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
Levart [38]
3 years ago
14

Maya is packing her backpack for hike. In one pocket, she puts in a 1/2 pound bag of trail mix,a water bottle weighing 2 1/8 pou

nds, and flashlight weighing 1/4 pound. How much weight do these three items add to her backpack? Show your work.
Mathematics
1 answer:
Rudik [331]3 years ago
7 0

Total weight of three items is 2.875 pounds

<em><u>Solution:</u></em>

Given that,

Maya is packing her backpack for hike

From given,

pound\ bag\ of\ trail\ mix = \frac{1}{2}\ pounds

water\ bottle = 2\frac{1}{8}\ pounds = \frac{17}{8}\ pounds\\\\flashlight = \frac{1}{4}\ pounds

<em><u>How much weight do these three items add to her backpack?</u></em>

Add all these together

Total\ weight = \frac{1}{2} + \frac{17}{8} + \frac{1}{4}\\\\Total\ weight = \frac{1 \times 4}{2 \times 4} + \frac{17}{8} + \frac{1 \times 2}{4 \times 2}\\\\Total\ weight = \frac{4}{8} + \frac{17}{8} + \frac{2}{8}\\\\Total\ weight = \frac{23}{8} = 2.875

Thus total weight of three items is 2.875 pounds

You might be interested in
If the area of a triangle is 48 cm2 and the base of the
makvit [3.9K]

Answer:

8

Step-by-step explanation:

Formula for height of triangle

A÷BX2

In this case, 48÷12=4×2=8

Hope you understand ☺️

4 0
3 years ago
jala has an aquarium in the shape of a rectangular prism with the dimensions shown. what is the height of the of the aquarium ?
beks73 [17]
I think that it your answer is 12.4 but im not 100% sure 

plz mark brainiest

5 0
3 years ago
Read 2 more answers
Round 2,641 to the nearest thousand. Round 2,641 to the nearest thousand?
Elenna [48]

Answer:

2641

we round off 2

then we get,

2641=3000

8 0
3 years ago
Read 2 more answers
Hurry, I need help and please explain
Zepler [3.9K]

Answer:

Question 18

=$3.33

Step-by-step explanation:

i)

26/100 x 4.5

=1.17

(the discount price)

ii)

$4.5-$1.17

=$3.33

5 0
3 years ago
Read 2 more answers
One stats class consists of 52 women and 28 men. Assume the average exam score on Exam 1 was 74 (σ = 10.43; assume the whole cla
Svetllana [295]

Answer:

(A) What is the z- score of the sample mean?

The z- score of the sample mean is 0.0959

(B) Is this sample significantly different from the population?

No; at 0.05 alpha level (95% confidence) and (n-1 =79) degrees of freedom, the sample mean is NOT significantly different from the population mean.

Step -by- step explanation:

(A) To find the z- score of the sample mean,

X = 75 which is the raw score

¶ = 74 which is the population mean

S. D. = 10.43 which is the population standard deviation of/from the mean

Z = [X-¶] ÷ S. D.

Z = [75-74] ÷ 10.43 = 0.0959

Hence, the sample raw score of 75 is only 0.0959 standard deviations from the population mean. [This is close to the population mean value].

(B) To test for whether this sample is significantly different from the population, use the One Sample T- test. This parametric test compares the sample mean to the given population mean.

The estimated standard error of the mean is s/√n

S. E. = 16/√80 = 16/8.94 = 1.789

The Absolute (Calculated) t value is now: [75-74] ÷ 1.789 = 1 ÷ 1.789 = 0.559

Setting up the hypotheses,

Null hypothesis: Sample is not significantly different from population

Alternative hypothesis: Sample is significantly different from population

Having gotten T- cal, T- tab is found thus:

The Critical (Table) t value is found using

- a specific alpha or confidence level

- (n - 1) degrees of freedom; where n is the total number of observations or items in the population

- the standard t- distribution table

Alpha level = 0.05

1 - (0.05 ÷ 2) = 0.975

Checking the column of 0.975 on the t table and tracing it down to the row with 79 degrees of freedom;

The critical t value is 1.990

Since T- cal < T- tab (0.559 < 1.990), refute the alternative hypothesis and accept the null hypothesis.

Hence, with 95% confidence, it is derived that the sample is not significantly different from the population.

6 0
4 years ago
Other questions:
  • I need help! Someone help me please
    7·2 answers
  • A bathtub is being filled with water. After 10 minutes, there are
    13·2 answers
  • One of the angles of a regular decagon is 144°. What is the sum of the measures of all the interior angles of this decagon? A. 9
    5·2 answers
  • The amount of money Alan earns as a plumber after x hours is modeled by the equation y=$25x+50. What is the meaning of $25 in th
    6·1 answer
  • Has anyone taken Ap language and composition
    6·2 answers
  • Help please! I'm stuck with all these numbers :(
    11·2 answers
  • ?????,?,????????????????,"&amp;_#£$£¥$£$???​
    13·2 answers
  • A value pack of candy bars cost 7.50. If there 25 candy bars in the package,what is the cost per candy bar?
    8·1 answer
  • The sum of 7+14+21 + 150 terms​
    11·1 answer
  • 40 points” help HLP HL
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!