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3 years ago

-67b + 6 ≤ 9b + 43 solve for b

Mathematics

1 answer:

qaws [65]3 years ago

5 0

Answer:

b ≥ -(37/76)

Step-by-step explanation:

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The length of a rectangle is

UkoKoshka [18]

Answer:

5 meters

Step-by-step explanation:

We should derive an equation to solve this problem.

Let's assign x to width and y to length.

$2x-4=y$

and

$2x+2y=22$

$2x+2(2x-4)=22$

$2x+4x-8=22$

$6x-8=22$

$6x=30$

$x=5$

Width = 5 meters

3 0

3 years ago

Solve the inequality: -1/4(x^2-4x+3)>0

Montano1993 [528]

Ok so assume that if you have
xy=0 then x and y=0
-1/4(x^2-4x+3)>0
multiply both sides by -4 to clear fraction (-4/-4=1)
flip sign
x^2-4x+3<0
factor
(x-3)(x-1)<0

we know that (+) times (-)=(-) and
(-) times (-)=(+) so we don't want them to be both negative, we want different sign
we cannnot have 3 since it would be (0)(2)<0 which is false
we cannot have 1 either since (-2)(0)<0 is also false
lets see if the solution is in betwen 3 and 1 or outside of 3 and 1
ltry 2
2^3-4(2)+3<0
8-8+3<0
3<0
false
therefor it is outside ie
x>3 and x<1

5 0

3 years ago

There are 42 students on a large bus and the rest are on a smaller bus. If 40% of the students are on the smaller bus how many t

Liono4ka [1.6K]

Answer:

<u>There are 70 students on the two buses, 42 on the large and 28 on the smaller.</u>

Step-by-step explanation:

1. Let's review the information provided to us to answer the question correctly:

Number of students on the large bus = 42

Number of students on the small bus = 40% of the students

2. How many total students are on the two buses?

For answering the question, we will use the Rule of Three Simple, this way:

42 students are 60% of total students, how much students are the 100%?

Total students = 42 * 100/60

Total students = 4,200/60 = 70

<u>There are 70 students on the two buses, 42 on the large and 28 on the smaller.</u>

5 0

3 years ago

2. A complete set of a grade school uniform requires 1 3/4 meters of white cloth

Andrei [34K]

Answer:

61.25 M

Step-by-step explanation:

the question is trying to mislead you with the blue amount, you are only looking for the amount of white needed.

this means you multiply 1.75 (1 3/4) times 35 sets, getting you 61.25 M

7 0

3 years ago

Read 2 more answers

Solve: –3x – 24 ≤ –36 what is x equal to?

Kay [80]

Answer:

X <= 4

Step-by-step explanation:

-3x - 24<= -36

Make -3x the subject, by carrying -24 to the other side

Note: Moving -24 to the other side changes to + 24

-3x <= -36 + 24

-3x <= - 12

Minus cancels minus

3x <= 12

Divide both sides by 3,to get the value of x

3x/3 <= 12/3

x <= 12/3

x <= 4

Therefore, x equals to 4

6 0

3 years ago

Read 2 more answers