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3 years ago

The first term of a geometric sequence is 3 and the comaon ratio is 5 find the 8th term.

Mathematics

2 answers:

ElenaW [278]3 years ago

4 0

Answer:

Step-by-step explanation:

maxonik [38]3 years ago

3 0

Answer:

234375

Step-by-step explanation:

3, 15, 75, 375, 1875, 9375, 46875, 234375

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At the movie theatre, child admission is $6.30 and adult admission is $9.90 . On Monday, 159 tickets were sold for a total sales

frez [133]

C = child tickets
a = adult tickets

Solve this with the substitution method.
Make two equations:

6.30c + 9.90a = 1,246.50
c + a = 159

Solve for c.
Subtract 9.90a from both sides.

6.30c = 1,246.50 - 9.90a
Divide both sides by 6.30.

c = 197.86 - 1.57a (rounded to hundredths)
Plug c into second equation.

197.86 - 1.57a + a = 159
Combine like terms.

197.86 - 0.57a = 159
Subtract 197.86 from both sides.

-0.57a = -38.86
Divide both sides by -0.57.

a = 68.18
round up to ones: 68

 $\boxed {68~adult~tickets}$ were sold.

8 0

3 years ago

4x^2+5y^2=41 3x^2-4y^2=23

dybincka [34]

Answer:

i dont know the answer sry

Step-by-step explanation:

srryyy

5 0

3 years ago

What is the value of x? Enter your answer in the box. x =

polet [3.4K]

The two angles are the same value. To find, think of the equation 3x+50=6x-10. Put the 6x to the other side of the equation. You shall get -3x+50=-10. Move the 50 to the other side, and you'll end up with -3x=-60. Divide each number by -3 to find x now. Your final answer will be x=20.

Answer: x=20

8 0

3 years ago

- Do two points always, sometimes, or never determine a line? Explain

White raven [17]

Answer:

Always

Step-by-step explanation:

if two points lie in a plane, then the entire line containing those points lies in that plane

8 0

3 years ago

The following formula gives the circumference C of a circle with radius r.

Veronika [31]

Answer:

The answer is 125.6

Step-by-step explanation:

C= 2x3.14x20

C=6.28x 20

C= 125.6

8 0

3 years ago