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Ivahew [28]
2 years ago
13

A number is greater than another number by 5. if their sum is 21, find the number​

Mathematics
2 answers:
DochEvi [55]2 years ago
6 0

Answer:

x=13

y=8

Step-by-step explanation:

let the greater number be x and the smaller number be y.

<u>Now</u><u>,</u>

from first condition,

x = y + 5 --------1

from second condition,

x + y = 21

or, x = 21 - y --------2

from equation 1 and 2,

y + 5 = 21 - y

or, 2y = 16

y = 8

now,

putting the value of y in equation 1

x = 8 + 5

= 13

Flura [38]2 years ago
5 0

Answer:

13.

Step-by-step explanation:

x+x+5=21

2x+5=21

2x=16

x=8

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anastassius [24]

Answer:

6.4y+4.48 Is the answer

5 0
2 years ago
Find the value of x.
kherson [118]

Answer:

46degrees

Step-by-step explanation:

Find the value of x.

Using the circle theorem which states that

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6 0
3 years ago
PLEASE HELP THANK YOU
Svetllana [295]

Answer:

change in the total cost for each book printed = $15

cost to get started (before books are bought) = $1200

Step-by-step explanation:

IF the eqn is y = 15x +1200

where y  represent the total cost of publishing a book (in dollars) and

x  represent the number of copies of the book printed


then cost to get started (before books are bought) can be found by substitute x=0 into the eqn

y = 1200 + 15*0 = $1200


change in the total cost for each book printed will be the difference in total cost at x=0 and x=1

when x=0, y=1200

when x=1, y=1200+15*1=1215

so the change in total cost=$15


7 0
3 years ago
Xavier runs 21 miles in three hours what is his unit rate for the average distance he ran after one hour
kobusy [5.1K]

Answer:

7 mph

Step-by-step explanation:

21/3 = 7 so Xavier runs 7 miles per hour

6 0
3 years ago
Read 2 more answers
The diameter of a circle is 6 cm. About how long is the circumference of the circle?
IgorLugansk [536]

Answer:

The circumference is about 19 centimeters.

Step-by-step explanation:

The formula for finding the circumference of a circle is 2\pi r or simply \pi d.

Now input the values into the formula, keeping in mind that pi is almost 3.14.

\pi *6=18.84

Answer ≈ 19 cm

Hope this helps; have a great day!

5 0
2 years ago
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