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notka56 [123]
3 years ago
8

describe how making a list can help you solve a math problem.Write a problem that could be solved by making a list.

Mathematics
1 answer:
uranmaximum [27]3 years ago
6 0
Making a list helps organize the information in a word problem that can otherwise be overwhelming and confusing. Making lists put out a straightforward guide and help you break down the problem so you really understand what you need to do. 
Word problem:
Maya has $55 and she gives her brother $10. She also gives her friend $15 and her sister $5. Her sister pays her back fully but her brother only pays back half of what he owed, promising to pay her back later. Her friend gives back 1/3 of what she owed, also promising to pay her back as soon as she can. How much money does Maya currently have?

In this problem, you have to process the money transactions and making a list will help you go step by step.
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Please help with these
MatroZZZ [7]
Set up a proportion.

\frac{3~minutes}{2~questions} = \frac{x~minutes}{12~questions}

Cross multiply.

2x=36
x=12

It would take her 12 minutes.

-----------------------------------------

Formula for surface area of a cube: 6a² where a=20.

6 x (20)²
6 x 400
= 2400

Surface area: 2400 cm

----------------------------------------------

Mean absolute deviation: The average distance from each number in the set to the mean of the set.

Mean of the set: \frac{(3+8+10+12+15)}{5} =  \frac{48}{5} = 9.6

9.6-3=6.6
9.6-8=1.6
10-9.6=0.4
12-9.6=11.4
15-9.6=5.4

Mean of 6.6, 1.6, 0.4, 11.4, and 5.4: \frac{(6.6+1.6+0.4+11.4+5.4)}{5} =  \frac{25.4}{5} = 5.08
8 0
3 years ago
Let a= x^2 +4. Rewrite the following equation in terms of a and set it equal to zero.
swat32

Answer:

C and G

Step-by-step explanation:

(x^2+4)^2+32=12x^2+48 is written as (x^2+4)^2+32=12x^2+48.

We can simplify the expression using the term a by replacing x^2 + 4 with a.

(x^2+4)^2+32=12x^2+48\\(x^2+4)^2+32=12(x^2+4)\\a^2 + 32 = 12a\\a^2 - 12a + 32 = 0

This factors into (a-4)(a-8). Solve by setting each factor equal to 0 and solve for a.

a-4 = 0                 a=4

a-8=0                   a=8

4 0
3 years ago
Harold collected data on the daily high temperature in two cities over a period of one week.
Misha Larkins [42]

Answer:

Correct choices are 1 and 4

Step-by-step explanation:

As per data given we have:

  • Median temperature is 75°F and 88°F
  • And the range from the median is 5° for both cities

This gives us lowest temperatures of:

  • 75° -5° = 70° and 88° - 5°= 83° respectively

And high temperatures are:

  • 75° + 5° = 80° and 88° + 5° = 93°

<u>Answer choices based on above details:</u>

  • Choice 1 - correct
  • Choice 2 - incorrect. Correct answer is 93°
  • Choice 3 - incorrect. Correct answer is 93° - 70° = 23°
  • Choice 4 - correct

3 0
3 years ago
You are considering buying organic milk at the grocery store. A gallon of organic milk costs $1.00 more than a regular gallon of
BARSIC [14]

Answer:

C= $1t + x

Step-by-step explanation:

So,  an organic gallon of milk is 1 dollar more then regular so the equation starts at $1 + x.

But then buying the organic milk over time is t so you add that to the one dollar since it applies to the organic milk. Now the equation is $1t + x.

But now, the expression we wrote is equal to C so, now the equation is C=$1t + x

7 0
3 years ago
The number of 8-ounce glasses of water Shane drank each day for 12 days is represented in
masha68 [24]

The histogram representing the data is attcwhwd in the picture below.

Answer:

C On exactly 25% of these days, Shane drank 3 to 4 glasses of water.

Step-by-step explanation:

The number of 8 - ounce glasses is represented on the x - axis and the number of days on the y - axis.

From the histogram ;

Shane drank 1 - 2 glasses on exactly 1 day

Shane drank 3 - 4 glasses on exactly 3 days

Shane drank 5 - 6 glasses on exactly 6 day

Total number of days = 12

60% of 12 = 7.2

On exactly 60% of the days, which is 7.2 days, number of glasses drunk isn't covered by the histogram

25% of 12 ; 0.25 * 12 = 3 days

From the histogram, number of glasses consumed is 3 - 4 glasses ; which is the only true statement about the histogram in the options given.

5 0
3 years ago
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