Answer:
X=36
Step-by-step explanation:
Answer:
(x,y)=(-10, -30)
Step-by-step explanation:
x/4 -y/12 = 0
--> x/4 = y/12
substitute into the first eq.
x/4 + y/12 = -5
y/12 + y/12 = -5
2y/12 = -5
y= (-5) * 12/2 = -30
solve for x, x/4 = (-30)/12
x=4* (-30)/12 = -10
Answer:
[ 4 2 ] x [ -2 5 7 -1 ] = [- 10,836]
Step-by-step explanation:
Here, the given expression is:
[ 4 2 ] x [ -2 5 7 -1 ]
Now solving : [ -2 5 7 -1 ] , we get
[ -2 5 7 -1 ] = [-258]
Now simplifying
[-258] x [ 4 2 ] = - 10,836
⇒ [ 4 2 ] x [ -2 5 7 -1 ] = [- 10,836]
Hence the solution is: [- 10,836]
The table is attached.
A) The gasoline consume grows as the distance traveled increases. This means that the two quantities are directly proportional.
Therefore, the proportionality constant is given by:
k = gasoline / distance
= 2 / 40
= 0.05
We could have used also:
k = 3 / 60
= 0.05
In order to find the gasoline consumed, you need to multiply the distance by the proportionality constant:
30 × 0.05 =
1.555 × 0.05 =
2.75In order to find the distance traveled, you need to divide the gasoline consumed by the proportionality constant:
3.5 ÷ 0.05 =
70B) The function of the proportionality found is:
y = 0.05·x
where:
x = distance
y = gasoline
Therefore:
y = 0.05·110 = 5.5
Femi for a trip of 110 miles expects to use
5.5 gallons of gasoline.
not riding a motor cycle given that they read
--------------------------------------------------------
reading
5
----
12
.41666666666
rounding to the nearest hundredth
.42