Answer:
(1-33/100)x and 0.67x
Step-by-step explanation:
33% is 33 out of 100, or 33/100. Since the new recipe has 33%, or 33/100, less sodium, this means we take x, the amount in the old soup, and subtract 33/100 from it:
1 - 33/100 would represent the percent of sodium remaining, and x is the original amount, giving us (1-33/100)x.
If we write this percent as a decimal, we get 0.33. Taking this away from 100%, which is written in decimal form as 1, we get
1 - 0.33 = 0.67
Now we multiply this by the original amount of sodium, x:
0.67x
Answer:
b = 30 degrees
a = 150 degrees
Step-by-step explanation:
Let's call <em>a</em> to the first angle and <em>b</em> to the second one. So we have:
a = 5*b (1)
and it says that the greater angle has 120 degrees more than the lesser angle. So It will be:
a = 120+b (2)
We just need to solve both equations. We can equal both of them.
5b = 120+b
4b = 120
b = 30 degrees
Therefore a = 5*30 = 150 degrees
a = 150 degrees
I hope it helps you!
It's 6. 6 times 4 is 24, and 24 minus 10 is 14
Step-by-step explanation:
We have a total of 178 6th and 7th graders. And we are informed that there are 12 more 6th graders the 7th graders. Let x = the number of 7th graders
x + (x + 12) = 178
Subtract 12 from both sides
x + x = 166
Add like terms
2x = 166
x = 83
So, there are 83 7th graders. And add 12 to find the number of 6th graders.
12 + 83 = 95
