1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Y_Kistochka [10]
3 years ago
14

The product of 5 and a number, decreased by 9, is 306. What is the number?

Mathematics
2 answers:
densk [106]3 years ago
7 0

Answer:

The number is 63

Step-by-step explanation:

Product means multiply

5n

Decreased by 9

5n-9

Is means equals

5n-9 = 306

Solve

5n-9 = 306

Add 9 to each side

5n-9+9 = 3-6+9

5n = 315

Divide by 5

5n/5 = 315/5

n = 63

steposvetlana [31]3 years ago
5 0

Step-by-step explanation:

bsbdjdkksnsbsvsvns NC Ricans Roxane Isiah

You might be interested in
A circle fountain has a radius of 9.4 feet . What's the fountains diamiter
boyakko [2]
<h3>Answer:</h3>

18.8 feet

<h3>Step-by-step explanation:</h3>

We are given;

Radius of the fountain is 9.4 feet

We are required to determine the diameter of the fountains

We need to know that the diameter of a circle is twice the radius of the circle.

That is;

Diameter = 2r

Therefore;

Diameter of the fountain = 2 × 9.4 feet

                                         = 18.8 feet

Thus, the diameter of the fountain is 18.8 ft

3 0
3 years ago
Mercury is a naturally occurring metal that can be harmful to humans. The current recommendation is for humans to take in no mor
kirill [66]

Answer:

A.) A person weights 80 kg can consume Haddock fish = 149 grams

B.) A person weights 80 kg can consume Swordfish fish = 8 grams

C.) A person weights 80 kg can consume Tuna fish = 23 grams

D.) A person weights 80 kg can consume Snapper fish = 50 grams

Step-by-step explanation:

Given - Mercury is a naturally occurring metal that can be harmful to humans. The current recommendation is for humans to take in no more than 0.1 microgram for every kilogram of their weight per day. Fish generally carry high levels of mercury, although certain fish have higher mercury content than others. Fish, however, are healthy sources of many other nutrients, so nutritionists recommend keeping them in the human diet. The figure below shows the average mercury content of several types of fish.

To find - If a person weighs 82 kg, how much of each fish can they safely consume? round to the nearest gram.

A.Haddock

B.Swordfish

C.Tuna

D.Snapper​

Proof -

Firstly, determine how many micro grams of mercury a person can consume who weighs 82 kilograms.

⇒82 × 0.1 =  8.2 micro grams.

Now,

a.)

For Haddock fish-

It consumes 0.055 micro grams of mercury

So,

A person can consume fish = 8.2 ÷ 0.055

                                              = 149.09 ≈ 149 grams

So,

A person weights 80 kg can consume Haddock fish = 149 grams

b.)

For Swordfish fish-

It consumes 0.995 micro grams of mercury

So,

A person can consume fish = 8.2 ÷ 0.995

                                              = 8.24 ≈ 8 grams

So,

A person weights 80 kg can consume Swordfish fish = 8 grams

c.)

For Tuna fish-

It consumes 0.350 micro grams of mercury

So,

A person can consume fish = 8.2 ÷ 0.350

                                              = 23.43 ≈ 23 grams

So,

A person weights 80 kg can consume Tuna fish = 23 grams

d.)

For Snapper fish-

It consumes 0.165 micro grams of mercury

So,

A person can consume fish = 8.2 ÷ 0.165

                                              = 49.697 ≈ 50 grams

So,

A person weights 80 kg can consume Snapper fish = 50 grams

6 0
3 years ago
charity is four times as old as her daughter. she is also six years younger than her husband. The sum of their ages ten years to
Pachacha [2.7K]

Answer:

36years

Step-by-step explanation:

Let charity present age be x

Charity daughter present age be y

Charity husband present age be z

If the sum of their ages ten years to come is 117, then;

10+x+10+y+10+z = 117

30+x+y+z = 117

x+y+z = 87 ... 1

If charity is four times as old as her daughter, then;

x = 4y

y = x/4 ... 2

If she is also six years younger than her husband, then;

x = z- 6

z = x+6 .. 3

Substitute 2 and 3 into 1;

x + x/4 + (x+6) = 87

Multiply through by 4

4x + x + 4(x+6) = 4(87)

5x+4x+24 = 348

9x = 348 - 24

9x = 324

x = 324/9

x = 36

hence Charity is 36years old today

5 0
3 years ago
What is the range?<br> 0,10,-24,-5,-5,3,3,-8,10
Nuetrik [128]

Answer:

-14

Step-by-step explanation:

Range is the difference between the lowest and highest values.

6 0
3 years ago
I need the answers for 3, 4, 5, and 6! thanks!!
Makovka662 [10]
Number 3 =32 us cups
4 0
3 years ago
Other questions:
  • a jet travels 520 miles in 5 hours at this rate how far could the jet fly in 11 hours what is the rate of speed of the jet
    6·1 answer
  • The difference of m and 3 is greater than or equal to 10
    11·1 answer
  • A certain drug is made from only two ingredients: compound a and compound
    12·2 answers
  • 7200 plus what equals 8342
    12·1 answer
  • DO NOT KNOW HOW TO SOLVE HELP ASAP
    11·1 answer
  • Help with homework ​
    5·1 answer
  • Mrs. Williams put $500 into a retirement account that earns 4% interest. How long will it take for there to be $3,500?
    10·1 answer
  • Rauol measured the height of 12 different plants in his garden in April. He measured them again in June. What is the difference
    10·1 answer
  • Solve for x.<br> −4≥10−7x<br><br> x≤2<br> x≥−2<br> x≤−2<br> x≥2
    8·1 answer
  • Write an equation representing the relationship of 10:20 shown in the graph ​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!