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3 years ago

13

Marisol buys 3 notebooks that each cost the same amount and 1 calculator that costs $9. The total cost is $21. How much does eac

h notebook cost?

2 answers:

adoni [48]3 years ago

4 0

Answer: 4 dollars for each notebook

Step-by-step explanation:

21-9= 12

12/3=4

each notebooks costs 4 dollars

kondaur [170]3 years ago

4 0

Answer:

$4

Step-by-step explanation:

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⅝y -6 < 4<br> plz show work

NARA [144]

Answer:

$y$

Step-by-step explanation:

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3 years ago

Felix found the sum of two prime numbers and one composite number to be 45. The difference between the greatest and least number

erica [24]

I think it could be 13,17, and 15.
If I am wrong then I am sorry

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3 years ago

Find the value of x and then the measure of each angle. You should have 3 answers.

Softa [21]

Answer:

x = 7

3x + 11 = 32

8x + 2 = 58

Step-by-step explanation:

3x + 11 + 8x + 2 = 90

11x + 13 = 90

11x = 77

x = 7

3x + 11 = 3(7) + 11 = 32

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3 years ago

Ben the camel drinks tea (so classy!). He drinks 405 liters of tea every 2 days. How many liters of tea does Ben drink every 6 d

Hoochie [10]

6/2=3
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2 years ago

What is the answer of a ?

Scorpion4ik [409]

Answer:

<h2>2.2</h2>

Step-by-step explanation:

Use the cosine law (look at the picture).

We have:

$a=a\\b=4\\c=3\\\gamma=32^o$

$a^2=4^2+3^2-2(4)(3)\cos32^o$

$\cos32^o\approx0.848$ → look at the second picture

$a^2=16+9-24(0.848)\\\\a^2=25-20.352\\\\a^2=4.648\to a=\sqrt{4.648}\\\\a\approx2.2$

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4 years ago