Answer:
Step-by-step explanation:
One guest eats 5/6 pounds.
<u>Divide the total amount of chocolate by this to find the number of guests:</u>
- 20 : 5/6 =
- 20 * 6/5 =
- 24 guests
Multiply 3x +y =23 by -4
x+4y=4
-12x+(-4y)=-92
Add together
-11x = -88
x = 8
Plug x in to find y.
8 + 4y = 4
Subtract 8 from each sides
4y = -4
Divide by 4
y = -1
So the answer is x =8, y= -1
I hope that helps!
2 x 2 x 2 = 8
so 222 would be an even number
Answer:
after 7 days the temperature would be 35 degrees less than the first day.
therefore, -35 would express the change in temp.
Step-by-step explanation:
n = 15
Step-by-step explanation:
- Step 1: Calculate n by using the law of exponents that a^m × a^n = a^m+n
For 2^-6*2^n=2^9, a = 2, m = -6 and m + n = 9
⇒ -6 + n = 9
⇒ n = 15
- Step 2: Given 2³ × 4³=2^9. Use law of exponents to prove it.
⇒ 2³ × 4³ can also be written as 2³ × (2²)³ = 2³ × 2^6 [This is based on the law of exponents (a^m)^n = (a)^m×n]
⇒ 2³ × 2^6 = 2^ (3 + 6) = 2^9 [Using the law of exponents a^m × a^n = a^m+n]