Ruby had 30 dollars to spend on 3 gifts. She spent 9 7 10 dollars on gift A and 5 2 5 dollars on gift B. How much money did she have left for gift C?

Answer:

Step-by-step explanation:

Q1: 1) 50/315 x 100

       15.9

    2) 65/165 x 100

      36.4

     3) 40/150 x 100

       26.7

      4) 130/315 x 100

         41.3

The percent of the purchase price would be 20% of the sale price.

The unitary method is a method for solving a problem by the first value of a single unit and then finding the value by multiplying the single value.

First we need to calculate the difference between the purchase and sale price.

$72.00 - $60.00 = $12.00

Since $12 is the increase in dollars.

To increase as a percentage we need to divide the increase by the original purchase price.

12.00 ÷ 60.00 = 0.2

This simply means moving the decimal place two columns to the right;

0.2 x 100 = 20

Therefore, the percent of the purchase price would be 20% of the sale price.

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Answer:

I think it's C but I might be

Step-by-step explanation:

Answer: y=10.50x

Step-by-step explanation:

The y in this equation represents the dependent varible which is our output what we are solving for. We know that Rafeal gets $10.50 per hour but we don't know how many hours he works so to represent the time we use the variable x. If we were to solve this we would take the hours that he worked and multiplied the number of hours by $10.50 to get y the cost which he earns.

The equation that represents the given statement will be equal to y = 10.50(x) and y is the dependent variable.

Mathematical expressions with two algebraic symbols on either side of the equal (=) sign are called equations.

This relationship is illustrated by the left and right expressions being equal to one another. The left-hand side equals the right-hand side is a basic, straightforward equation.

As per the data mentioned in the question,

Earning made by Rafael per hour = $10.50

Let the number of hours working is x.

Then, the equation that represents the given statement,

y = 10.50(x)

Here, y is the total money earned by Rafael.

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Answer:

y=0x+(-3)

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

I'm bot sure if it is correct

Answer:

The answer is -2(14x - 9)

Step-by-step explanation:

Hoped this helped!

Sorry if this is wrong.

Answer:

1 and 5

2 and 6

3 and 7

4 and 8

Answer: -2 1/2

Step-by-step explanation:

First term = a = -40

Common ratio = 2nd term / First term = 20 / -40 = -1/2

5th term = ar⁴

5th term = -40 × (-1/2)⁴

5th term = -40 × 1/16

5th term = -2 1/2

Answer:

30 is what percent of 25 = 120.

Step-by-step explanation:

Answer:

120

Step-by-step explanation:

Answer:

X= 2

Why

-20=-4x-6x

-20=-10x

-20/x=-10x/x

2=x

Answer:

i love algebra anyways

The ans is in the picture and the stops how i  got it

(hope that helps can i plz have brainlist it will make my day :D hehe)

Step-by-step explanation:

Answer:

b=100

Step-by-step explanation:

not sure how to solve for a

Answer:

the answer is 2.59x10^7

Answer:

D is the correct answer

Answer:

In bold below.

Step-by-step explanation:

a) 12 10 8 6 4

This is an arithmetic sequence with common difference -2.

nth term = a1 + (n - 1)d

= 12 + (n - 1)-2

= 12  -2n + 2

= -2n + 14.

b) 25 20 15 10 5

This is an arithmetic sequence with common difference -5.

nth term = a1 + (n - 1)d

= 25 + (n - 1)-5

= 25  - 5n + 5

= -5n + 30.

Answer:ken

Step-by-step explanation:

Answer:

DF ≅ AC

Step-by-step explanation:

To prove that the triangles are congruent by AAS, we need a side from each triangle to be congruent to the other, correspondingly. So, if AC ≅ DF, we could prove the triangle's congruency by AAS. In the answer choices, the only answer that works is DF ≅ AC.

Answer:

x, greater than sign with a line under it, 14

Step-by-step explanation:

Answer:

it's correct option is

C. x > - 32

Answer:

Step-by-step explanation:

dang this one is hard lol

Answer:

Not for sure

Step-by-step explanation:

Answer:

8i is an imaginary number.

Answer:

£383.07

Step-by-step explanation:

339 X 0.13=44.07

44.07+339=£383.07

4(x/8 - 2) = 1/4(2x - 1/2) is the complete equations for having infinitely many solutions.

We know two simultaneous equations have a unique solution when they intersect at a point,

when they are parallel they have no solution and when they are coinciding they have an infinite no. of solutions.

Given, 4( x/8 - 2) = 1/4(2x -___.

(1/2)x - 8 = (1/8)x - ___.

Now, RHS is half of RHS so the blank space should be (-8/4) = -2.

And we know if one equation is some constant multiple of another they are also coinciding and have an infinite no. of solutions.

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Answer:

5.623x10-11 mol/l

Step-by-step explanation:

pls trust on this one

Answer:

1.

pH is 0 = (1,0)

pH is 1 = (0.1,1)

2.

(0.5,0.301)

3.

f(x+1) because of the horizontal transformation to the left so it has a y-intercept of (0,0).

Step-by-step explanation:

Graphs included

Answer:

no

Step-by-step explanation:

because 1 can equal anything

Answer:

1 equals everything

Answer: The tree has grown 3.45 meters

Step-by-step explanation:

Equation

5.30 = x + 1.85

Given container can hold 2143.57 cu. cm. water.

[tex]V=\frac{4}{3}\times \pi \times r^{3}[/tex],

where 'r' is the radius of the sphere.

For given example,

We have been given a spherical container having radius = 8 cm

The amount of water container can hold = the volume of this spherical container

Using the formula of the volume of the sphere,

[tex]V=\frac{4}{3}\times \pi \times r^{3} \\\\V=\frac{4}{3}\times 3.14 \times 8^{3} \\\\V=2143.57~cm^3[/tex]

Therefore, this container can hold 2143.57 cu. cm. water.

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