y=13.34 when x=15
Step-by-step explanation:
We are given that x varies directly with y i.e y ∝ x
We know that: y ∝ x then
y= k/x
where k is constant.
So, if y=10 and x=20 we can find k
Now, we need to find y when x=15
We know that k = 200,
So, 
So, y=13.34 when x=15
Keywords: Direct variation
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Answer:
- 240
Step-by-step explanation:
We have to find the value of the following determinant
Now, we know that the value of a general determinant 
is given by [a( ei - fh) + b(fg - di) + c(dh - eg)]
Therefore, the value of the given determinant is
= 4[0 × 4 - (-1)(-2)] + 8[3(-1) - 4 × 4] + 10[4(-2) - 3 × 0]
= - 8 - 152 - 80 = - 240 (Answer)
Answer:
its 9 x 56 then 13 x 16
Step-by-step explanation:
Answer:
do 20 times 67 and it will equal 1,340
Step-by-step explanation:
1
20
x 67
1 , 3 4 0
Let’s say
Length= L
Width= W
L=2w
L+L+w+w=48 = 3L=48
48/3=16
L=16
W=8
