Suppose a varies directly as b, and a=7 when b=2 find b when a =21
1 answer:
Because α varies directley to β

(k = constant)
α=7 when β=2
7= 2k
k=
so when α=21
21=

b
b= 6
You might be interested in
34*a = 64
a = 64/34
a = 32/17
Area of a rectangle = length * width
A = 1.6 *1.2 = 1.92 m²
Because the X value 5 repeats
Answer:
Hope i helped
Step-by-step explanation:
The slope is 2.
hope I helped.