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Nata [24]
3 years ago
13

(20 POINTS) Which of the following is a rational number? Please solve fast!

Mathematics
1 answer:
KATRIN_1 [288]3 years ago
6 0

Answer: A.

Step-by-step explanation:

The square root of 144 is 12

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Calculate the perimeter and area for the parallelogram if a = 2.8 ,b = 16.5 and h = 11.5
Nana76 [90]

Perimeter = 2(a+b)

= 2(2.8+16.5)

=2(19.3)

Perimeter = 38.6

Area=base x height

=2.8 x 11.5

=32.2

3 0
3 years ago
Read 2 more answers
Find four consecutive numbers whose sum equals 218
Softa [21]

Answer: 53, 54, 55, and 56

Step-by-step explanation: This problem states that the sum of 4 consecutive numbers is 218 and it asks us to find the numbers.

4 consecutive numbers can be represented as followed.

X ⇒ <em>first number</em>

X + 1 ⇒ <em>second number</em>

X + 2 ⇒ <em>third number</em>

X + 3 ⇒ <em>fourth number</em>

Since the sum of our 4 consecutive numbers is 218, we can set up an equation to represent this.

X + X + 1 + X + 2 + X + 3 = 218

On the left side of the equation, we can combine our x's and our numbers.

4x + 6 = 218

      -6     -6   ← <em><u>subtract 6 from both sides of the equation</u></em>

4x = 212

÷4    ÷4   ← <u><em>divide both sides of the equation by 4</em></u>

 <u>X = 53</u>

<u />

X ⇒ <em>first number   = 53</em>

X + 1 ⇒ <em>second number   = 54</em>

X + 2 ⇒ <em>third number   = 55</em>

X + 3 ⇒ <em>fourth number   = 56</em>

<em />

<em>Therefore, our 4 consecutive numbers are </em><em>53</em><em>, </em><em>54</em><em>, </em><em>55</em><em>, and </em><em>56</em><em>.</em>

4 0
3 years ago
4a + 3 - 9 = -7 + 2 + a
rjkz [21]
4a + 3 - 9 = -7 + 2 + a
4a - 6 = -5 + a
4a - a = -5 + 6
3a = 1 / : 3
a = 1/3

6 0
3 years ago
Read 2 more answers
A glacier in Alaska moves about 29.99 a day about how much further will a move in a thousand days and it will move in a hundred
Lelu [443]
Try this:  (29.99 units/day)(1000 days) = 29990 units.

Could you possibly include the given units of measurement in this post?

5 0
3 years ago
Pleaseeeeeee help verrrrryyyyy confuseddddddd on #3
Dmitriy789 [7]
X (adult)= 130 
y (child)= 392
(hope you can see it...)

5 0
3 years ago
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