Square root of 19 is between what two decimal numbers to the nearest tenth

Mathematics

2 answers:

Ludmilka [50]3 years ago

8 0

It’s in between 4.3 and 4.4

mojhsa [17]3 years ago

6 0

Answer:

4 and 5

Step-by-step explanation:

4.35 is in between 4 and 5

stan ateez

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Triss [41]

Answer:

Likely

Step-by-step explanation:

8 0

2 years ago

Given the equation 5x − 4 = –2(3x + 2), solve for the variable. Explain each step and justify your process.

blagie [28]

A.
$5x-4=-2(3x+2) \ \ \ \ \ \ \ \ \ |\hbox{expand the bracket} \\
5x-4=-2 \times 3x-2 \times 2 \\
5x-4=-6x-4 \ \ \ \ \ \ \ \ \ \ \ \ \ |\hbox{add 6x to both sides} \\
11x-4=-4 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ |\hbox{add 4 to both sides} \\
11x=0 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ |\hbox{divide both sides by 11} \\
x=0$

B.
$3(2x-4)=5x-1 \\
6x-12=5x-1 \\
\boxed{11x-12=-1} \Leftarrow \hbox{the first mistake} \\
11x=11 \\
\boxed{x=11} \Leftarrow \hbox{the second mistake}$

Megan's solution isn't correct.
The first mistake: she subtracted 5x from the right-hand side of the equation, but added 5x to the left-hand side.
The second mistake: she divided the right-hand side of the equation by 11, but didn't divide the left-hand side.

The correct solution:
$3(2x-4)=5x-1 \ \ \ \ \ \ \ \ \ \ \ |\hbox{expand the bracket} \\
3 \times 2x+3 \times (-4)=5x-1 \\ 6x-12=5x-1 \ \ \ \ \ \ \ \ \ \ \ \ \ \ |\hbox{subtract 5x from both sides} \\
x-12=-1 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ |\hbox{add 12 to both sides} \\
x=11$

3 0

2 years ago

Seven less than twice a number is 5

marin [14]

Yes, i believe so because u can count back twice and u will get 5. You could al so do: 7-2=5. Hope this helps

8 0

3 years ago

What is the equivalent ratio of 9 to 11

Zepler [3.9K]

9 to 11 = 9:11

If u times 2 you will get 18:22 which is equivalent to 9:11

Next u could do 18:22 times 2 to get another equivalent answer to 9:11