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Varvara68 [4.7K]
3 years ago
14

Help me please it not 2 hard

Mathematics
2 answers:
Goshia [24]3 years ago
5 0
Add both sides by 7: 8b-7=321
Divide both sides by 8: 8b=328
Answer: b=41
Helga [31]3 years ago
3 0
B=41 that would be the answer
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What is the solution to this equation?<br> 2x + 3 = x – 4
gavmur [86]

Answer:

<h3>x = -7</h3>

Step-by-step explanation:

2x + 3 = x – 4

2x - x = -3 - 4

x = -7

5 0
2 years ago
The number 12,300 is written ______. as a coefficient in standard form in scientific notation
dexar [7]
The number 12,300 is written 1.23 x 10⁴ as a scientific notation. It's coefficient is 1.23; base is 10⁴ in exponent form.

Scientific notation is a method developed by scientists to shorten the number that expresses a very large number. The scientific notation is based on powers of the base number 10.

Scientific notation has two numbers: coefficient and base. The coefficient must be greater than or equal to 1 and less than 10. The base is always 10 written in exponent form.

12,300 as coefficient in standard form in scientific notation.

1) put decimal after the first digit and drop the zeros. from 12,300 to 1.23 this is the coefficient.

2) to find the exponent, count the number of places from decimal to the end of the number.
1.2300 ; there are 4 places

So the scientific notation is 1.23 x 10⁴

6 0
2 years ago
A kite descends to the ground from a height of 32 feet. Use an integer to describe the descent.
nydimaria [60]
32-x=0; with x equaling the amount descended or -32.
8 0
3 years ago
Jackson bought 3 pounds of candies for $9.75 What was the price of these candies in dollars per pound?
Stels [109]
9.75 dollars divided by 3 pounds equals 3.25 per pound
8 0
3 years ago
In a lottery game, a player picks six numbers from 1 to 27. If the player matches all six numbers, they win 40,000 dollars. Othe
Alexus [3.1K]

Answer:

We conclude that  expected value of this game is -0.865$.

Step-by-step explanation:

We know that in a lottery game, a player picks six numbers from 1 to 27.

We know that

C_6^{27}=296010

As there is only one advantageous combination, we conclude that the number of non-winning combinations is 296009.

He can win 40,000 dollars.

We calculate:

E(X)=\frac{1}{296010}\cdot 40000\$- \frac{296009}{296010}\cdot 1\$\\\\E(X)=\frac{40000-296009}{296010}\, \$\\\\E(X)=-0.865\, \$

We conclude that  expected value of this game is -0.865$.

7 0
3 years ago
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