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Alika [10]
4 years ago
12

Without solving determine whether the solution of 1/3x = 21 is greater than or less than 21. Explain

Mathematics
2 answers:
tia_tia [17]4 years ago
5 0
Without solving, the solution is greater than 21.  The can be proven because a fraction of x is equal to 21, therefore x cannot be less than 21.  
lara31 [8.8K]4 years ago
5 0

Solving the linear equation

 \rightarrow\frac{x}{3}=21\\\\\text{Multiplying by 3 on both sides}\\\\\rightarrow\frac{x}{3} \times 3=21\times 3\\\\x=63

→63>21,

that is, solution of the linear equation is greater than 21.

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angle E and angle F are supplementary the measure of angle E is 54 more than the measure of angle F find the measures of each an
Ne4ueva [31]

The measure of angle F is 63°   and the measure of angle E is 117°

<u>Step-by-step explanation:</u>

Given that E and F are supplementary angles which means that the sum of the angles is 180°.

Let  the measure of angle F=x

given that the measure of angle E is 54 more than F

E=54+x

F+E=180°

x+54+x=180°

2x+54=180°

2x=180-54

=126°

x=126/2=63°

F=63°

E=F+54=63+54=117°

4 0
4 years ago
The second statement is the what of the first?
Tamiku [17]

Answer:

  contrapositive

Step-by-step explanation:

The <u>converse</u> statement would be ...

  b ⇒ a

The <u>contrapositive</u> swaps the parts and negates them both:

  ¬b ⇒ ¬a . . . . . matches your given statement

The <u>inverse</u> negates both parts:

  ¬a ⇒ ¬b

A <u>contradiction</u> arises when the implication is false: a is true and b is false.

6 0
4 years ago
Round to the neast 80
Paul [167]
It would still be 80

Example:
<span>14,494 </span>
<span>To round off the height value to the nearest thousand we can use the expanded from to clarity the position of numbers which is: </span>
<span>10, 000 = ten thousand </span>
<span>4, 000 = thousands </span>
<span>400 = hundreds </span>
<span>90 = tens </span>
<span>4 = ones </span>
<span>Here we can notice than four thousand is the value where the nearest thousands is placed. Hence we can round off the number of 14, 494 into 14, 000. Notice 0-4 rounding off rules.<span> </span></span>

3 0
3 years ago
Read 2 more answers
How can 12×50 help you find 12×49?
n200080 [17]
It will help because than you could subtract 12 to get the answer of 12 x 49. You just have to make sure you do the problem right.
7 0
3 years ago
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Every Friday for 8 weeks Kylan withdrew $35.50 from his savings account. How much did he withdrew in all?
Marina CMI [18]

Answer:

$284

Step-by-step explanation:

You multiply 35.50 by 8

8 0
3 years ago
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