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adelina 88 [10]
3 years ago
11

0.5b+4=2(b+2) I need help on this question?

Mathematics
2 answers:
mafiozo [28]3 years ago
8 0

Answer: b=0

Step-by-step explanation:

0.5b+4=2(b+2)

0.5b+4=2b+4

4=1.5b+4

0=1.5b

b=0

uranmaximum [27]3 years ago
8 0
B = 0.25 because the first side sums up to 4.5 and if you input .25 as b you’ll see you get 4.5 which means both sides are equal, as they should be.
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Three times a number decreased by 2 equals forty
Naddik [55]

Answer:

14

Step-by-step explanation:

40 plus 2 is 42

42 divided by 3 is 14

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2 years ago
Hallar el perimetro y area de la figura (find the perimeter and area of ​​the figure)
julia-pushkina [17]

Answer:

笑话

Step-by-step explanation:

6 0
2 years ago
A man is building a gazebo and plans to use for the floor two boards that are 8 and three fourths feet ​, four boards that are 1
MakcuM [25]

Answer:

The total number of feet in all the boards is 90 and 5/6 feet

Step-by-step explanation:

First, it is necessary to transform the mixed number into a fraction. This can be made following the next rule:

a\frac{b}{c} = \frac{(a*c) + b}{c}

So, the number 8 and three fourth feet is equal to:

8\frac{3}{4} = \frac{(8*4) + 3}{4} = \frac{35}{3}

That means that we two boards that are 35/3 feet. So, multiplying 2 by 35/3 we get the total feets for the first type of board. That is:

2*\frac{35}{3} = \frac{2*35}{3} =\frac{70}{3}

At the same way, we can calculate the total number of feet for the second and third type of board as:

  • Four boards that are 13 and five eighths feet:

13\frac{5}{8} = \frac{(13*8) + 5}{8} = \frac{109}{8}

4*\frac{109}{8} = \frac{4*109}{8} =\frac{109}{2}

  • Two boards that are 6 one half feet:

6\frac{1}{2} = \frac{(6*2) + 1}{2} = \frac{13}{2}

2*\frac{13}{2} = \frac{2*13}{2} =13

Finally, to find the total number of feet in all the boards, we need to sum the total number of feet for every type as:

\frac{70}{3} +\frac{109}{2} +\frac{13}{1} =\frac{545}{6}

Converting this number to a mixed number we get:

\frac{545}{6} =90\frac{5}{6}

Because, when we divide 545 by 6, we get 90 as a quotient, 5 is the remainder and 6 is the divisor.

3 0
2 years ago
Simply the expression -3(x+3)2-3+3x. what is the simplified expression in standard form?
Lyrx [107]
(-3x-9)× 2
-6x-18 -3 +3x
-3x -21
3 0
2 years ago
Read 2 more answers
Maria, a biologist, is observing the growth pattern of a virus. She starts with 100 of the virus that grows at a rate of 10% per
Leni [432]
<h3>Answer: 985</h3>

=============================================

Work Shown:

A = amount after t hours

P = initial amount = 100

r = growth rate in decimal form = 0.10

t = number of hours = 24

--------

A = P*(1+r)^t

A = 100(1+0.10)^24

A = 100*(1.10)^24

A = 100*9.84973267580762

A = 984.973267580762

A = 985

5 0
3 years ago
Read 2 more answers
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