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Alecsey [184]
3 years ago
15

Twice the sum of 15 and x as an algebraic expression

Mathematics
2 answers:
earnstyle [38]3 years ago
8 0

Answer:

skjzjzjajzjs hajsjsjajjsjsa annsnsnsnnsnsns snsnnsjsjnee ejjejen

Aloiza [94]3 years ago
7 0

Answer:

2 (15x)

Step-by-step explanation:

I didn't completely get your answer but if you want it in numerical from its here. 2 x (15x.)

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I have one more question I can figure out how to get the answer via the calculator but I'm not sure how I got there
valentinak56 [21]

Answer:

43.6 * 2.94 = 436/10 * 294/100 = (436 * 294)/1000 = 128184/1000 = 128.184

4 0
3 years ago
40.51x+12.45y=666.64
irga5000 [103]

Answer:

The graph of the equation 40.51x+12.45y=666.64 is attached with the answer where the horizontal axis represents the X axis and the vertical axis represents Y axis.

To plot the graph physically just find two points lying on the line. Mark the points on the graph sheet and then join them. This will give you the line represented by the equation.

To find points on the line assume the value of any one variable, substitute it in the equation, then solve the equation to find the value of other variable. For example : assume y = 1; substitute the value of y in the equation;

⇒ 40.51x + 12.45×1 = 666.64

⇒ 40.51x = 666.64 - 12.45

⇒ 40.51x = 654.19

⇒ x = \frac{654.19}{40.51}

⇒ x ≈ 16.149

Therefore point ( 16.149 , 1 ) lie on the graph of the equation.

***Only two points are required to plot this graph just because it represents a straight line, that we can conclude just by observing the equation. If in an equation the power of x is 1 or 0 and power of y is 1 or 0 then only it will represent a straight line in 2-D plane.***

5 0
3 years ago
Wat is the answer for this question -x2 + 5x + 24.
Helen [10]

Answer:

31

Step-by-step explanation:

5 0
3 years ago
What are the unit rates for  4/8 , 5/25, 36/6, 14/21, 18/30, 28/16, 56/35, 45/108, 12/42, 39/26
Artyom0805 [142]
How you find those is you just divide the rate and what ever answer you get you add a one on the bottom

Example: 1. 4/8
2.4÷8= 2
3. 2/1
5 0
3 years ago
10 i
salantis [7]

Answer:

opposite sides parallel and congruent theorum

Step-by-step explanation:

4 0
2 years ago
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