10 + -70
Step-by-step explanation:
Answer:
b = 5/12
Step-by-step explanation:
1. Cross multiply -> 1 x 5 = 5 and 3b x 4 = 12 b
2. Simplify -> 5 = 12b and switch sides so it's easier: 12b = 5
3. Divide both sides by 12 -> 12b ÷ 12 = b and 5 ÷ 12 = 5/12
4. So, the answer is b = 5/12
Hope this helps! :)
Use symbolab, it's very helpful
1. X = 4.5
2. X= 14 I’m not sure for 2 but number one is write
I'm not sure if this is the answer you are looking for, but the number before a variable is called a coefficient.
The answer is B. When dividing exponents, you divide the coefficients and subtract the exponents from the numerator to the denominator.
So, in this case, 16/8 is 2 (eliminating C and D). Then, you subtract the exponents on r and s. For r, that’s 6-2 so the answer will be r^4. For s, that’s 3-6 so the answer will be s^-3, or 1/s^3. Put it all together and you get 2r^4/s^3, or B.