1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
yKpoI14uk [10]
4 years ago
6

8+4c+8.5-c what is the answer to this

Mathematics
1 answer:
jekas [21]4 years ago
6 0
Do you mean 8+4c+8.5-c= 0?

If so, you just add the like terms ie: (8+8.5)+(4c-c)= 0
16.5+3c= 0
3c= -16.5
c= -16.5/3
c= -5.5
You might be interested in
Norachai traveled to the recycling plant and back. The trip back took 5 hours. He averaged 9mph faster on the trip there than on
irina1246 [14]

Answer:

His\ average\ speed\ to\ trip\ there\ =45\ mph\\\\His\ average\ speed\ in\ return\ trip=45-9=36\ mph\\\\His\ average\ speed\ during\ whole\ trip=40\ mph

Step-by-step explanation:

Let\ distance\ from\ one\ side=d

Trip:

Let\ speed\ when\ he\ was\ going=x\ mph\\\\Time\ taken=4\ hours\\\\distance=d\\\\distance=speed\times time\\\\d=x\times 4\\\\d=4x\ ...................................eq(1)

Return Trip:

Speed=x-9\ \ \ \ \ (as\ it\ is\ 9\ mph\ slower)\\\\Time\ taken=5\ hours\\\\Distance=d\\\\Distance=speed\times time\\\\Distance=5\times (x-9)\\\\d=5x-45\ ........................................eq(2)

from\ eq(1)\ and\ eq(2)\\\\5x-45=4x\\\\5x-4x=45\\\\x=45\ mph\\\\from\ eq(1)\\\\d=4\times 45=180\ miles

Average\ speed\ during\ whole\ trip=\frac{total\ distance}{total\ time}=\frac{2\times 180}{5+4}=\frac{360}{9}=40\ mph

His\ average\ speed\ to\ trip\ there\ =45\ mph\\\\His\ average\ speed\ in\ return\ trip=45-9=36\ mph\\\\His\ average\ speed\ during\ whole\ trip=40\ mph

8 0
3 years ago
Identify all of the following that are prime number. 2,97,11,27,31,42,59,63,72, and 81
Mademuasel [1]
2, 11, 31, 59 and 97 are all prime numbers.
8 0
4 years ago
Read 2 more answers
Verify that the function satisfies the three hypotheses of Rolle’s Theorem on the given interval. Then find all numbers c that s
Veseljchak [2.6K]

Answer:

Step-by-step explanation:

the answer is 12 or 9

4 0
4 years ago
Explain why leg leg(LL) theorem is the same as the side angle side postulate
Sveta_85 [38]
Recall that the LL theorem, as well as the LA theorem, both apply only to right-triangles.

now, in the LL, if a right-triangle has congruent Legs with another, both right-triangles are congruent.

in the LA, if a right-triangle has one Leg and one Angle congruent with another right-triangle, then they're congruent.

well, in the LA, once you have a Leg and then an Angle touching that Leg, the angle is also touching another Leg, since it is an angle and is cornered by two Legs.  The second Leg touched or stemming from that Angle, can only be of one possible length, because the first Leg and the Angle will constrain it to be of certain length.

and that is true for both triangles, and since both triangles will have a second Leg constrained to be a certain length, because of LA, then a second Leg will also be congruent on both right-triangles, so the theorem kinda becomes LAL theorem, Leg Angle Leg, but we can just do away with the Angle part and call it LL.
3 0
3 years ago
The value of a yacht was £230 000.
Alex Ar [27]
£156,210 would be the answer
7 0
3 years ago
Read 2 more answers
Other questions:
  • What would be the answer?
    9·1 answer
  • Find the surface area of the prism. Can you show the work please?
    13·1 answer
  • Which graph represents an even function?
    10·2 answers
  • if 15 is the fifth number in a series of five consecutive odd numbers, what is the third number in the series ?
    5·1 answer
  • 45 EXTRA POINTS ***************************************************************************************** A researcher posts a r
    8·1 answer
  • Can someone help me
    7·1 answer
  • Which statement is true?
    10·2 answers
  • Ginny is saving for a pair of boots. They cost about $44, including tax. She already has saved $12. How would I write am equatio
    5·1 answer
  • Why can 3+4 be written as 3 + 3 + 1
    14·2 answers
  • Evaluate 2/ 3 ÷ 4 /5 Give your answer as a fraction in its simplest form.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!