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3 years ago

Help help help help (-_-)

Mathematics

1 answer:

g100num [7]3 years ago

4 0

Answer:

Step-by-step explanation:

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Use y=2.5x+65 to find y when x=8 show work

harkovskaia [24]

Answer: y=85

Step-by-step explanation: Substitute all x's in the equation with 8. y=2.5(8)+65. And solve y=85

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2 years ago

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54 out of the 60 magazines at the bookstore are women's magazines. What percentage of the magazines at the bookstore are women's

Nataly_w [17]

Answer:

Step-by-step explanation:

for percentage

$\frac{54}{60}$ ×100

= 0.9×100

=90

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3 years ago

Write 0.0002839 in scientific notation.

Anika [276]

Answer:2.84 x 10-4

There you go!

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3 years ago

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I need help please. 2nd box: meters, cubic meters, or square meters.

Fudgin [204]

Answer:

I believe it is meters

Step-by-step explanation:

I think so because the rectangle is labeled with meters

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3 years ago

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Devisibility rules for 3, 6, and 9

fenix001 [56]

Answer:

★ Divisibility rule for 3 -

If the sum of all the digits divisible by 3 then the number is divisible by 3.

Here, we take an example for better understanding -

Example 1 - 3525

Add up the digits - 3 + 5 + 2 + 5

→ 15

As, 15 is divisible by 3. So, 3525 is a factor of 3.

★ Divisibility rule for 6 -

A number is to be divisible by 6 , if the number is also divisible by 2 and 3.

Example 2 - 132

Add up the digits = 1 + 3 + 2 = 6

As, 6 is divisible by 2 and it's also divisible by 3. Then, 132 is a factor of 6.

★ Divisibility rule for 9 -

If the sum of all the digits is divisible by 9 then the number is divisible by 9. Just like we'd in 3.

Example 3 - 1052

Add up the digits - 10 + 5 + 2 = 17

As, 17 is not divisible by 9. So, 1052 is also not divisible by 9.

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3 years ago