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2 years ago

Does 1b plus 3b equal 4b

Mathematics

2 answers:

stich3 [128]2 years ago

4 0

Yes just think like terms like if it was 1a+3c then no but since they both are bs the it works

Rasek [7]2 years ago

3 0

Yes. B/c as long as it has the same variable, you can add them, subtract, or anything else to them. As long as they have the same variable in common.

Hope this helps (:

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A rectangular yard measuring 39 ft by 67 ft is bordered (and surrounded) by a fence. Inside, a walk that is 4 ft wide goes all t

Gekata [30.6K]

The area of the walk is 784 square feet

Area is the quantity that expresses the extent of a region on the plane or on a curved surface

First, calculate the area of the rectangular yard.

Area = L x W

where A equals area, L equals length, and W equals width.

According to the stated problem:

A = 39 x 67

A = 2613 square feet <-------Area of Rectangular yard.

Now, according to the stated problem there is a walk that is 4 feet wide going all the way along the fence (Inside). "

Therefore, we have 8 feet to subtract from each of the values above (39) and (67).

That is 4 feet on each side,

A = L x W

A = 31 x 59

A = 1829 square feet <----------Area of new rectangle formed by allowing for three foot walk.

Now, subtract the area of the new rectangle formed from the area of the original area. Doing so, will give you the area of the walk, correct?

Original area = 2613 square feet

New area = 1829 square feet

Hence, the Area of WALK = 784 square feet

Learn more about area on: brainly.com/question/22972014

#SPJ1

3 0

4 months ago

The midpoint of AB is M(3, -1). If the coordinates of A are (5,1), what are the

Vera_Pavlovna [14]

Given parameters:

Midpoint of AB = M(3, -1)

Coordinates of A = (5,1)

Unknown:

Coordinates of B = ?

Solution:

To find the mid point of any line, we use the expression below;

$x_{m} = \frac{x_{1} + x_{2} }{2}$ and $y_{m} = \frac{y_{1} + y_{2} }{2}$

where $x_{m}$ and $y_{m}$ = coordinates of the mid points = 3 and -1

x₁ = 5 and y₁ = 1

x₂ = ? and y₂ = ?

Now let us input the variables and solve,

3 = $\frac{5 + x_{2} }{2}$ and -1 = $\frac{1 + y_{2} }{2}$

5 + x₂ = 6 -2 = 1 + y₂

x₂ = 1 y₂ = -2 -1 = -3

The coordinates of B = 1, -3

6 0

2 years ago

How many different 5-person subcommittees can be formed from a club having 12 members

Wittaler [7]

Given that there are 12 persons, the first choice may be in 12 different ways, the second choice may be in 11 different ways, ther third in 10 different ways, the fourth in 9 different ways and the fith in 8 different ways, for a total of:

12x11x10x9x8 different combinations.

Now you have to take in account that 5x4x3x2 are repetitions. So you have to divide the previos counting by 5x4x3x2.

(12x11x10x9x8)/(5x4x3x2) = 792 different subcommittees.

Also, you can use the formula for combinations: C(m,n) = m! / (n! (m-n)!)

C (12, 5) = 12! / (5!) (12-5)! = [12x11x10x9x8x7!] / [5! 7!] = [12x11x10x9x8]/[5x4x3x2] = 792

3 0

2 years ago

The students at Desert Springs middle school thinks 70% of the teachers care about them. Enter the fraction of the teachers that

Yanka [14]

Answer:

7/10

Step-by-step explanation:

The students at Desert Springs middle school thinks 70% of the teachers care about them.

The fraction of the teachers that the students think cares about them is given as:

70%

= 70/100

= 7/10

Therefore, the fraction of the teachers that the students think cares about them is 7/10

4 0

2 years ago

Find 5/6 of 15. Express your answer in simplest form.

brilliants [131]

I would say 95/6 because you multiply 5 and 15 and turn it into an improper fractions

6 0

2 years ago