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klio [65]
3 years ago
7

Ten granola bars and 12 bottles of water cost $23. Five granola bars and four bottles of water cost $10. How much do one granola

bar and one bottle of water cost?

Mathematics
2 answers:
katen-ka-za [31]3 years ago
8 0
One granola bar and one bottle of water will cost 3 dollars.

This is because both a granola bar and bottle of water cost $1.50
Reptile [31]3 years ago
6 0

Answer:

The cost of one granola bar is \$1.4

The cost of one bottle of water is \$0.75

Step-by-step explanation:

Let

x------> the cost of one granola bar

y-----> the cost of one bottle of water

we know that

10x+12y=23 -----> equation A

5x+4y=10 -----> equation B  

using a graphing tool

Solve the system of equations

Remember that

The solution of the system of equations is equal to the intersection point both graphs

The intersection point is (1.4,0.75)

see the attached figure

therefore

The cost of one granola bar is \$1.4

The cost of one bottle of water is \$0.75

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The figure shows ∠AOC drawn with a protractor. What type of angle is it and what is its measure?
Debora [2.8K]

Answer:

the answer is acute 35.


Step-by-step explanation:


3 0
3 years ago
Read 2 more answers
Is the number rational or irrational? Explain. <br><br> A. -38 <br><br> B. 400 <br><br> C. 2 3 27
Alik [6]
A.  No, because -38 isn't a fraction.

2, No because 400 is a real number.

3. Yes because fractions, decimals, and percents are rational numbers.


hope that helped
6 0
3 years ago
The bottom shape is a square prism with base edges of 3 cm and a height of 10 cm. What is the volume of the composite figure if
7nadin3 [17]
Answer: 96 cm^3

To answer this, start by finding the volume of the square prism. The formula is L x W x H, therefore the volume is 3 x 3 x 10 = 90.

Then, find the volume of the pyramid on the top. Use the same formula but divide it by 3 because it is a pyramid. 3 x 3 x 2 / 3 = 6

Add 90 and 6 to get 96.
6 0
3 years ago
Calculate two iterations of Newton's Method to approximate a zero of the function using the given initial guess. (Round your ans
VikaD [51]

Answer:

The two iterations of f(x) = 1.5598

Step-by-step explanation:

If we apply  Newton's iterations method, we get a new guess of a zero of a function, f(x), xₙ₊₁, using a previous guess of, xₙ.

xₙ₊₁ = xₙ - f(xₙ) / f'(xₙ)

Given;

f(xₙ) = cos x, then  f'(xₙ) = - sin x

cos x / - sin x = -cot x

substitute in "-cot x" into the equation

xₙ₊₁ = xₙ - (- cot x)

xₙ₊₁ = xₙ + cot x

x₁ = 0.7

first iteration

x₂ = 0.7 + cot (0.7)

x₂ =  0.7 + 1.18724

x₂ = 1.88724

 

second iteration

x₃ = 1.88724 + cot (1.88724)

x₃ = 1.88724 - 0.32744

x₃ = 1.5598

To four decimal places = 1.5598

4 0
3 years ago
The sum of two numbers is 21.
mafiozo [28]

Answer:

Pretend that x and y represents the 2 numbers that we need to find.

According to the information, we know that:

x + y = 21

6x = y

Replace y in the first equation with 6x (because they are equal to each other according to the second equation):

x + y = 21

x + 6x = 21

7x = 21

x = 21/7 = 3

Now have two ways to find y, both will give us the same result:

3 + y = 21 ⇔ y = 21 - 3 = 18

6 · 3 = y ⇔ y = 18

So the numbers that we need to find are 3 and 18.

7 0
3 years ago
Read 2 more answers
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