All categories

3 years ago

If y=45 when x=15 find x when y=57?

Mathematics

1 answer:

Aliun [14]3 years ago

6 0

Answer:

x=19

Step-by-step explanation:

To find this we need to find the simplest form of y and x

Chart:

----------------------------------------------------------------------------------------------------------------Y | 45 |

X | 15 |

----------------------------------------------------------------------------------------------------------------

To find the simplest form divide both sides with their gcf which is right now 15 so divide by 15: For y 15 divided by 45 is 3, for x 15 divided by 15 is one so the graph looks like this:

----------------------------------------------------------------------------------------------------------------Y | 45 | 3 |

X | 15 | 1 |

----------------------------------------------------------------------------------------------------------------

So now we know this fact we can just divide 57 by 3

(We need to divide it to see how many times does it take for 3 to get to 57 and we can use that number to multiply it with 1 and only one since when y is 3 x is 1.)

57 divided by 3 is 19

So we multiply 19 with 1 which is 19

So x is 19

Graph:

----------------------------------------------------------------------------------------------------------------Y | 45 | 3 | 57 |

X | 15 | 1 | 19 |

----------------------------------------------------------------------------------------------------------------

Hope this helps!

You might be interested in

you deposit $7,900 in a money-market account that pays an annual interest rate of 4.3%. the interest is compounded quarterly. ho

Sladkaya [172]

anonymous 3 years agowe are solving for A, A is the future amount A=? P is the present value, so we were told 7,900, so p=7900 r is the interest rate, so 4.3%, but in decimal form so r=0.043 k is the how often it is 'compounded', it says quarterly, so k=4 n is how long, 3 years, so n=3 A=P(1+rk)n∗k plug in the values
A=8981.51

4 0

3 years ago

What number is a common denominator for 3/8 and 1/3

son4ous [18]

The common denominator for 3/8 and 1/3 is 24.
Reason: to get the common denominator you multiply the denominator of both
8*3= 24

3 0

3 years ago

Billy is constructing a garden divided into 8 equal sections. The diameter of the garden is 12 feet. What is the area, in square

pishuonlain [190]

If the diameter of the garden is 12 ft, then the radius is 6 ft.

The area is then π(6 ft)^2, or 36 ft^2.

Then the area of one of the 8 equal sections of the garden is 36/8 ft^2, or 9/2 ft^2, or 4.5 ft^2.

6 0

3 years ago

Does this figure have symmetry?

marshall27 [118]

No because if you split it in half the halves don’t match

3 0

3 years ago

How much of the backyard is NOT being used for a vegetable garden or pet exercise area?

Nimfa-mama [501]

Area of backyard is not being used 7792 square feet.

Solution:

Length of the backyard = 181 ft

Width of the backyard = 48 ft

Area of the backyard = length × width

= 181 × 48

Area of the backyard = 8688 square feet

Base of the triangle = 16 ft

Height of the triangle = 28 ft

Area of the triangle = $\frac{1}{2}\times \text{base}\times \text{height}$

$$=\frac{1}{2}\times {16}\times {28}$

Area of the triangle = 224 square feet

Length of the rectangle = 32 ft

Width of the rectangle = 21 ft

Area of the rectangular vegetable garden = length × width

= 32 × 21

Area of the rectangular vegetable garden = 672 square feet

Area of backyard not used

= Area of backyard – Area of the triangle + Area of the rectangle

= 8688 – 224 – 672

= 7792 square feet

Area of backyard is not being used 7792 square feet.

3 0

4 years ago