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3 years ago

1.) In a class of 45 students , 80% received A’s on a Math test . How many students received an A?

Mathematics

1 answer:

kaheart [24]3 years ago

3 0

Step-by-step explanation:

1) 45 times 0.8 (which is equivalent to 80 percent) is 36 students.

2) 15 divided by 0.2 is 75, so she earned 75 dollars

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3 years ago

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3 years ago

Which table represents a direct variation function? A table with 6 columns and 2 rows. The first row, x, has the entries, negati

IceJOKER [234]

Answer:

The correct option is;

A table with 6 columns and 2 rows. The first row, x, has entries, negative 3, negative 1, 2, 5, 10. The second row, y, has entries, negative 7.5, negative 2.5, 5.0, 12.5, 25

Please find attached the graphs of the table data

Step-by-step explanation:

Each of the given table data of in the tables are analysed to find direct variation;

Table 1

x, -3, -1, 2, 5, 10

y, -4.5, -3.0, -1.5, 0.0, 1.5

-4.5/-3 = 1.5 ≠ -3.0/-1 = 3

No direct variation

Table 2

x, -5.5, -4.5, -3.5, -2.5, -1.5

y, 10, 8, 6, 4, 2

10/(-5.5) = -20/11 ≠ 8/(-4.5) = -16/9

However, 10/(-5.5 + 0.5) = -2 = 8/(-4.5 + 0.5) = -2

Adjusted direct variation

Table 3

x, -5.5, -5.5, -5.5, -5.5, -5.5

y, -3, -1, 2, 5 , 10

-3/(-5.5) ≠ -1/-5.5

No direct variation

Table 4

x, -3, -1, 2, 5, 10

y, -7.5, -2.5, 5.0 , 12.5, 25

-7.5/-3 = 2.5 = -2.5/(-1) = 5.0/2 = 12.5/5 =25/10

Direct variation exists

8 0

3 years ago

Read 2 more answers

PLEASE HELP

liq [111]

--------------------------------------------
Question
--------------------------------------------
$3 \times 1000 + 6 \times 100 + 1 \times 10 + 2 \times \frac{1}{10} + 1 \times \frac{1}{1,000}$

--------------------------------------------
Convert the fractions to decimals
--------------------------------------------
$3 \times 1000 + 6 \times 100 + 1 \times 10 + 2 \times 0.1 + 1 \times 0.001$

--------------------------------------------
Evaluate each term
--------------------------------------------
$3000 + 600 + 10 + 0.2 + 0.001$

--------------------------------------------
Add them up
--------------------------------------------
$3610.201$

--------------------------------------------
Answer : 3610.201
--------------------------------------------

3 0

3 years ago