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3 years ago

What does 2b+9 when b=3 like the hell

Mathematics

2 answers:

BabaBlast [244]3 years ago

5 0

You plug 3 into B so 2(3) + 9 = 15

beks73 [17]3 years ago

3 0

So let’s start from the beginning. 2 is by B, so that means we have to MULTIPLY 2 by whatever B equals. B equals to 3, so we have to multiply 2 by 3, which equals 6. Then, we add 6 and 9, which is 15. Your final answer is 15. Hope that helps!

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Which line has a slope of -2

Alina [70]

Answer:

Line B

Step-by-step explanation:

I found the slope of Line B, it was -2, by looking at the distance rise/run between two points in the line.

Hope this helps. :)

6 0

2 years ago

Between 1965 and 1980, the world population grew at an annual rate of 2%. Using the rule of 72, population is expected to double

Fiesta28 [93]

Answer:

The population is expected to double in 36 years

Step-by-step explanation:

According to the the rule of 72,

A value is doubled if the product of the annual rate and number of years is 72,

Given,

The annual rate of interest = 2%

Let x be the time in years after 1965,

By the above statement,

The population will double if,

x × 2 = 72 ⇒ x = 36

Hence, the after 36 years since 1965 the population will be doubled,

i.e in 2001. ( ∵ 36 years after 1965 )

4 0

3 years ago

Alguien me ayuda a resolver esto por favor es urgente 1/2+1/4=

natulia [17]

Answer:

Step-by-step explanation:

Solo quiero ganar puntos

5 0

2 years ago

The perimeter of the flag is 2080 ft what is the flags width and length of the length is 420 ft greater than the width

hram777 [196]

Answer:

The length of the flag is 730 ft and the width is 310 ft

Step-by-step explanation:

The correct question is

The perimeter of the flag is 2080 ft what is the flags width and length if the length is 420 ft greater than the width

Let

L ----> the length of the flag

W ---> the width of the flag

we know that

The perimeter of the flag (rectangle) is equal to

$P=2(L+W)$

we have

$P=2,080\ ft$

$2,080=2(L+W)$

$1,040=L+W$ ----> equation A

$L=W+420$ ---> equation B

Solve the system by substitution

substitute equation B in equation A

$1,040=(W+420)+W$

solve for W

$1,040=2W+420$

$2W=1,040-420$

$2W=620$

$W=310\ ft$

Find the value of L

$L=W+420$ ----> $L=310+420=730\ ft$

therefore

The length of the flag is 730 ft and the width is 310 ft

5 0

3 years ago

90% of what = 81,000

olga2289 [7]

Answer:

90000

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers