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adelina 88 [10]
3 years ago
14

Solve by addition -8x+2y=14 -4x+y=4​

Mathematics
2 answers:
Mumz [18]3 years ago
6 0

Answer:Add the equations in order to solve for the first variable. Plug this value into the other equations in order to solve for the remaining variables.

No solution

Step-by-step explanation:

lana66690 [7]3 years ago
4 0

Answer:

Im not sure how to solve by addition but if you solve its it is no solution

Step-by-step explanation:

Hope this helps

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luna ray has 1 orange pick for every 2 green picks.How manu green picks does luna have if she has 12 total picks
Bess [88]
This is how you do it!

So, There is a ratio of 1:2 for the orange to green.
This means that e can write an equation like this:

Let x be the orange picks

x + 2x = 12
3x = 12
x = 4

This means that there are 4 orange picks, and also 8 green picks

Now we can check that by simplifying the ratio --> 4:8 = 1:2

Therefore, your answer would be 8 green picks

Hope this helped!
3 0
3 years ago
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What's 60 in the ratio 1 : 4
GalinKa [24]

Answer:

15/240 = 5/80= 1:16. helpful answer

3 0
3 years ago
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Find the value of X in each of the given triangles.​
ki77a [65]

<DSR + <SRD + <RDS = 180° (Angle sum property)

2x + x +3x = 180°

6x = 180°

x = 180°/6

x = 30°

So, <SRD = x = 30°

<RDS = 3x = 3(30°) =90°

<DSR = 2x = 2(30°) = 60°

Hope it helps !

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Jai hind !

8 0
3 years ago
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The side length of an equilateral triangle is 6 cm. What is the height of the triangle?
solniwko [45]
Correct me if I am wrong but an equilateral has the same length on each side so wouldn’t it be 6 cm?
3 0
3 years ago
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Find the volume V of the solid obtained by rotating the region bounded by the given curves about the specified line.
Elza [17]

Answer:

\frac{\pi}{18}(e^{10} - e^8) \approx 3324

Step-by-step explanation:

We begin by solving for x in term of y

y = ln(3x)

e^y = 3x

x = \frac{e^y}{3}

We can use the disk method to calculate the volume of rotation around the y axis

V = \int\limits^5_4 {\pi r^2} \, dy

Where r = x = \frac{e^y}{3}

V = \int\limits^5_4 {\pi \left(\frac{e^y}{3}\right)^2} \, dy\\V = \frac{\pi}{9}\int\limits^5_4 {e^{2y}} \, dy\\\\V = \frac{\pi}{9}\left[\frac{e^{2y}}{2}\right]^5_4\\V = \frac{\pi}{9}(e^{10}/2 - e^8/2) = \frac{\pi}{18}(e^{10} - e^8)\\ V = \frac{\pi}{18}19045.5 \approx 3324

4 0
3 years ago
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