10 to the power of 3 is 1000, and 400 divided by 1000 is 0.4 because you move the decimal place over 3 in the number 400 to get 0.4.
Half of 2/3 is:
This means that 1/3 was left. This also means that they ate 1/3 of the lasagne.
Model diagram can be seen in attachment.
2+3(2x-5)-3(4z+6)-8
2+3(2x)+3(-5)-3(4z)-3(6)-8
2+6x-15-12z-18-8
2-15+6x-12z-18-8
-13+6x-12z-26
-13-26+6x-12z
-39+6x-12z
6x-12z-39
Answer:
Step-by-step explanation:
Remark
The slope intercept line is written as y = mx + b in it's general form.
You can get the slope, m, immediately because it is given as -2
So far what you have is y = -2x + b
y intercept
To get the y intercept, use the point (-3 , 4)
x = - 3
y = 4
4 = -2*(-3) + b
4 = 6 + b Subtract 6 from both sides
4 - 6 = 6-6 + b
b = - 2
Line
y = -2x - 2
(a,8)
y = -2a - 2
8 = -2a - 2 Add 2 to both sides
8 +2 = -2a -2+2 Combine
10 = - 2a Divide by - 2
10/-2 = a
a = -5
(5,b)
y = -2x - 2
x = 5
y = b
b = -2*5 - 2
b = -10 - 2
b = - 12
Answer:
217.7777 m/s
Step-by-step explanation:
1km = 1000 metros
784 km = 784*1000 = 784000 metros
1 hora = 3600 segundos
entonces:
784 kilómetros en una hora = 784km/h = 784000m/3600ses
= 217.7777 m /s
es decir que recorre en cada segundo:
217.7777 metros.
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