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Anarel [89]
2 years ago
15

Kevin is 4 times as old as Daniel and Kevin is also 6 years older than Daniel

Mathematics
1 answer:
Brut [27]2 years ago
5 0

Step-by-step explanation:

let kevein be x and daniel be y

x=4y (equation i)

x=6+y(equationii)

putting the value of x in equationii

4y=6+y

3x=6

x=2

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How do you do this problem?
vazorg [7]

Production by Mexico is the same percentage (3%) of world production for the years of interest, so the relation is

... (mexico production) = 0.03 × (world production)

Then, dividing by 0.03, we get

... (mexico production)/0.03 = (world production)

The change in world production is the difference between the amounts for the two years, so is

... (production increase) = (2007 world production) - (2000 world production)

... = 24/0.03 - 18/0.03 = (24 - 18)/0.03

... = 6/0.03 = 200 . . . . million metric tons

The appropriate choice is (D) 200.

5 0
3 years ago
A computer programmer worked for 5 hours and earned $25, which is a rate of $_ Per hour
ololo11 [35]

Answer:

They earned 5 dollars per hour

Step-by-step explanation:

Take the amount earned and divide by the number of hours

25/5

5

They earned 5 dollars per hour

5 0
3 years ago
The perimeter of a rectangular pool is 414 meters. The length is 7 meters more than 4 times the width find the length and width
Marina86 [1]

Answer:

The length of rectangular pool is 167 meters and the width is 40 meters

Step-by-step explanation:

Let

x ----> the length of rectangular pool

y ----> the width of rectangular pool

we know that

The perimeter of rectangle (rectangular pool) is equal to

P=2(x+y)

we have

P=414\ m

so

414=2(x+y)

simplify

207=x+y ----> equation A

x=4y+7 ----> equation B

solve the system by substitution

substitute equation B in equation A

207=4y+7+y

solve for y

207-7=4y+y

200=5y

y=40\ m

Find the value of x

x=4y+7

x=4(40)+7=167\ m

therefore

The length of rectangular pool is 167 meters and the width is 40 meters

8 0
4 years ago
B - 1/8= 3 1/2 <br><br><br> what’s b equal
svlad2 [7]
In fraction
b= 29/8
decimal
b= 3.625
another’s fraction
b= 3 5/8
4 0
3 years ago
3. (05.02 LC)
NeTakaya
The answer of this is 0 8 inches
7 0
2 years ago
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