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nekit [7.7K]
3 years ago
12

Witch shape does it make​

Mathematics
1 answer:
Serjik [45]3 years ago
4 0

the answer is volume

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The sum of two numbers is 20 the difference between three times the first number and twice the second is 40 find the smallest nu
Dmitriy789 [7]

Answer:

The smallest number is 0

Step-by-step explanation:

x + y = 20

3x - 3y = 40

solving these two equations

x = 0

y = 20

7 0
3 years ago
What is the sum of the rational expression below 3x/x+9 + x/x-4
fredd [130]
The answer to the question

6 0
4 years ago
Solve the simultaneous equations
Contact [7]

Answer:

The solution for given system of equations is: x = 6 and y = 3

Or

(6,3)

Step-by-step explanation:

Given equations are:

3x+4y=30\ \ \ Eqn\ 1\\3x-y=15\ \ \ \ Eqn\ 2

There are three methods to solve simultaneous equations

  1. Elimination
  2. Substitution
  3. Co-efficient method

We will use the elimination method as the coefficients of x in both equations are already same

Subtracting equation 2 from equation 1

3x+4y - (3x-y) = 30-15\\3x+4y-3x+y = 15\\5y = 15\\\frac{5y}{5} = \frac{15}{5}\\y = 3

Putting y = 3 in equation 2

3x-3 = 15\\3x = 15+3\\3x = 18\\\frac{3x}{3} = \frac{18}{3}\\x =  6

Hence,

The solution for given system of equations is: x = 6 and y = 3

Or

(6,3)

7 0
3 years ago
Yosef typed a 36-word paragraph in 23 minute. What is his typing speed, in words per minute? Solve the problem and describe in w
alexandr1967 [171]

Answer:

36/23

Step-by-step explanation:

speed of typing = words typed/minutes

=36/23

7 0
3 years ago
Alexa has $300 in her bank account. Each week for 5 weeks she spends 18 dollars on things. How much money does she have after 5
Pie
$210 is what she has in her bank account after 5 weeks.
18*5 =90
300-90= 210
4 0
3 years ago
Read 2 more answers
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