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Damm [24]
3 years ago
11

Connor bought a pack of 4 notebooks for $8.20. What was the unit price? please explain

Mathematics
1 answer:
Mamont248 [21]3 years ago
3 0

Answer:

$2.05

Step-by-step explanation:

$8/4 notebooks= $2

.20/4=.05

________________

$2.05

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zodwa needs R450550.00 to buy a house, the bank approved her loan for the full amount at an interest rate of 25% per year, compo
adell [148]

Answer:

I'll setup the problem and leave the computation to you

Step-by-step explanation:

The equation to calculate fixed payments

P =  \frac{r(PV)}{1- {(1 + r)}^{ - n} }

P= payments

r = interest rate for the period (which is a quarter )

PV = present value (or the amount borrowed)

n = number of periods

r = .25/4 (4 months = quarter of a year)

n = 4*10

PV = R450550.00

if you have questions, put them in the comment

6 0
3 years ago
Solve the system of equations by the addition method. If the system does not have a single ordered pair as a​ solution, state wh
Damm [24]

Answer:

dependent

Step-by-step explanation:

The given system is :

15x-18=3y

5x=y+6

Rewrite the equations in standard form to get:

15x-3y=18

5x-y=6

Multiply the bottom equation by 3.

15x-3y=18

15x-3y=18

Sub both equations:

0-0=0

0=0

We got an identity

The system is dependent  because there are infinitely many solutions

6 0
4 years ago
I WILL GIVE BRAINLIEST! PLEASE HELP ME!
PilotLPTM [1.2K]

needless to say that the conversion from miles to kilometers uses a constant value, and therefore, they're directly proportional.

now, I could write the direct proportional relation blah blah but there's no need, we can simply squeeze it out of the table by simply checking how many kilometers there are in 1 mile.

well, we know that 11.0 miles give us 17.699 km, ok hmmm if we divide 17.699 ÷ 11 = 1.609.

if we do the same on table for 26 and 41.834, so 41.834 ÷ 26 = 1.609, and the next pair 54.706 ÷ 34 = 1.609, the value of 1.609 is consistent or constant, or namely that there are 1.609 kilometers in 1 mile.

6 0
2 years ago
A sample of 1700 computer chips revealed that 51% of the chips do not fail in the first 1000 hours of their use. The company's p
hichkok12 [17]

Answer:

The answer is -1.2

Step-by-step explanation:

Recalling the standard deviation formula,

we have : σ = sqrt[ P * ( 1 - P ) / n ]

Where sqrt = square root

n = Number of derivative

Therefore,:

if, H0: p is not 48%  vs H1: p1 = 48%

 

 

standard deviation is:

σ = sqrt[ P * ( 1 - P ) / n ] = sqrt[ .48*.49/900 ] = .01666333+ z -score is (p-P)/σ

= (.51-.53)/.01666333

The answer therefore =  -1.2

 ICONCLUSION:

It can therefore be concluded that there is statistical evidence that the proportions are different. H0 accepted in the hypothesis.

3 0
4 years ago
Read 2 more answers
I really need to get this done quick.
Lorico [155]
H + 14 = 82
Subtract 14 from both sides.
h = 68 inches (height of the person)
8 0
3 years ago
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