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adell [148]
3 years ago
9

Solve using proportions

Mathematics
1 answer:
kondor19780726 [428]3 years ago
3 0
4:3 means 4/7 of the class are men

4/7 of 490 is 280
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What is the sum for 2x+10?
Temka [501]

Hey there!

2x + 10

= 2(x + 5)


BECAUSE….

= 2(x + 5)

= 2(1x + 5)

= 2(1x) + 2(5)

= 2(x) + 2(5)

= 2x + 10


2x + 10 = 2x + 10 is true ✔️


Therefore, your answer is: 2(x + 5)


Good luck on your assignment & enjoy your day!


~Amphitrite1040:)

4 0
2 years ago
30 is what percent of 64....
Kryger [21]
Take the 30  and divide it by 100 and you get the percent.
Ex. 30/100 = .3

Then multiply 64 by the percent.
64 x .3 = 19.20
6 0
3 years ago
How would you simplify the expression represented by the diagram below?
34kurt
I can’t see the diagram. sorry:(
8 0
3 years ago
How to solve 5 - 16 tenths
____ [38]
Well you have 5 - 16. Now 16-5 is 11. It equals ---------eleven
4 0
3 years ago
Read 2 more answers
PLease help me in my maths homework I dont really understand it. Calculate the area of the trapezium CDEF
alexira [117]

Answer:

48

Step-by-step explanation:

first, since its a rectangle, the parallel sides are equal making the top of the rectangle 9cm. the to fins the sides, we do 9+9( because of the sides o the rectangle) which gives us 18. then we need to do 28-18 to find out how much both the other sides of the rectangle are, which is 10. now we divide that by 2 since we want one for each side main the measurements for the rectangle are 9cm by 5 cm. now since to find out the area of aa trapezium, we use the formula   A=1/2(a+b)h which means we add the 2 parallel sides of the rectangle which are 5 and 9. we got the 9 from figuring out the rectangle remember? now 9+5=14. next we times it by the height which will be 6 since 11-5 is 6. we got the 5 from figuring out the rectangle above. now 14x6 is 84. however what about then 1/2 part in the formula?. well, all we do now is divide 84 by 2 which gives us 48

REMEMBER: The formulae for working out the area of a trapezium is 1/2x(a+b)xh

5 0
2 years ago
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