3 years ago

If the product of some number and 4 is increased by 121, the result is 7 times the number. find the number.

Mathematics

1 answer:

arlik [135]3 years ago

6 0

It will be 40.3 approximately

You might be interested in

A family spends $450 every month on food. If the family’s income is $1,800 each month, what percent of the income is spent on fo

baherus [9]

Answer:

25%

Step-by-step explanation:

10(450/1800)

8 0

2 years ago

Two trains leave the station at the same time, one heading east and the other west. The eastbound train travels at 115 miles per

xz_007 [3.2K]

X= 115x95 this is because when you solve it will give you your answer

6 0

3 years ago

The function f(x)= 9√x gives the speed in feet per second (ft/s) of a free-falling object after it has fallen x feet (ignoring a

Naya [18.7K]

Answer:

45.9ft/s

Step-by-step explanation:

Simply plug your given value into the function

$f(26)=9\sqrt{26} = 45.9 (1.d.p.)$

3 0

3 years ago

A certain forest covers an area of 3100. Suppose that each year this area decreases by 4.75% . What will the area be after 7 yea

e-lub [12.9K]

Answer:

Step-by-step explanation:

This can be represented as exponential decreasing function.

y = a(1 - r)t

a = starting amount

r = rate

t = years

y = 1600(1 - .0725)15

= 1600(.9275)15

= 1600(.32337673)

= 517.40

In 15 years, the forest will shrink in size to 517.40 km2

3 0

3 years ago

Read 2 more answers

The fastest time for completing an obstacle course is 218 seconds. Artest completed the first half of the course in 95 seconds.

Anon25 [30]

Answer:

219 Seconds ; He was 1 second faster

Step-by-step explanation:

Two halfs equal one whole, meaning both of the times added will equal the full time he took:

95+124=219

219 Seconds

He was 1 second faster because:

219-218=1

8 0

3 years ago

If the product of some number and 4 is increased by 121​, the result is 7 times the number. find the number.

If the product of some number and 4 is increased by 121, the result is 7 times the number. find the number.