First you'd substitute x= y-3 in the first equation.
10(y-3) -10y= 1
10y - 30 -10y= 1
The y's cancel each other out, so you're left with -30= 1. That means there's no solution :)
Answer: 18
Step-by-step explanation:
Step-by-step explanation: The ratio of boys to girls in mr johnson's club: 4:12 =1:3
This ratio is same as the ratio of boys to girls inms greenesclub, 1:3
1:3 is same as 6:18
So there are 18 girls in ms greene club
is there any barinliest for me
Answer:
256 cups
Step-by-step explanation:
In this question, we are asked to calculate the number of 8-ounce cups that each of the cooler of water will fill.
This is obviously a conversion type of question. We proceed as follows;
She buys 80 gallons to distribute in 5 coolers, this means each cooler will contain 80/5 = 16 gallons each of water.
Now let’s get the equivalent of this in ounce.
Mathematically, 1 gallon contains 128 ounces.
Since one cooler contains 16 gallons, this means each cooler will contain 16 * 128 = 2,048 ounces of water
Now, we know each cooler of water is to fill a series of 8- ounce cups. We now need to calculate the number of 8-ounce cups that will be filled by the 2,048 ounces cooler.
Mathematically, this is 2,048/8 = 256 cups
Answer:
a) Frequency remains constant
b) Wavelength remains constant
c) speed of the wave remains constant
d) Intensity decreases
e) amplitude of its electric field decreases
Explanation:
a) Frequency can be defined as the number of crests that pass a fixed point in the medium in unit time. It is the source of the wave that will determine the frequency. If the small source is changed to a bigger and faster one then the frequency will change. In our case, there is no change of source of wave, so the frequency remains constant.
b) The speed of of the wave is directly proportional to the wavelength. If we double the speed, the wavelength also doubles. Since the speed has not been doubled in our case, the wavelength will remain constant.
c) As indicated in b) since the wavelength is proportional to speed and it has not changed in our case, then the speed remains constant.
d) The intensity of a wave decreases as it moves further away from the source.
e) The intensity is related to the amplitude. Since the intensity decreases, the amplitude also decreases.
Answer:
Answers are below.
Step-by-step explanation:
Hope this helps:)
