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Leno4ka [110]
2 years ago
8

Last school year, trent kept track of the amount of time he spent on homework each night. this box plot shows the results. time

spent on homework (min.) 20 40 60 80 100 120 what percent of the time did trent spend at least 80 minutes on homework?
Mathematics
1 answer:
SOVA2 [1]2 years ago
6 0

The percentage of time spend at least 80 minutes on homework will be 66.66%.

<h3>What is the percentage?</h3>

The Percentage is defined as representing any number with respect to the 100. It is denoted by the sign %.

Given that:-

The time he spent on homework each night. this box plot shows the results.

The time spent on homework (min.) 20 40 60 80 100 120.

The percentage will be calculated as:-

Maximum time spent = 120 minutes

The percentage for 80 minutes of homework will be:-

=   120  /  80

=   0.66=66 = 66.66%

Therefore the percentage of time spend at least 80 minutes on homework will be 66.66%.

To know more about percentages follow

brainly.com/question/24304697

#SPJ1

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Rzqust [24]
What a terrible question. I'm sorry you have this teacher. I think the answer they are looking for is 42 even though there's that +/- should be in a parenthesis and then you are rounding 6.5² to 42. Hope this helps
3 0
3 years ago
Plzz help plzz
natka813 [3]

Step-by-step explanation:

1. -4

2. 4

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6 0
3 years ago
Caroline was thinking of a number. Caroline adds 7 to it, then doubles it and gets an answer of 82.8. What was the original numb
Soloha48 [4]

Answer:

n = 34.4

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right  

Equality Properties

  • Multiplication Property of Equality
  • Division Property of Equality
  • Addition Property of Equality
  • Subtraction Property of Equality<u> </u>

Step-by-step explanation:

<u>Step 1: Set Up</u>

Let's let our number be set by variable <em>n</em>.

We add 7 to it: n + 7

We then double that entire expression: 2(n + 7)

That expression is equal to 82.8: 2(n + 7) = 82.8

<u>Step 2: Solve for </u><em><u>n</u></em>

  1. [Division Property of Equality] Divide 2 on both sides:                               n + 7 = 41.4
  2. [Subtraction Property of Equality] Subtract 7 on both sides:                      n = 34.4

∴ Caroline's original number is 34.4.

5 0
3 years ago
Find the value of a that satisfies the congruency of the triangles. In two or more complete sentences, explain the relevance bet
Vinvika [58]

Answer:

a=√2

Step-by-step explanation:

Given : ΔEGF ≅ ΔHKJ

where ∠G=∠K [right angle]

∠E=∠H=45°

And ∠F=180°-∠E-∠G [By angle sum property]

⇒∠F=180°-45°-90°

⇒∠F=45°=∠J  [corresponding parts of two congruent triangles are congruent]

⇒ Both triangles are isosceles right triangles such that

JK=HK=b , EG=GF

and EF=JH

Now JK=HK= EG=GF=3√2

Now GF=3a=3√2

⇒a=√2

5 0
4 years ago
What is the solution to this problem: (4/9)/(2/3)/(5/6)
valentina_108 [34]
(4/9)/(2/3)/(5/6)

First, invert and multiply. / Your problem should look like: \frac{4}{9}   \\  \frac{2}{3} × \frac{6}{5} 
Second, invert and multiply. / Your problem should look like: \frac{4}{9} × \frac{3}{2} × \frac{6}{5} 
Third, apply this rule: \frac{a}{b} × \frac{c}{d} . / Your problem should look like: \frac{4 x 3 x 6}{9 x 2 x 5} 
Fourth, simplify 4 × 3 × 6 to 72. / Your problem should look like: \frac{72}{9x2x5}
Fifth, simplify 9 × 2 × 5 to 90. / Your problem should look like: \frac{72}{90}
Sixth, simplify. / Your problem should look like: \frac{4}{5}

Original answer: \frac{4}{5}
Answer as decimal: 0.8


6 0
3 years ago
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