The mean can be found by adding the two numbers and dividing by 2
let the second number be y
(x + y)/2 = 1/2x + 1
solve for y
multiply each side by 2
x + y = 2(1/2x + 1)
distribute
x + y = x + 2
subtract x on both sides
y = 2
ANSWER: the second number is 2
Width: x
Length: 2x
Perimeter=2x+2x+x+x=6x
32 cm more than width means x+32
6x=x+32
5x=32
x=6.4
Dimension is 6.4×12.8 (width×length)
Answer:
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Step-by-step explanation:
Move 9 to right hand side and change it's sign
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Subtract 9 from 17
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Divide both sides of the equation by -4
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Calculate
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Hope I helped!
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A quadrilateral is a shape with four sides
We have two parallel sides with length 7cm and another two parallel sides with length 4cm
Four right angles
The shape is a rectangle
Answer:
See step by step explanation
Step-by-step explanation:
1. a<14
2. m </ 25
3. n >/ 7
