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6X + 8 (30-x) = 220 who can tell me how to solve this equation?
6x+8（30-x）=220
6x+240-8x=220
6x-8x+240=220
-2x+240=220
-2x=220-240
-2x=-20
x=-20x（-½）
x=10
How to solve the equation 6x = 3 (6-x)?
emergency
6x=18-3x
9x=18
x=2
How to solve the equation of 1.6x-30 = x
1.6x-30=x
1.6x-x=30
0.6x=30
x=30÷0.6
x=50
How to solve the equation 16x6-6x = 30
96-6x=30
6x=96-30
6x=66
x=11
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What are the concepts and definitions in primary school mathematics
The concepts and definitions in primary school mathematics need to be detailed and comprehensive
Addition
1 / additive exchange rate / 2 / additive combination rate
multiplication
1 / multiplicative exchange rate / 2 / multiplicative combination rate / 3 / multiplicative allocation rate
About sports English composition 60 words, urgent!
Please. Can you give me the answer by tomorrow!
I am a healthy girl ,because i like exercising,it’s good for our body.And my favorite exercise is swimming.It ’s really interesting .every summer ,i always swim in the sea ,it makes me feel comfortable ,and i can swim very well ,my friend said that i like a fish in the sea.but some people may say it is easy to hurt while swimming.Yes , that’s right.But let’s face it,the advantages of sports far outweigh any risk of doing sports.Sports measure up to the expectations of people.Most of us love sports.We should follow the lead of sports athletes,as sports play an essential role in our life.Plenty of physical exercise will help you keep in shape.
Original + patchwork
Give me face
As shown in the figure, in △ ABC, ab = 17cm, BC = 16cm, ad = 15cm, is △ ABC an isosceles triangle? Why?
In RT △ ADC, AC = ad2 + DC2 = 152 + 82 = 17cm. In other words, △ ABC is an isosceles triangle
Fifth grade mathematics (common factor and greatest common factor 22)
If a is divided by B = 4 (A / B is an integer), then the greatest common factor of a and B is ()
5
The area ratio of two similar triangles is 9:25. The perimeter of one triangle is 36cm, and the perimeter of the other triangle is 36cm______ ．
∵ the area ratio of two similar triangles is 9:25, ∵ their similarity ratio is 3:5, ∵ their perimeter ratio is 3:5, ∵ the perimeter of one triangle is 36cm, ∵ if this triangle is a large triangle, then the perimeter of the other triangle is 1085; if this triangle is a small triangle, then the perimeter of the other triangle is 60. ∵ the perimeter of the other triangle is 60 or 108 5. So the answer is: 60 or 1085
The greatest common divisor of two numbers is 6 and the least common multiple is 108. One of them is 12 and the other is 10______ ．
108 △ 12 = 99 × 6 = 54 answer: the other number is 54
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