3 years ago

An older person is 7 years older than five times the age of a younger person. The sum of their ages is 37. Find their ages.

Mathematics

1 answer:

OLga [1]3 years ago

6 0

Answer:

older person: 32 yrs younger person: 5 yrs

Step-by-step explanation:

older person age: o

younger person age: y

o=5y+7

o+y=37

Solve with substitution:

5y+7+y=37

6y+7=37

6y=30

y=5

Plug back in:

o+5=37

o=32

You might be interested in

For every 140 feet that Kelly rides on her bicycle, the wheels turn 20 times. About how many times do the wheels turn in 5 miles

Mars2501 [29]

Answer: The wheels turn about 3771 times in 5 miles.

Step-by-step explanation:

Given, Kelly rides on her bicycle such that the number of times wheels turn for every 140 feet = 20

Turns for every feet = $\dfrac{20}{140}=\dfrac{1}{7}$ ...(i)

To find : Number of times wheels turn in 5 miles.

Since , 1 mile = 5,280 feet

Then, 5 miles = 5 x (5,280 feet) = 26,400 feet

Now , Number of times the wheels turn in 26,400 feet = 26400 x (Turns for every feet)

$26400\times\dfrac{1}{7}=3771.42857143\approx3771$ [From (i)

Hence, the wheels turn about 3771 times in 5 miles.

5 0

3 years ago

In a sample of 1110 U.S. adults, 172 think that most celebrities are good role models. two U.S. adults are selected from this s

marshall27 [118]

Answer: 123

Step-by-step explanation:

5 0

2 years ago

What is the uniqueness of comeplex integration from line integaration?

ella [17]

In normal line integration, from what I understand, you are measuring the area underneath (,)
f
(
x
,
y
)
along a curve in the -
x
-
y
plane from point
a
to point
b
.

3 0

3 years ago

How to factor this expression: x^2-9?

Lena [83]

Answer:

(x+3)(x-3)

Step-by-step explanation:

rewrite "9" as 3^2

so it is x^2-3^2

You use the difference of squares: a^2-b^2=(a+b)(a-b)

apply it: (x+3)(x-3)

7 0

2 years ago

HELP PLEASE evaluating piecewise Function

Leno4ka [110]

Answer:

g(0) = 5

Step-by-step explanation:

We will use the first equation, since 0 < 3.

8 0

4 years ago