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topjm [15]
3 years ago
5

What is the answer to this question?

Mathematics
1 answer:
Nadya [2.5K]3 years ago
3 0
You started with$8
$8.00
- 4.38
- 3.37
---------
.25
+$10.00
-----------
$10.25
-14.80
----------
-$4.55. negative balance. didn't have enough in account to purchase the book on kindle.
-
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2 plus ( 9 to the power 2 -4
Sever21 [200]

Answer:

79

Step-by-step explanation:

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3 years ago
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Find the y-coordinate of the y-intercept of the polynomial function defined
Bas_tet [7]
The y intercept is where the function passes through the y axis, so the “x” value needs to equal 0. We sub 0 in for “x” and solve for “y”.

f(0) = 9(0)^2 - 7 - 8(0)

f(0) = -7

Therefore the “y” coordinate would be -7

The ordered pair would be

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6 0
3 years ago
1. The cost of a fish dinner for a restaurant is $7.95. If they sell it for $11.95, what is the percent markup?
kvv77 [185]

Answer:

the answer will be

50.3144 %

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3 years ago
It takes a smaller hose 4 times as long to fill a certain swimming pool as it does a larger hose. It take both hoses working tog
faust18 [17]

Answer:

Larger hose will take 18 minutes and 45 seconds

Step-by-step explanation:

ONE smaller hose fills the pool in 5*15 = 75 minutes.One large hose can do this job in  75/4 minutes = 18 3/4 minutes = 18 minutes and 45 seconds

4 0
3 years ago
Suppose you invest $750.00 in a fund earning 6% simple discount. A certain time later you withdraw the investment (principal and
barxatty [35]

Answer:

4.08 + 2 = 6.08 years

Step-by-step explanation:

we know that

Simple Interest(S.I.) = (P × R × T) ÷ 100

where, P = Principal = 750

R = Rate = 6%

T = unknown

⇒ S.I. = (750 × 6 × t)÷ 100

⇒ S.I. = 45t

Also, Amount = S.I + Principal

⇒ Amount = 750 + 45t

Now Formula for Compound Interest is:

A = P(1+\frac{r}{100})^{t}

where A = Amount

=1000

P = Principle

r = rate

t = total number of year

Here, P = 750 + 45t, r = 3.5% , and t = 2.

Putting all these values in above formula:

1000 = (750 + 45t)(1+\frac{3.5}{100})^{2}

⇒ 1000 = (750 + 45t)(1.071)

⇒ t = 4.08

Hence, total time required will be 2 + 4.08 = 6.08 years.

7 0
4 years ago
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