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mihalych1998 [28]
3 years ago
13

Althea's Plans for Saving $384 Plan Amount to Save Number of Each Week Weeks Needed $20 $30 $50 20 Using Plan B, how many weeks

will it take Althea to reach her savings goal? Write an equation to model your work

Mathematics
1 answer:
SVEN [57.7K]3 years ago
7 0

Answer:

13 weeks

Step-by-step explanation:

In the picture attached, data of the problem is shown in a table.

Althea wants to save $384, in plan B she saves $30 each week. The amount of weeks needed is obtained dividing the total amount to save by the amount saved per week, that is:

equation: $384÷$30  = 12.8 weeks

Here, weeks are considered integers, so you have to round this value to the next integer, that is, 13 weeks. To better understand this, suppose you take 12 weeks saving $30 per week, after 12 weeks you will save: $30*12 = $360, which is not enough; with 13 weeks you will save: $30*13 = $390.

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F(x) = 3x3 – 2x2 + x - 4 at x = -3
Yuri [45]

Steps to solve:

f(x) = 3x³ – 2x² + x; x = -3

~Substitute

f(-3) = 3(-3)³ - 2(-3)² + (-3)

~Solve the exponents

f(-3) = 3(-27) - 2(9) + (-3)

~Multiply

f(-3) = -81 - 18 - 3

~Subtract

f(-3) = -102

Best of Luck!

5 0
4 years ago
If n is the term, what is the first integer value of n where the sequence 2n² is greater than 50?
Nezavi [6.7K]

Answer:

The 6th term is first integer value of n greater then 50 in the 2n^2 sequence.

Step-by-step explanation:

2n^2 sequence:

2,8,18,32,50,72

3 0
3 years ago
joe deposits $1500 in an account that pays 3% annual interest compounded conitiniously how much will joe have in his account aft
konstantin123 [22]

Answer:A = 1500e^(0.03 * 5) = 1500e^(0.15)

use definition of logarithm

0.15 = ln(A / 1500)

0.15 = ln(A) - ln(1500)

ln(A) = 0.15 + ln(1500) = 0.15 + 7.313220387 = 7.463220387

Step-by-step explanation:

3 0
3 years ago
-5(4w-3)-2=-13w-10-4w+2
Vadim26 [7]
-20w+15-2=-13w-10-4w+2
-20w+13=-17w-8

I gave you the basis of the question. Hope it helped. Hopefully you can solve the rest!
6 0
3 years ago
Roberto has run the first 18 miles of a race, which means he is 72% finished. How long is the race
Mamont248 [21]

Answer:

25 miles

Step-by-step explanation:

18 ÷ 72% =

18 ÷ (72 ÷ 100) =

(100 × 18) ÷ 72 =

1,800 ÷ 72 =

25

6 0
3 years ago
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