Twice the difference of a number 8 equals 5
2 answers:
Answer:
x=10.5
Step-by-step explanation:
x will be a number
2(x-8)=5 --> I'm assuming your question is " twice the difference of a number and 8 equals 5.
Solving
2(x-8)=5
2x-16=5 --> distrubute the 2--> 2*x = 2x and 2*-8 = 16
2x=16+5--> add 16 to other side of x
2x=21--> add like terms
2x / 2 =21 / 2--> single out x
x=10.5 --> 21/2 --> just divide
Answer:
2(n-8) = 5
Step-by-step explanation:
I'm assuming that its supposed to say "a number <em>and</em> 8"
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Answer:
≈ 23.4
Step-by-step explanation:
A = bh
270 = 15b
b = 18
Now you know the two legs, use the Pythagorean Theorem to find the value of the hypotenuse: a² + b² = c²
15² + 18² = c²
225 + 324 = c²
c² = 549
c = √549
5/10+2/9=13/18
=1/2+2/9
=9/18+4/18
=9+4/18
answer: 13/18
2x + 10...the common number between these 2 terms is 2...so factor the 2 out
2(x + 5) <==
A regular dodecahedron is a regular polyhedron composed of 12 equally sized regular pentagons.
