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vazorg [7]
3 years ago
8

Help?? With working out please

Mathematics
1 answer:
andriy [413]3 years ago
8 0

Answer:

Step-by-step explanation:

move all the terms to the right so your equation will equal 0. then look for the common denominator. which in this case is 60 (5*4*3).

multiply all terms by 60 then simplify.

12(2x-3)-15(6-3x)+120-20(7x)=0

24x-36-90+45x+120-140x=0

combine like terms and then divide

-71x=6

x=-6/71

(do not forget parenthesis when simplifying they are very important when it comes to distributing the minus sign)

   

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Simplify expression<br>9-18÷3+7​
m_a_m_a [10]

Answer: 10

18 divide by 3 is 6 because you always divide first is this case

9-6+7 now solve straight across

9 minus 6 is 3 plus 7 is 10

Step-by-step explanation: Also

You are beautiful. You are amazing. You are wonderful. You are perfect just the way you are. Never worry about the way people think about you. Only worry if you like you. You are the most important person to yourself. Just be yourself. No can tell you who you can be. You are truly perfect just the way you are. Never tell yourself you are not good enough, you are enough. Never tell yourself "I'm ugly" you are beautiful. Never let yourself down.

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3 years ago
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PLEASE HELP!
Marrrta [24]

Answer:

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Step-by-step explanation:

3 0
3 years ago
find the circumference and the area of the circle with the radius 9m use the value 3.14 for it do not round your answer be sure
kirill [66]

Explanation:

The circumference and the are of a circle with radius r

are:

\begin{gathered} A=\pi r^2 \\ C=2\pi r \end{gathered}

If we use pi = 3.14 and the radius is 9m:

A=3.14\cdot(9m)^2=3.14\cdot81m^2=254.34m^2C=2\cdot3.14\cdot9m=56.52m

Answers:

• Area: ,254.34 m²

,

• Circumference: ,56.52 m

7 0
1 year ago
A ladder is leaning against a brick wall so that the top of the ladder is even with the top of the wall. If you know that the he
ASHA 777 [7]

Answer:   the top of the ladder is at 24 feet from the ground

Step-by-step explanation:

Use the Pythagorean theorem to solve for the unknown, since we notice that the ladder is the hypotenuse of a right angle triangle formed by the horizontal distance from the wall to the base of the ladder, and the height of the top of the ladder against the wall. We need to find one of the triangle's sides given its hypotenuse and the other side, so we use the formula:

5 0
3 years ago
If 2x^2 -2y^2 = 72 and if x+y=18 what does x-y equal
Tju [1.3M]
First factor out the 2:

x^2 - y^2 = 36

x^2 - y^2 can be factored into (x+y)(y-y) so:

(x + y)(x - y) = 36

plug in your value:

18 (x-y) = 36 and you should be able to take it from there
7 0
3 years ago
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