If these both men were working at normal hours, and then, (John) worked "2 more hours" than Gary has, this would just mean that he has worked more.
x+2= x+2.
Now if John has worked the double amount, 4 more times than Gary's usual hours, this would mean something quite different.
Then the expression would look like, (x+2×4x)
We don't know how many hours are the "usual hours", this is what "x" would then represent.
John has then worked (4×2+x) more hours than Gary.
Your answer: (4×2+x)
Answer:
x<7
Step-by-step explanation:
x+5<12
x<12-5
x<7
<span>The answer is 167 milliliters of 7% solution and 333 milliliters of 4% solution x + y = 500 x = 500 - y 0.07x + 0.04y = 25 (substitute 500 - y for x) 0.07(500 - y) + 0.04y = 25 35 - 0.07y + 0.04y = 25 -0.03y + 35 = 25 -0.03y = -10 y = 333.333... y [ = about 333 x = 500 - y = 500 - 333 = 167 hope it helps </span>
Answer:
Correct option: Third one -> 8.2 units
Step-by-step explanation:
Assuming that the function that models the amount of radioactive material remaining after x hours is:
f(x)=10*(0.98)^x
To find the amount of material after 10 hours, we just need to use x = 10 in the equation and find the value of f(x):
f(10) = 10*(0.98)^10
f(10) = 8.1707
Rounding to nearest tenth, we have f(10) = 8.2
Correct option: Third one
The surface area is found by finding the area of all shapes creating the surface, and then adding them together.
Example:
If we have a 5 x 5 x 5 cube, we will find all six sides. Since 5 x 5 is 25, and 25 x 6 = 150, the surface area of this example cube will be 150 units².
<em> Why the x 6? Since it is a cube all the sides have the same area, and a cube has 6 sides.</em>
