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Levart [38]
3 years ago
8

2x – yl. when x = 3 and y = 10​

Mathematics
1 answer:
iragen [17]3 years ago
5 0

Answer:

Step-by-step explanation:

Here you go mate

Step 1

2x-y  Equation/Question

Step 2

2x-y  Evaluate for x and y

2(3)-10

Step 3

2(3)-10  Simplify

6-10

answer

-4

Hope this helps

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You invest $350 in an account with an interest rate of 1.2% compounded continuously. How much money would be in the account afte
In-s [12.5K]
You will get about 1300 a year

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3 years ago
What is the value of x
inna [77]
3+6x+3x+ 6 = 180
9x + 9 = 180
9x =  171
x = 19
7 0
3 years ago
Pls help me this is due tomorrow
Anna [14]

Step-by-step explanation:

Claim: There's 14 Goats and 9 Chickens!!

Data:

Working with the Provided Information.

Let the Number of goats be x

let the Number of Chickens be y

x + y = 23..... (i)

Since the goat Possesses Two Pair of Legs... Which is a Total of 4 Legs... We say Let its Contribution be 4x.

The Chicken has Only a Pair Of Legs...Which is a total of 2 legs.... We say let its contribution be 2y

4x + 2y = 74 .....(ii)

BRINGING BOTH EQUATIONS TOGETHER.

x + y = 23

4x + 2y = 74

From Eqn i

x= 23 - y

Substitute into eqn ii

4(23 - y ) + 2y = 74

92 - 4y + 2y = 74

92 - 2y = 74

2y = 92 - 74

2y = 18

y= 9.

Substitute y into any of the eqns to get x

x + y = 23

x + 9=23

x = 23 - 9

x = 14

This simply proves that there are 14 Goats and 9 Chickens!!!.

HAVE A GREAT DAY!

7 0
3 years ago
In which quadrant is the number –14 – 5i located on the complex plane?<br> I<br> II<br> III<br> IV
Dmitry [639]

Answer:

III

Step-by-step explanation:

- 14 tell you that you should be moving left of (0,0) That makes the answer either in quad 2 or quad 3.

- 5i tells you that you are moving down. That tells you that you are moving down.

You are in quad III. It the question was -14 + 5i, you would be moving left and up. That would put you in quad II.

7 0
3 years ago
Read 2 more answers
SCALCET8 3.9.004.MI. The length of a rectangle is increasing at a rate of 7 cm/s and its width is increasing at a rate of 8 cm/s
notka56 [123]

Answer:

The area of the rectangle is increasing at a rate of 169 cm²/s

Step-by-step explanation:

Given;

increase in the length of the rectangle, \frac{dL}{dt} = 7 \ cm/s

increase in the width of the rectangle, \frac{dW}{dt} = 8 \ cm/s

length, L = 15 cm

width, W = 7 cm

The increase in Area is calculated as;

Area = Length \times Width\\\\A = LW\\\\\frac{dA}{dt} = L(\frac{dW}{dt} )\ + \ W(\frac{dL}{dt} )\\\\\frac{dA}{dt} = 15 \ cm(8\ \frac{ cm}{s} ) \ + \ 7 \ cm(7\ \frac{ cm}{s} ) \\\\\frac{dA}{dt} = 120 \ cm^2/s \ + \ 49 \ cm^2/s\\\\\frac{dA}{dt} = 169 \ cm^2/s

Therefore, the area of the rectangle is increasing at a rate of 169 cm²/s

5 0
3 years ago
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