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Fudgin [204]
3 years ago
13

26% of 78 Pleaseee help

Mathematics
1 answer:
Radda [10]3 years ago
8 0

Answer:

20.28

Please look at the drawing

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Find the value of x. No calculator needed. Leave the square root as a part of your answer.
aleksklad [387]

Answer:

5/V2=2.5×V2

Step-by-step explanation:

This is an isoscelle right triangle:

x²+x²=5²

2x²=5²

x=5/V2=5×V2/2=2.5×V2

where V2=sqrt(2)

4 0
3 years ago
Find the greatest common factor of 12a^3c and 15ab^3
storchak [24]

The greatest common factor of 12 and 15 should be 3 since the only factors of 15 are 1,3,5,and 15 and 3 is the only factor that 15 shares with 12

7 0
4 years ago
Subtract using a number line.
Maurinko [17]

Answer:

The answer is 7

Step-by-step explanation:

2 negative numbers would equal a positive number.

so,Bascially it's like your just taking 8 away from 1.

7 0
4 years ago
Read 2 more answers
If n is a positive integer and r is the remainder when (n – 1)(n + 1) is divided by 24, what is the value of r?
11Alexandr11 [23.1K]

(1) n is not divisible by 2 --> pick two odd numbers: let's say 1 and 3 --> if , then and as zero is divisible by 24 (zero is divisible by any integer except zero itself) so remainder is 0 but if , then and 8 divided by 24 yields remainder of 8. Two different answers, hence not sufficient.

(2) n is not divisible by 3 --> pick two numbers which are not divisible by 3: let's say 1 and 2 --> if , then , so remainder is 0 but if , then and 3 divided by 24 yields remainder of 3. Two different answers, hence not sufficient.

(1)+(2) Let's check for several numbers which are not divisible by 2 or 3:

--> --> remainder 0;

--> --> remainder 0;

--> --> remainder 0;

--> --> remainder 0.

Well it seems that all appropriate numbers will give remainder of 0.

4 0
4 years ago
Simplify the expression -3 ÷ (-2/5 ​
Harlamova29_29 [7]

Answer:

7.5

Step-by-step explanation:

To solve this expression, we can use PEMDAS or order of operations.

<u>Parenthesis</u>

<u>Exponents</u>

<u>Multiplication>Division (Depends on which comes first from left to right)</u>

<u>Addition>Subtraction (See Multiplication>Division)</u>

So First, lets solve the <u>Parenthesis</u>. -2/5=-.4

So now, our equation is -3/-.4

There is no exponents or multiplication, so lets just <u>Divide</u>.

-3/-.4=7.5

The solution is 7.5

Hope this helps!

6 0
3 years ago
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