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Liono4ka [1.6K]
3 years ago
11

Andy has $310 in his account. Each week, w, he withdraws $30 for his expenses. Which expression could be used if he wanted to fi

nd out how much money he had left after 8 weeks?
30 points?
Mathematics
2 answers:
Furkat [3]3 years ago
6 0

Answer:

310 - 3w

310 - 3(80) = $70

Step-by-step explanation:

310 - 30w

w = 8

310 - 30(8)

310 - 240

= 70

Marysya12 [62]3 years ago
6 0

Answer:

$70.

Step-by-step explanation:

$30x8(w)=$240

He will have taken out (t) $240 of his starting amount (s) after 8 weeks (w):

$310(s)-$240(t)=$70.

He will have $70 left after 8 weeks.

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uranmaximum [27]

Answer:

Step-by-step explanation:

Arc length of circle with the radius CA = ((2π CA)/360) x 75

(2π 14/360)x75 = (87.96/360)75 = 18.32 yards

Arc length of circle with the radius CN = ((2π CN)/360) x 75

(2π 28/360)x75 = (175.92/360)75 = 36.65 yards

Arc length of circle with the radius CT = ((2π CT)/360) x 75

(2π 42/360)x75 = (263.89/360)75 = 54.98 yards

Arc length of circle with the radius CO = ((2π CO)/360) x 75

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4 0
3 years ago
Petra claims that he can use the Associative Property of Multiplication to rewrite (9.5 x 9) + 1 as 9.5 X 10. Is Petra correct?
My name is Ann [436]
No, he is wrong.

(9.5 x 9) + 1 = 86.5
9.5 x 10 = 95

7 0
3 years ago
Read 2 more answers
Choose which ones are right triangles
Colt1911 [192]

Answer: all of them. They all have a degree of 90

Step-by-step explanation:

8 0
2 years ago
When graphed, the x-intercept of a linear function is (-4,0), and the y-intercept is (0,12).
Alexeev081 [22]

Answer:

B. y - 6 = 3(x + 2)

Step-by-step explanation:

Eq. a:  y = 4x + 12 (not the answer because if y = 0, x should be -4, but isn't)

b:  y = 3x + 12 (correct one because process of elimination)

c:  y = 2x + 1 (not the answer because d is not 12, but 1)

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4 0
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Find a marginal Profit function if cost and revenue are given by c(x)=240+0.3x and r(x)=8x-0.06x^2
RoseWind [281]

Answer:

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Step-by-step explanation:

Profit is the difference between revenue and cost:

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Marginal profit is the derivative of this function:

  p'(x) = -0.12x +7.7

8 0
3 years ago
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