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Mrac [35]
3 years ago
14

One number is three less than two times another number. If the sum of the numbers is 15, find the numbers

Mathematics
1 answer:
evablogger [386]3 years ago
7 0

9514 1404 393

Answer:

  6, 9

Step-by-step explanation:

Let x represent one of the numbers. Then the other number is 15-x (because their sum is 15). The relation between the numbers is ...

  2x -3 = 15 -x . . . . . three less than twice one number is the other number

  3x = 18 . . . . . . add 3+x

  x = 6 . . . . . . divide by 3

  15-x = 9 . . . . find the other number

The two numbers are 6 and 9.

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Can you guys give me a serious answer please?
grin007 [14]

Answer:

800 bacteria

Step-by-step explanation:

Answer of this question depend upon number of hours at the end of day

Let Take Full Day of 24 hrs

Colby bacteria will doubled 12 times ( doubled once in 2hrs => 24/2 = 12)

Colby bacteria at end of day = 50 * 2¹²

Jaquan bacteria will doubled 8 times ( doubled once in 3hrs => 24/3 = 8)

Let say Jaquan bacteria at start  of Day = J

Jaquan bacteria at end of day = J * 2⁸

Equating Both

J * 2⁸ = 50 * 2¹²

=> J = 50 * 2⁴

=> J = 50 * 16

=> J = 800

Jaquan will start  with 800 Bacteria

4 0
2 years ago
A = {1, 2, 5, 7}<br> B = {3, 4, 6, 7}<br> C = {0, 5, 8, 9}<br> Find A U B U C.
castortr0y [4]

Answer:  In set theory, the union (denoted by ∪) of a collection of sets is the set of all elements in the collection. It is one of the fundamental operations through which sets can be combined and related to each other.

A U B U C = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9 }

Step-by-step explanation:

A = {1, 2, 5, 7}

B = {3, 4, 6, 7}

C = {0, 5, 8, 9}

A U B U C = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9 }

6 0
3 years ago
Which expression plzzzz helpppppppp
lara31 [8.8K]
Answer is D

sum of constants = 8 + 4 = 12
sum of coefficients = 7 + 3 = 10

12 > 10  
7 0
3 years ago
What is the value of x?<br> HELP! Please
Anastaziya [24]
D. 68
I don’t remember what formula this is called but the formula says that all angles in a triangle should add up to 180, so 75+37= 112, 180-112= 68
8 0
3 years ago
Read 2 more answers
Which system of linear equations appears to have a solution of (–1, 4)? On a coordinate plane, 2 lines intersect at (1, negative
madam [21]

Answer:

On  coordinate plane, 2 lines intersect at (negative 1, 4)

Step-by-step explanation:

negative 1 = -1, 4 = 4

therefore this means that this coordinate is also (-1, 4)

6 0
3 years ago
Read 2 more answers
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