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3 years ago

Simplify b - 3 + 6 - 2b

Mathematics

2 answers:

Mariulka [41]3 years ago

8 0

Answer:

-b+3

Step-by-step explanation:

B-2b=-b

-3+6=3

mylen [45]3 years ago

3 0

Answer:

b+3

Step-by-step explanation:

Combine like terms so you add positive 1b to the negative 2b to get b and then negative 3 plus 6 is 3

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What is the base if the height is 6ft and the area is 14 ft on a triangle

insens350 [35]

Answer:

b = 4.66666667

Step-by-step explanation:

The equation for finding the area of a triangle is

0.5b x h = a

b = base

h = height

a = area

So I calculated 14 divided by 6

And got 2.3333333

And since that number is half of the base, I multiplied it by 2

2.333 x 2 ≈ 4.66666667

4 0

3 years ago

What Fraction Of The Wall Did Kevin Paint?

Mila [183]

Kevin painted $\frac{1}{9}$ of the wall.

Solution:

Fraction of the wall painted by Elena = $\frac{5}{9}$

Fraction of the wall painted by Matthew = $\frac{3}{9}$

Fraction of the wall painted by Kevin = ?

Full wall can be taken as 1.

<u>To find the wall painted by Kevin:</u>

Rest of the wall = Full wall – painted by Elena – Painted by Matthew

$$=1-\frac{5}{9}-\frac{3}{9}$

$$=\frac{1}{1} -\frac{5}{9}-\frac{3}{9}$

To make the denominator same, multiply the numerator and denominator of the first term by 9.

$$=\frac{9}{9} -\frac{5}{9}-\frac{3}{9}$

$$=\frac{9-5-3}{9}$

$$=\frac{1}{9}$

Rest of the wall = $\frac{1}{9}$

Hence the kevin painted $\frac{1}{9}$ of the wall.

6 0

3 years ago

Are these scalene triangles similar?

AnnZ [28]

Yes! pretty sure they are

8 0

3 years ago

Ben's living room is a rectangle measuring 10 yards by 168 inches. by how many feet does the length of the room exceed the width

rjkz [21]

Since you are going in feet first calculate10 yards into feet and then 168 inches into feet. Then subtract the two. Hope that helped :)

5 0

3 years ago

The percent amounts of sand in 5 soil samples from the same garden are 73%, 68%, 88%, 74%, 81%. What is the average percent of s

alina1380 [7]

0.73+0.68+0.88+0.74+0.81=3.84

3.84 divided by 5
=0.768x100
=76.8% or 77%

3 0

3 years ago

Read 2 more answers