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3 years ago

If 4 sandwich rolls cost $0.64,how much will 21 rolls cost ?

Mathematics

2 answers:

4vir4ik [10]3 years ago

7 0

It should be $21.16 hope this helps!

algol133 years ago

3 0

Answer:

0.64/4 is 0.16 and times 21, so its 3.36 $

Step-by-step explanation:

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Let f(x)=1/2x2+4. The function g(x) is a vertical stretch of f(x) by a factor of 4. What is the equation of g(x)?

andrey2020 [161]

The equation of g(x) is $g(x)=2 x^{2}+16$

Explanation:

Given that the function f(x) is $f(x)=\frac{1}{2} x^{2}+4$

Also, given that the function g(x) is a vertical stretch of f(x) by a factor of 4.

We need to determine the equation of g(x)

<u>Equation of g(x):</u>

The vertical stretch of the function can be determined by multiplying the factor 4 with the function f(x).

Thus, we have,

$g(x)=4 f(x)$

Substituting the values,we have,

$g(x)=4\left(\frac{1}{2} x^{2}+4\right)$

Simplifying the values, we get,

$g(x)=2 x^{2}+16$

Hence, the equation of g(x) is $g(x)=2 x^{2}+16$

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3 years ago

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Veronika [31]

Answer:

I think its c

Step-by-step explanation:

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3 years ago

What is the best approximation for the circumference of a circle with a radius of 125 m? Use 3.14 to approximate pi. 392.5 m 785

Marina CMI [18]

Answer:

Step-by-step explanation:

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3 years ago

Last month, Maria purchased a new cell phone for $500. The store manager told her that her new cell phone would depreciate by 70

trapecia [35]

Answer:

V = 500(0.70)2

Step-by-step explanation:

500 has to be in the equation because it is the cost of the phone

0.70 is the value it depreciates

2 is the number of years that value depreciates

4 0

4 years ago

I have just one question, could someone please answer it?? (see linked file)

Annette [7]

The solution is x=1 and y=-2

Further explanation:

Given equations are:

$\frac{7}{2}x-\frac{1}{2}y=\frac{9}{2}\\3x-y=5$

Multiplying equation no. 1 with 2 will give us:

$7x-y=9$ Eqn 3

From equation no 2:

$3x-y=5\\-y=5-3x\\y=3x-5$

Putting the value of y in eqn 3

$7x-(3x-5)=9\\7x-3x+5=9\\4x=9-5\\4x=4\\\frac{4x}{4}=\frac{4}{4}\\x=1\\Putting\ x=1\ in\ equation\ 2\\3(1)-y=5\\3-y=5\\-y=5-3\\-y=2\\y=-2\\$

The solution is x=1 and y=-2

Keywords: Linear equations, Solution set

Learn more about linear equations at:

#LearnwithBrainly

8 0

3 years ago