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jeka57 [31]
3 years ago
11

How do you solve: 2(b - 5) + 7b-4

Mathematics
2 answers:
Blizzard [7]3 years ago
8 0

Answer:

9b-14

Step-by-step explanation:

2(b-5)+7b-4

First you want to do what is in the parenthesis:

2 times b   2 times 5

The two is on the outside of the parenthesis which means you multiply it times the variable and the number.

Simply: 2b-10+7-+4

Now, you want to break the equation down. Both 7 and 2 have 'b' so you can add the two together.

2b+7b=9b

-10 and -4 can be put together. 4 is negative so you would subtract the two numbers.

-10-4= -14

Next, you want to take the two numbers 9b and -14 and put them into equation form.

9b-14

<u>I hope this helped! </u>

Alinara [238K]3 years ago
4 0
2(b-5)+7b-4
Solve 2(b-5) to get 2b-10
Combine your like terms 2b-10+7b-4
Solve 2b+7b to get 9b
Solve -10+(-4) to get -14
So your answer is
9b-14

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60 miles per hour x 1/2 hour = 30 miles.

Total = 20 + 30 = 50 miles.

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3 years ago
Find each measure.
andreyandreev [35.5K]

Answer:

The BMW E30 is the second generation of BMW 3 Series, which was produced from 1982 to 1994 and replaced the E21 3 Series. The model range included 2-door sedan and convertible body styles,[4][5] as well as being the first 3 Series to be produced in 4-door sedan and wagon/estate body styles. It was powered by four-cylinder petrol, six-cylinder petrol and six-cylinder diesel engines, the latter a first for the 3 Series. The E30 325iX model was the first BMW to have all-wheel drive.

Step-by-step explanation:

4 0
3 years ago
Need help! With this question! Thank you
slava [35]

Answer:

M = 42

Step-by-step explanation:

Ooo..I'm actually good at these!!

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When we divide, we get m alone.

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/4.5       /4.5

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8 0
3 years ago
Read 2 more answers
Choose the correct conic section to fit the equation.
yanalaym [24]

Answer:

Option A) Circle.

Step-by-step explanation:

We are given the equation:

(x - 3)^2 + (y - 12)^2 = 25

A general equation of the circle is of the form:

(x-h)^2 + (y-k)^2 = r^2

where (h,k) is the center of the circle and r is the radius of circle.

Comparing the two equations, we get,

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3 years ago
The grocery store makes a 20% profit on baked goods. The profit for baked goods last month was $600. What was the total sales fo
torisob [31]

Let x = total sales of baked goods      remember 20% = .20 as a decimal

so the equation would be .20x = $600

divide both sides by .20

                                     .20x/.20 = $600/.20

           

                                                x = $3000 the total sales of baked goods

CHECK:  20% times $3000 = .20 times $3000 = $600

4 0
3 years ago
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