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Valentin [98]
3 years ago
6

3 + (5 + 7) = (3 + 5) + 7

Mathematics
1 answer:
Ivahew [28]3 years ago
4 0

Answer:

true

Step-by-step explanation:

3 + (5 + 7) = (3 + 5) + 7

3 + (12) = (8) + 7

15 = 15

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An instructor asked her students how much time (to the nearest hour) they spent studying for the midterm. The data are displayed
BARSIC [14]

Based on the data displayed in the histogram, the percentage of students who study 2 or more hours for the midterm is 88%.

<h3>What percentage study 2 hours or more?</h3>

First, find the number of students studying:

= 3 + 9 + 6 + 3 + 2 + 1 + 1

= 25

The number of students studying 2 or more hours for the exam are:

= 9 + 6 + 3 + 2 + 1 + 1

= 22 students

The percentage studying for two hours or more is:

= 22 / 25

= 88%

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8 0
1 year ago
Solve for x 7(x+2) =6(x+5)
Luden [163]

Answer:

Step-by-step explanation:

7x + 14 = 6x + 30

x + 14 = 30

x = 16

6 0
3 years ago
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Zoey needs at least $30 to buy a gift. She has $12. Which inequality could Zoey use to find out how much more money (m) she need
artcher [175]
30 ≤ 12 + m so d). 

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7 0
3 years ago
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What is the solution of x=2+√x-2 ?
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C. \: x = 2 \: or \: x = 3
3 0
3 years ago
A dragonfly can beat its wings 30 times a second. write an equation in slioe intercept form that shows the relationship between
ivanzaharov [21]

Answer:

1800

Step-by-step explanation:

Since there is the tragon fly beat his wings 30 times a second ,there is 60 hundredths of a second in a second multiply 30 x 60 and you should get 1800.

  1. mulitiply 0x0 = 0

     2.  mulitiply 6x0=0

        3. multiply 3x0=0

          4. mulitiply 6x3 = 18

            5. have 1800

or you can just multiply 6x3 = 18 and add the two zeros

6 0
3 years ago
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