Answer:
17u+15
Step-by-step explanation: 15u+2u=17u add 8+7=15
Let x = number of $10 coins.
The total number of coins is 44, therefore there are (44-x) $20 coins.
Total value:
10x + 20(44-x) = 620
-10x + 880 = 620
-10x = -260
x = 26 (number of $10 coins)
44-x = 44-26 = 18 (number of $20 cons)
Answer:
26 $10 coins
18 $20 coins
Well, -4 + -7 is -11 so it would be seven points on the coordinate plain.
Answer:
c) x^6 y^11 z^6
Step-by-step explanation:
When multiplying exponents with the same variables, you add them.
so x^4(x^2) would be 4+2 and therefore x^6.
keep in mind this doesn't apply for different variables
(xy^2)(x^2y) will not be added!!
The correct answer is 47/6 or 7 5/6
To find this we need to first make them improper fractions instead of mixed numbers. You can do this by multiplying the whole number by the bottom (denominator) and adding it to the top (numberator). Then putting it over the bottom again. He's this in action:
-2 1/3
3*2 + 1 = 7
-7/3
So the first term is actually -7/3. Lets do the same for the second.
-10 1/6
6*10 + 1 = 61
-61/10
Now that we have these, we can give them common denominators and complete the action.
-7/3 - (-61/6)
-14/6 + 61/6
47/6 or 7 5/6