When x is doubled, y is doubled. When z is multiplied by 5/8, so is y. The result of both changes is that y is multplied by 2·(5/8) = 5/4. The new value of y is
... y = 5/4·320 = 400
_____
If you really want to, you can use the formula
... y = kxz
and compute the value of k as
... k = y/(xz) = 320/(4·16) = 5
Then use this formula with the new values of x and z:
... y = 5·8·10 = 400
1 to 45 is 45
90 divided by 2 is 45
135 divided by 4 is 45
180 divided by 4 is 45
all of them have the same relationship and a proportional to each other
Answer:
P = (4.8, 11)
Step-by-step explanation:
P = <u>3R</u><u> </u><u>+</u><u> </u><u>2W</u><u> </u>
RP + PW
= <u>3</u><u>(</u><u>4</u><u>,</u><u>5</u><u>)</u><u> </u><u>+</u><u> </u><u>2</u><u>(</u><u>6</u><u>,</u><u>2</u><u>0</u><u>)</u>
2 + 3
= <u>(</u><u>1</u><u>2</u><u>,</u><u>1</u><u>5</u><u>)</u><u> </u><u>+</u><u> </u><u>(</u><u>1</u><u>2</u><u>,</u><u>4</u><u>0</u><u>)</u>
5
= <u>(</u><u>24</u><u>,</u><u>5</u><u>5</u><u>)</u> = (4.8, 11)
5
Answer:
Runner A is faster than Runner B.
Runner B has a head start.
Step-by-step explanation: