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bazaltina [42]
3 years ago
14

Cries In didn’t pay attention in class in my lower grades

Mathematics
1 answer:
seraphim [82]3 years ago
4 0
Answer:

a. 32

b. 48

Step-by-step explanation:

Forty percent of the 80 birds were robins.

a. How many of the birds were robins?

b. How many of the birds were not robins?
___________________
Forty percent of the 80 birds that were robins = 40%/100%

To find how many of the birds were robins, use part/whole = part/whole

40%/100% = ?/80

This will tell us how many exact robins were there

To solve, multiply 80 by 40 and then divide all by 100

80 x 40 ÷ 100 = 32

so 32 of the birds were robins

now for b since 32 of the birds were robins out of 80 birds, subtract 32 from 80.

80 - 32 = 48
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J because this is a quadratic function which is shaped like a u upward
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The area of the triangle below is 8.91 square inches. What is the length of the base?
Studentka2010 [4]

Answer:

8.1 inches

Step-by-step explanation:

Area of a triangle = ½ × base × height = Area

Rearranged =

\frac{area}{ \frac{1}{2}  \times height}

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6 0
3 years ago
Read 2 more answers
Help me please ASAP!
Bumek [7]

216 = 6^{4x+ 11}


6^3 = 6^{4x+ 11}


3 = 4x + 11


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Answer: (c) x = -2

8 0
3 years ago
A car travels at an average speed of 64 miles per hour. how many miles does it travel in 3 hours and 45 minutes
ELEN [110]
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5 0
3 years ago
Read 2 more answers
Mr. smith has 5 courses he teaches at the community college. his course a has 102 students with an average tardiness of 3 studen
Furkat [3]

The percentage of tardiness among the 102 pupils is 2.94.

<h2>Calculation of the percentage</h2>

According to the query,

Course A: Total number of students = 102

                   Number of tardy students = 3

Percent of students tardy in course A = (number of tardy students/total  

                                                                   number of students) * 100

  =(3/102)*100

  = 2.941

  ≈2.94

In case of course B: Total number of students = 85 & tardy student = 5

So, the percent of tardy student = (5/85)*100 = 5.88 %

Therefore, it is concluded that the percentage of student tardiness in course A is 2.94.

Learn more about the percentage here:

brainly.com/question/92258

#SPJ4

5 0
2 years ago
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