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BARSIC [14]
3 years ago
5

Miranda is 6 years older than her brother. The sum of their age is 20. What is

Mathematics
2 answers:
masha68 [24]3 years ago
5 0

Answer:

she is 13

Step-by-step explanation:

her brother is 7.

13+7=20

Ymorist [56]3 years ago
5 0

Answer

miranda is 13 and her brother is 7

Step-by-step explanation:

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How will knowing plants needs help you choose a plant to help stop soil from washing away
algol13

Answer:

Plants are restrictive to flow of eroding agents, bind soil in their roots.

Step-by-step explanation:

Soil Erosion is the wearing away of the topmost fertile layer of soil. Topsoil gets eroded mainly due to wind, water agents.

Plants help to prevent soil from erosion in following ways :

  • Plants act as restriction to the speed of air & water, which are the main soil erosion agents. It also lets rain water get soaked into the ground water.
  • Plants roots also bind the soil tightly, & make soil stronger to be eroded by erosive agents - water, air. Eg : Shrubs , trees, grass & ground are important soil erosion preventive plants, because of their extensive root systems.

8 0
3 years ago
A package of cookies contains 6 cookies. Each package of cookies costs $1.49.​ A function, f(x), is written to represent the cos
Ronch [10]
You define a function f(x) which gives the cost of buying x packages of cookies. You are asked for the domain of the function. That is, what values can x take on? x is the number of packages bought.

It makes no sense to buy a negative number of packages. It also makes no sense to buy 1/2 a package or 3/4 of a package as the store won’t sell you a fraction of a package. Try going to the store and buying half a package of oreo cookies. I doubt you’ll get very far :)

So it makes sense to buy 0, 1, 2, 3, 4, ... boxes of cookies. These are whole numbers. So the domain is the set of whole numbers. You could also write the domain like this {0, 1, 2, 3, ...} making sure to use the curly brackets as those denote a set. 



4 0
3 years ago
Please help, thank you.
AlekseyPX
We need the radius to find the surface area. Since we have the circumference we can use that to find the radius.

C = 2πr
23 = 2(3.14)r
23 = 6.28r
23/6.28 = r 
3.66 = r

Now use the radius to find the surface area.

SA = 4πr²
SA = 4(3.14)(3.66)²
SA = 168.33 

Surface area is C. 168 cm²

Hope this helps :)
8 0
3 years ago
Determine if the two lines are parallel, perpendicular, or neither. Show the work used to get your answer
vichka [17]

Answer:

Perpendicular

Step-by-step explanation:

[1] We need to find the slopes of both lines! First, we will put them into standard form and then solve.

Standard form: y=mx+b

(1) 10x + 2y = 4

(subtract 10x from both sides)

2y = -10x + 4

(divide both sides by 2)

y = 5x+2

The slope is 5

(2) 5y - x = -5

(add x to both sides)

5y = x - 5

(divide both sides by 5)

y = \frac{1}{5} x - 1

The slope is one-fifth

[2] Then, we need to determine if they are parallel, perpendicluar, or neither.

- If they are parallel they will have the same slope

- If they are perpendicular they will have exact opposite slopes

() Line 1 has a slope of 5 and line two has a slope of one-fifth. These are exact opposites so the lines are perpendicular.

(I hope this is correct and helped, have a nice day!)

3 0
3 years ago
What is the value of x?<br> 60"<br> 95<br> A. 250<br> B. 350<br> C. 60°<br> D. 1550<br> PREVIOUS
gregori [183]

Answer:

it's B ==35

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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