1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
lianna [129]
3 years ago
9

So in the equation b - 9 + 6b = 30,

Mathematics
1 answer:
lutik1710 [3]3 years ago
3 0
B - 9 + 6b = 30
You need to add all the b's up on the left side of the equation first.  So it rewrites like this:
7b - 9 = 30
next you add 9 to each side to get 7b alone on the left side.
7b = 39
now divide both sides by 7 so that b is all by itself.
b = 5 4/7 or 5.57
You might be interested in
Two glasses contain orange juice.
EastWind [94]

Step-by-step explanation:

Amount of orange juice in 400ml glass

= 400ml * (40%/100%) = 160ml.

Amount of orange juice in 300ml glass

= 300ml * (1/2) = 150ml.

Since 150ml < 160ml, the 300ml glass contains less orange juice.

8 0
3 years ago
The sum of n consecutive even numbers can be found using S=n2+n, where n &gt; 2. What is the value of n when the sum is 156
Volgvan
The sum<span> of </span>n consecutive even numbers can<span> be </span>found using S=n2+n<span>, where </span>n<span> > </span>2<span>. What is the </span>value<span> of</span>n<span> when the </span>sum<span> is </span>156<span> - 3304678.</span>
8 0
3 years ago
Beth is cooking pizzas and cuts each one into 8 pieces. If she has 14 people coming to her house for dinner and she thinks that
Gennadij [26K]
She would make 7 pizzas
4 0
3 years ago
Read 2 more answers
The incubation time for Rhode Island Red chicks is normally distributed with a mean of 21 days and a standard deviation of appro
34kurt

Answer:

a - c

Step-by-step explanation:

if standard is 21 days then in incubator will hatch faster or at the same time but with high percentage of hatching a chick (btw hi from rhodes)

5 0
3 years ago
What is the derivative of this function: F(x)=(5e^4x)+(e^-x^6)
Fed [463]

Answer:

\dfrac{dF(x)}{dx} =20e^{4x}-6x^5e^{x^{-6}}

Step-by-step explanation:

The derivative of F(x) is calculated as follows:

\dfrac{dF(x)}{dx}=\dfrac{d}{dx} [(5e^{4x})+(e^{-x^6})]

\dfrac{dF(x)}{dx}=\dfrac{d}{dx} [(5e^{4x})]+\dfrac{d}{dx} [(e^{-x^6})]

\dfrac{dF(x)}{dx}=5\dfrac{d}{dx} [(e^{4x})]+\dfrac{d}{dx} [(e^{-x^6})]

using the chain rule we find that

\dfrac{d}{dx} [(e^{4x})]= \dfrac{d}{d(4x)} [(e^{4x})]+ \dfrac{d}{dx} [4x] = 4e^{4x},

\dfrac{d}{dx} [(e^{-x^6})] = \dfrac{d}{d(-x^6)} [(e^{-x^6})]+\dfrac{d}{dx} [(-x^6})]= -6x^5e^{-x^6};

therefore,

\dfrac{dF(x)}{dx}=5\dfrac{d}{dx} [(e^{4x})]+\dfrac{d}{dx} [(e^{-x^6})] =5(4e^{4x})-6x^5e^{x^{-6}}

\boxed{\dfrac{dF(x)}{dx} =20e^{4x}-6x^5e^{x^{-6}}}

8 0
3 years ago
Other questions:
  • Use equal intervals to make a frequency table for the average number of movies per person. You do not need to show tally marks.
    12·1 answer
  • Simplify the expression. Write the answer in scientific notation
    7·1 answer
  • Hellllllllllllppppppppp
    6·1 answer
  • The equation x + 2y = 16 is in standard form.
    15·1 answer
  • 11. Find the product: (50z + 20)(10z + 4) ( 1 ) 12. Find the product: (88a + 80)(8a + 8) ( 1 ) 13. Find the product: (40y + zy)(
    5·1 answer
  • What is the surface area?
    12·1 answer
  • SLOPE AGAIN HEE HEE PLEASE HELP ME! + 50 WHOLE POINTS
    14·1 answer
  • Y−56=4(x+5).<br> Find the answer
    13·1 answer
  • HELP
    7·1 answer
  • Guys pls helpp me!!!!
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!