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zimovet [89]
4 years ago
15

2:

Mathematics
2 answers:
Dafna1 [17]4 years ago
7 0

Answer:

Step-by-step explanation:

Price of 4 notebooks = 4,50×(4÷5) = 3,6$

Price of 5 pencils = (3÷12)×5 = 1,25$

Total = 3,6 + 1,25 = 4,85$

:)

ehidna [41]4 years ago
6 0
Divide 4.50 by 5 and gives you 0.9 and multiply times 4 = $3.6 - notebooks the same process for pencils 3.00 divide by 12= 0.25*5=1.25 and the total is $4.85
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Need help! Law of cosines...find b round to the nearest tenth please
dusya [7]
ANSWER

B = 27.8 \degree

EXPLANATION

The law of cosine is given by the formula:

{b}^{2} = {a}^{2} + {c}^{2} - 2bc \cos(B)

From the diagram,

a=17, b=8, c=16

We substitute the given values into the formula to obtain:

{8}^{2} = {17}^{2} + {16}^{2} - 2(17)(16)\cos(B)

64 = 289+ 256- 544\cos(B)


64 = 545- 544\cos(B)


64 - 545 = - 544\cos(B)

- 481 = - 544\cos(B)

\frac{ - 481}{ - 544} = \cos(B)

cos(B) = 0.88419

B = \cos ^{ - 1} (0.88419)

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3 0
4 years ago
Read 2 more answers
If you roll a fair six-sided die and a fair four-sided die, what is the probability that the dice add to 6 or higher
Lena [83]
Okay so you have to figure out all the possible ways to get six or higher. between a 6 sided dice and a 4 sided dice. We do 6*24 to find all the possibilities.

The probability of getting a 6 or higher is 14/24



4 0
3 years ago
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If 5 slices of pizza cost $5:50 how much does 
kupik [55]

The first thing we must do for this case is to define variables.

We have then:

x: number of slices

y: total cost

We write the linear function that relates the variables.

We have then:

y = (\frac{5.50}{5}) * x

Then, we evaluate the number of slices to find the total cost.

-two slices cost:

We substitute x = 2 in the given equation:

y = (\frac{5.50}{5}) * 2\\y = 2.2

Answer:

two slices = 2.2 $

-ten slices cost:

We substitute x = 10 in the given equation:

y = (\frac{5.50}{5}) * 10\\y = 11

Answer:

ten slices = 11 $

-half a slice cost:

We substitute x = 1/2 in the given equation:

y = (\frac{5.50}{5}) * \frac{1}{2}\\y = 0.55

Answer:

half a slice = 0.55 $

6 0
3 years ago
Monica bought a car for $x 3 years ago. Due to an inflation rate of 6% p.a. this car is now worth Mexican peso 50,000. Calculate
oksano4ka [1.4K]

Answer:

its 60198.6

Step-by-step explanation:

use the formula present price=orginal price(1-rate/100)^years

4 0
3 years ago
Find the distance between point a and point b
gulaghasi [49]

Answer:

5 units

Since they both have the same y value, just subtract the a value's x from the b's x value

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3 years ago
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