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Monica [59]
3 years ago
9

if i costs $5 per hour for a surfboard plus an initial payment of $20. for how many hours can i rent a surfboard if i have $90

Mathematics
2 answers:
dsp733 years ago
6 0
Okay so take away $20 from your $90 you get $70. Divide $70 by $5 per hour and you get to rent a surfboard for 14 hours.
iren [92.7K]3 years ago
3 0
An equation to solve that problem can be
5x+20=90. X represents the hour/s.

You'd first use the subtraction property of equality and subtract 20 from both sides to get 5x=70. Then, you use the division property of equality and divide both sides by 5 to isolate the variable. You'd then get x=14

You'd be able to rent the surfboard for 14 hours
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Graph the six terms of a finite series where a1 = −3 and r = 1.5.
s344n2d4d5 [400]
We are given the first term and the common ratio, this means they belong to a geometric series.

For the given series:

a_{1}=-3 \\ 
r=1.5

Each term of the geometric series is obtained by multiplying the previous term by common ratio.

So the next terms will be:

-4.5, -6.75, -10.125, -15.1875, -22.78125

The general formula for the G.P would be:

a_{n}=-3(1.5)^{n-1}

On plotting the series, the result will be like this:

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4 years ago
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A sink contains 16 liters of water before the drain is opened. It drains at a rate of 2 liters per minute.
AysviL [449]

Answer:

8

Step-by-step explanation:

16 liters divided by 2 liters a minute you get 8

also i would do a graph but there is no way of putting it up with my answer i hope this helps a little if it doesnt im sorry

6 0
3 years ago
Alan wants to bake blueberry muffins and bran muffins for the school bake sale. For a tray of blueberry muffins, Alan uses 1/3 c
True [87]
So we know there are 12 eggs and they will be distributed like this:

12=x2+y1
and 4 cups of flour:
4=1/3x+1/2y

let's see if we can find a solution in which all the materials are used:
12=x2+y1
4=1/3x+1/2y//*6

12=2x+y
24=2x+3y//*6

substract from each other:
12=2y
y=2
12=2x+y
12=2x+2
10=2x
x=5

So if nothing is wasted, he can make 5 blueberry muffins (making 12*5=60) and 2 bran muffins (2*9=18), together 78 dollars,

would it be better if instead of the bran muffins he did blueberry muffins (which are more expensive?)
for the branberry muffins he will used the double amount needed for 1: so 1 cup of oil and 2 eggs. From this he can only make 1 tray of blueberry muffins (and some oil will be left over), which will cost 12 dollars, which is less than 18

so he better make 6 blueberry and 2 bran trays






6 0
3 years ago
Alonzo loaned jeremy $325.18 for 1 year at a simple interest rate of 12 5/8%. how much interest will jeremy have to pay?
gayaneshka [121]

Jeremy will pay $41.05 interest.

We know that, Interest = PRT/100

where,

P = principal

R = rate

T = time

For given question, principal (P) = $325.18

interest rate R = 12 5/8%

                        = 12.625%

And period T = 1 year

We need to find the interest.

⇒ Interest = PRT/100

⇒ Interest = (325.18 × 12.625 × 1) / 100

⇒ Interest = 4105.3975 / 100

⇒ Interest = $41.05

Therefore, Jeremy will pay $41.05 interest.

Learn more about the interest here:

brainly.com/question/15052754

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7 0
1 year ago
The temperature at midnight was −11°C. By midday, the temperature was 5°C.
m_a_m_a [10]

Answer:

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Step-by-step explanation:

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3 years ago
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