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lakkis [162]
3 years ago
10

Find a number less than 19 that has more factors than 19,21,23and 25

Mathematics
1 answer:
katen-ka-za [31]3 years ago
7 0
A <em>factor</em> is a number that your number is divisible by.

19 has two factors: 19 and 1.
23 also has two factors: 23 and 1.

21 has four factors: It is divisible by 21 and 1, but also by 3 and 7.
25 has three factors: It is divisible by 25, 1, and 5.

We need a number less than 19 that has five or more factors.
What we can do is multiply a bunch of numbers together (so that we know that our number will be divisible by them) to give it a lot of factors.

Let's try 2 × 2 × 3. This gives us 12.

12 has <em>six</em> factors: 12, 1, 2, 6, 3, and 4.
You might be interested in
How many solutions does y=2x+2,4x-2y=4 have?
Leni [432]
Write as a system y= 2 x + 2.4x - 2y = 4

{y = 4
{2x + 2.4x - 2y = 4

Substitute the value of y into the equation

2x + 2.4x - 2 x 4 = 4

Solve the equation

x= 30/ 11

A possible solution is

(x, y) = (30/11, 4)

Check the solution

4 = 2 x 30/11+ 2.4 x 30/11 - 2 x 4 = 4

Simplify the expression

4 = 4 = 4

The ordered pair is a solution

(x, y) = ( 30/11, 4)



8 0
3 years ago
Mariah drives 800 miles to California. The trip takes her 20 hours. She uses 50 gallons of gas on the trip, which cost her $125.
spin [16.1K]
1. 40 mph. 2. 16 3. 2.50
7 0
2 years ago
Read 2 more answers
-x/6 +10 = 11 <br><br> I need the value for x it’s either <br><br> -6 or 6
Crazy boy [7]

Answer:-6

Step-by-step explanation:

use pathway with a m

8 0
3 years ago
1. The aspect ratio of a display is the proportional relationship between the width of a
Shkiper50 [21]

Answer:160 inches

Step-by-step explanation: it cant be less som wer left with 97 and 160 97 is not 16:9

8 0
3 years ago
Determine the value of k for which -3x^2+12x+k=0 has no real roots. ​
Crazy boy [7]

Answer:

K<-12

Step-by-step explanation:

+ For that, we need the delta negatif.

+ The delta= b^2-4ac=12^2-4(-3)(k)=144+12k<0

Then, 12k<-144 (divise both sides by 12)

we have k<-12

Or an other way:

-3x^2+12x+k=0  (divise both sides by -3)

x^2-4x-k/3=0

x^2-4x+4 -4-k/3=0

(x-2)^2=4+k/3

Now , we need 4+k/3<0, k/3<-4 or k<-12

Hope you understand.

4 0
3 years ago
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