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Anastaziya [24]
2 years ago
15

Calculation: One score is 20. Two score is 40. Three score and 5 is 65.

Mathematics
1 answer:
wariber [46]2 years ago
3 0

Answer:

answer for the question is 87

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Select all input values for which g(x) = 8.
kipiarov [429]

Answer: A & C

Step-by-step explanation:

g(x) = 8 means where is y = 8?

when we go to -4 on the x-axis, the y value there is 8. so this works!

when we go to 6 on the x-axis, the y value is 6. we were looking for 8. so this does not work.

when we go to 9 on the x-axis, the y value is 8. so this works!

A & C

8 0
2 years ago
Tabitha decided to start saving pennies for a stretch of two months and initially started with 2 pennies. A table showing the nu
svetoff [14.1K]

Answer:

  • after week 7: 4374 pennies
  • 486 pennies: after week 5

Step-by-step explanation:

The sequence values have a first term of 6 and a common ratio of 3, so can be described by the formula ...

  an = 6·3^(n-1)

This can be rearranged to ...

  an = 2·3^n

__

When n=7, the value is ...

  a7 = 2·3^7 = 4374 . . . . pennies saved after 7 weeks

__

To find when there are 486 pennies saved, we can solve the equation ...

  486 = 2·3^n

  243 = 3^n

  log(243) = n·log(3) . . . . . . . take the logarithm

  log(243)/log(3) = n = 5 . . . . divide by the coefficient of n

Tabitha will have saved 486 pennies after 5 weeks.

7 0
3 years ago
Marta wants to purchase charms for her necklace. Each charm cost $1.59. She wants to spend no more than $20 for the charms. Whic
Svetllana [295]

Which inequality represents this situation ?

1.59×n < 20

How many charms can Marta purchase ?

20 : 1.59 = 12 (+$0.92)

5 0
3 years ago
A 154-lb person burns 420 calories per hour riding an exercise bicycle at a rate of 15 mi/hr. Write a function rule to represent
nika2105 [10]
<span>C = total calories burned
r = rate of burning calories = 420 calories burned/hour
t = time in hours
C = 420 * t
</span>
4 0
2 years ago
Question 9 (0.5 points)
exis [7]
The correct answer is C. 2,400

Explanation- I’m a freshman trust me I know!
6 0
3 years ago
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