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Vlad1618 [11]
3 years ago
10

Marie has $830 in her bank account and withdraws $60 each month. Denise has $970 in her bank account and withdraws $80 each mont

h.
In how many months will Marie and Denise have equal amounts of money in their accounts?
A. 4
B. 5
C. 7
D. 9
Mathematics
1 answer:
Phantasy [73]3 years ago
7 0
830-60x=970-80x
-60x=140-80x
20x=140
2x=14
x=7

C, 7 months
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Answer:

The correct answer is not shown in your picture. You must get a = 60.

Step-by-step explanation:

(1/2)a + (2/3)b = 50

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The correct answer is not shown in your picture. You must get a = 60.

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fomenos

Answer:

Option D. 2x⁷ - 12x⁶ + 10x⁵

Step-by-step explanation:

From the question given:

Length (L) = 2x²

Width (w) = x³

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Volume (V) =?

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V = 2x² × x³ × x² - 6x + 5

V = (2x²) (x³) (x² - 6x + 5)

V = (2x⁵) (x² - 6x + 5)

Clear bracket

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The equation of the polar curve r = 4\cos(3\theta) is an even cosine function.

<h3>Polar curves</h3>

In geometry, polar curves are curves that are represented by the polar coordinates such that they are drawn around a fixed point

The equation of the polar curve is given as:

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To graph the polar curve, we make use of the following representations:

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Using the above representation, we can graph the polar curve

See attachment for the graph that represents r = 4\cos(3\theta)

Read more about polar curves at:

brainly.com/question/4618020

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