Answer:
5091 Km/hr and 505 km/hr
Step-by-step explanation:
Speed = Distance / Time
Let the speed of first automobile be 'x' and that of the second be 'y'
Since speed of one is 10 times greater than the other. therefore;
⇒ x = 10 y
also let time for faster automobile be 'T' and time for slower auto mobile be 't'
Since first arrive one hour earlier than second, therefore;
⇒ t = T + 1
⇒ For first automobile; 
; substituting for 'x' and 'T'. Therefore;
⇒ 
⇒ For Second automobile; 
⇒ 
⇒ 
⇒ 5600 + 
= 560
⇒ 5600 - 560 = -
⇒ t = 1.11 hr
also ; T = 1.11 - 1 = 0.11 hr
Speed of 1st auto = 560/0.11 = 5091 km /hr
Speed of 2nd auto = 560/1.11 = 505 km/hr
Answer:
a proportional relationship exists if the ratio of values is a constant
Step-by-step explanation:
The equation describing a proportional relationship is ...
y = kx
If you are given a table of values of x and y, they will be proportional if ...
y/x = k
for all (x, y) pairs.
Answer:
7
Step-by-step explanation:
Set up an equation using slope intercept form.
y = mx + b
75 = 8x + 15
Solve.
75 = 8x + 15
-15 -15
60 = 8x
7.5
Round down as it is dealing with money and he would not have enough to purchase an 8th grocery.
7 is the final answer.
Hope this helps!
V=hpir^2
h=20
r=12
v=20pi12^2
v=20pi144
v=2880pi
2nd one is answer
Hello! ;3
<em>Steps:</em>
<h3><em>
</em></h3><h3 />
<u><em>we have to convert the mixed fraction to improper :D</em></u>
<h3>3×5+1=16</h3><h3 /><h3>
</h3><h3 /><h3><em>
× </em>
=</h3><h3 /><h3>
</h3><h3 /><h3><u><em>Divide:</em></u></h3><h3 /><h3><u><em>320 ÷ 5 =</em></u></h3><h3 /><h2><u>64 </u></h2><h2 /><h2 /><h2 /><h2 /><h2 /><h2 /><h2 /><h2 /><h2 /><h2 /><h2 /><h2 />
YOU'RE WELCOME :3
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