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xenn [34]
3 years ago
12

7b+3-4b=3-3(b+4) please solve and give work please.

Mathematics
1 answer:
vovangra [49]3 years ago
3 0

Answer: 6 = - 2.

Step by step explanation:

Subtract 4b from 7b.

3b + 3 = 3 - 3 (b+4)

Simplify 3 - 3 (b+4).

3b + 3 = - 3b - 9

Move all terms containing b to the left side of the equation.

6b + 3 = - 9.

Move all terms not containing b to the right of the equation.

6b = - 12

Divide each term by 6 and simplify.

And, voila! You have your answer, 6 = - 2.

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What is the volume of a prism if the area of its cross-section is 2 m² and its length is 7 m?
DerKrebs [107]

Answer:

14m^3

Step-by-step explanation:

Volume of the prism = base area * height

Given

Area of the cross section = 2m^2

Length = 7m

Substitute

Volume of the prism = 2 * 7

Volume of the prism = 14m^3

Hence the volume of the prism is 14m^3

5 0
3 years ago
The contingency table below gives the counts of students by activities and gender. Band Sports Debate Total Male 105 320 7 432 F
Ber [7]

Answer:

599/711

Step-by-step explanation:

           Band Sports Debate Total

Male     105 320  7         432

Female 105 160         14         279

Total 210 480          21          711


P(female or plays sports)

We want the probability that they are female or play sports, but we cannot double count the female sports players, so we subtract them

 P(female) + P (sports) - (female and sports)

female/total + sports/total - female sports/ total

279/711 + 480/711 - 160/711

599/711

6 0
3 years ago
At 9:00 a.m., it starts snowing outside Dario's home at the rate of 6 inches per hour. If Dario's front door is 84 inches tall,
yanalaym [24]
At 11 pm it will cover the door
6 0
3 years ago
Read 2 more answers
Write three powers with whole number bases that have values greater than 120 and less than 130
vovangra [49]
<span>Three powers with whole number bases that have values greater than 120 and less than 130 are:
</span>11² = 11 x 11 = 121 
<span>5³ = 5 x 5 x 5 =125 </span>
<span>2⁷ = 2 x 2 x 2 x 2 x 2 x 2 x 2 = 128 
</span>
7 0
3 years ago
Hello I need some help with this problem if you don’t know how do this please move along and don’t get me excited and you leave
Aleks [24]
The answer is -30/77
4 0
3 years ago
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