Instruction: circle the right answer for each question (1point each).

and vary directly and when . What is the value of
y when ?
a 36
b. 45
c 50
d. 54

Ask by Fleming Todd. in China

Jan 13,2025

Question

Instruction: circle the right answer for each question (1point each).

and vary directly and when . What is the value of
y when ?
a 36
b. 45
c 50
d. 54

Ask by Fleming Todd. in China

Jan 13,2025

UpStudy AI · Accepted Answer

**1.** $$ x $$ and $$ y $$ vary directly. Given $$ x = 15 $$ when $$ y = 27 $$, the constant of variation $$ k $$ is:

$$
y = kx \implies 27 = k \times 15 \implies k = \frac{27}{15} = 1.8
$$

When $$ x = 25 $$:

$$
y = 1.8 \times 25 = 45
$$

**Answer:**  
**b. 45**
When $$ x = 25 $$, $$ y = 45 $$.