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Alex17521 [72]
3 years ago
8

ANDWER CHOICES: 14cm 20cm 8cm 6cm I NED HELP ASAP!!!!

Mathematics
1 answer:
meriva3 years ago
7 0
20 cm is the answer to the question
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3x+1 = y 2x+3y = 14<br> please explain the steps if you can as well
Likurg_2 [28]
3x + 1 = y
2x + 3y = 14

To solve this system of equations, we are going to use the substitution method.  Substitution the equation where the variable is isolated into the second equation.  In this system of equations, y is isolated, so we will replace y in the second equation with 3x + 1.

2x + 3y = 14
2x + 3(3x + 1) = 14
2x + 9x + 3 = 14
We will add the like terms and subtract 3 from both sides of the equation.
11x + 3 = 14
11x = 11
x = 1
In this system of equations, x is equal to 1.  Now we will go back and solve for y, plugging in 1 for x.
3(1) + 1 = y
2(1) + 3y = 14

3 + 1 = y
2 + 3y = 14

4 = y
3y = 2

4 = y
4 = y

The solution to this system of equations is (1, 4).

8 0
3 years ago
Help is needed :) not sure what to do?
myrzilka [38]
The answer to the question is d
8 0
3 years ago
Describe the number 78 in two different ways using tens and ones
zepelin [54]
7tens8ones
6tens18ones
5tens28ones
4tens38ones
3tens48ones
2tens58ones
1tens68ones
0tens78<span>ones</span>
4 0
3 years ago
Find the area of the shaded region.
Arisa [49]
The area of the shaded region is the square subtract the circle. The radius of the circle is the diameter/2
Area of circle= pi x radius x radius
=3.14 x 5 x 5 = 78.5
Area of the square = side x side
= 10 x 10 = 100
Area of shaded 100 - 78.5 = 21.5
And don’t forget the unit of measurement (meters)
8 0
3 years ago
What is 17/3 in a percentage
Aneli [31]
First, convert 17/3 to an improper fraction. 17/3 becomes 5 2/3.
Then convert 5 2/3 to a decimal.

5 2/3 becomes 5.666...

Then convert the decimal to a percent.

5.666... becomes approximately 566.66%
4 0
3 years ago
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