3) and the width is (x+7). Find the area of the rectangle in terms of x.
Alex777 [14]

Answer:

area = 2x² - 17x - 21

Step-by-step explanation:

Area of the rectangle is:

area = (width*length)

area = (x+7)*(2x-3)

        = x*2x + x*-3 + 7*2x + 7*-3

        = 2x² - 3x - 14x - 21

        = 2x² - 17x - 21

4 0
3 years ago
Will give brainliest Please help
statuscvo [17]

Answer:

QR=RS

Step-by-step explanation:

She knows that PRQ=TRS because of vertical angles.

She needs to know the length of the lines QR and RS are equal, that is the line between the two angles.

5 0
3 years ago
5) In a certain supermarket, a sample of 60 customers who used a self-service checkout lane averaged 5.2 minutes of checkout tim
Ne4ueva [31]

Answer:

\S^2_p =\frac{(60-1)(3.1)^2 +(72 -1)(2.8)^2}{60 +72 -2}=8.643

S_p=2.940

t=\frac{(5.2 -6.1)-(0)}{2.940\sqrt{\frac{1}{60}+\frac{1}{72}}}=-1.751

df=60+72-2=130

p_v =P(t_{130}

Assuming a significance level of \alpha=0.05 we have that the p value is lower than this significance level so then we can conclude that the mean for checkout time is significantly less for people who use the self-service lane

Step-by-step explanation:

Data given

Our notation on this case :

n_1 =60 represent the sample size for people who used a self service

n_2 =72 represent the sample size for people who used a cashier

\bar X_1 =5.2 represent the sample mean for people who used a self service

\bar X_2 =6.1 represent the sample mean people who used a cashier

s_1=3.1 represent the sample standard deviation for people who used a self service

s_2=2.8 represent the sample standard deviation for people who used a cashier

Assumptions

When we have two independent samples from two normal distributions with equal variances we are assuming that  

\sigma^2_1 =\sigma^2_2 =\sigma^2

The statistic is given by:

t=\frac{(\bar X_1 -\bar X_2)-(\mu_{1}-\mu_2)}{S_p\sqrt{\frac{1}{n_1}+\frac{1}{n_2}}}

And t follows a t distribution with n_1+n_2 -2 degrees of freedom and the pooled variance S^2_p is given by this formula:

\S^2_p =\frac{(n_1-1)S^2_1 +(n_2 -1)S^2_2}{n_1 +n_2 -2}

System of hypothesis

Null hypothesis: \mu_1 \geq \mu_2

Alternative hypothesis: \mu_1 < \mu_2

This system is equivalent to:

Null hypothesis: \mu_1 - \mu_2 \geq 0

Alternative hypothesis: \mu_1 -\mu_2 < 0

We can find the pooled variance:

\S^2_p =\frac{(60-1)(3.1)^2 +(72 -1)(2.8)^2}{60 +72 -2}=8.643

And the deviation would be just the square root of the variance:

S_p=2.940

The statistic is given by:

t=\frac{(5.2 -6.1)-(0)}{2.940\sqrt{\frac{1}{60}+\frac{1}{72}}}=-1.751

The degrees of freedom are given by:

df=60+72-2=130

And now we can calculate the p value with:

p_v =P(t_{130}

Assuming a significance level of \alpha=0.05 we have that the p value is lower than this significance level so then we can conclude that the mean for checkout time is significantly less for people who use the self-service lane

5 0
3 years ago
Other questions:
  • 2/5 of 7/10 simplest form
    15·1 answer
  • Use compass directions to describe the Direction of a vector. The diagram is not drawn to scale
    7·2 answers
  • Charlie is at an amusement park that has 18 different rides. Each ride costs $1.75. The function C(r) = 1.75r represents the tot
    5·1 answer
  • Numbers:20 &amp; 21 <br> Please help me!!!!
    6·1 answer
  • Can anyone explain to me how to get the answer and what the answer is???
    8·1 answer
  • Suppose that two teams are playing a series of games, each of which is independently won by team A with probability p and by tea
    14·1 answer
  • Which of the following expressions is equal to 5^6/5^2
    8·1 answer
  • PLZZZ ANSWER ASAP!! DUE SOON! ONLY ANSWER IF YOU ARE CORRECT, I CANNOT GET THIS WRONG!!!
    6·1 answer
  • PLEASE HELP!!! very confused
    6·1 answer
  • I need help asap!!!!!!
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!