CHEMISTRY MIDDLE SCHOOL

Please help!! #1. Tom pays 5 cents per minute to use his cell phone. Write an expression for the cost in cents of using his cell phone for m minutes.


#2. Clint runs c miles each week. Brenda runs 2 miles more each week than Clint. Write an expression for the number of miles Brenda runs each week

Answers

Answer 1
Answer:

Answer:

1) c = 5cents/min × m

2) x = (2+c) miles

Explanation:

1) Cost paid per minute = 5 cents

Or we can also write it as cost per minute = 5 cents/min

Suppose Tom uses phone for m minutes, then cost (c)will be given an expression :

c = 5cents/min × m

2) Distance covered by Clint in a week = c  miles

Distance covered by Brenda =  x

Brenda runs 2 miles more each week than Clint.

x = (2+c) miles

Answer 2
Answer: 1.
cost in cents

cost = 5m



2.
miles = c + 2

Related Questions

MIDDLE SCHOOL

The chemical formula for a covalently bonded group of atoms is called a

Answers

"Polyatomic ion" would be the covalently bonded group of atoms.

  • The groupings of atoms that are covalently connected and have a favorable or unfavorable (+ or -) charge as nothing more than a result of the establishment of such an ionic bond between another ionic particle, are considered as Polyatomic ions.
  • It is indeed a charged particle made up of multiple atoms that are linked around each other.

For example,

→ Nitrate ion ()

Learn more:

brainly.com/question/11080407

Answer:

A charged group of covalently bonded atoms is called a(n)... A covalent bond between two atoms produced by sharing two pairs of electrons is called a(n)... The simplest collection of atoms from which the formula of an ionic compound can be established is called a(n).

MIDDLE SCHOOL

Which is an advantage if sexual reproduction over asexuals reproduction A. Increased number of organisms and decreased genetic variation

B. Increased genetic variation

C. Doesn’t require an organism to find a mate

D. Decreased genetic variation

E. Decreased genetic variation and decreased number of organisms

Answers

C. doesn't require a mate to reproduce

Answer:

B

Explanation:

HIGH SCHOOL

Which of these is a physical property? A) ability to burn a piece pf paper B) pure sodium reacts violently with water C) the boiling point of water is 100° C D) Helium does not tend to react with anything

Answers

Boiling of water at 100°C  is a physical change as there is no change in the chemical composition of water only it's state changes.

What are physical changes?

Physical changes are defined as changes  which affect only the form of a substance but not it's chemical composition. They are used to separate mixtures in to chemical components  but cannot be used to separate compounds to simpler compounds.

Physical changes are always reversible using physical means  and involve a change in the physical properties.Examples of physical changes include melting,boiling , change in texture, size,color,volume and density.Magnetism, crystallization, formation of alloys  are all reversible and hence physical changes.

They involve only rearrangement of atoms and are often characterized to be changes which are reversible.

Learn more about physical changes,here:

brainly.com/question/17931044

#SPJ5

It's C the boling point to water is 100° C

COLLEGE

A solution with a ph of 4 has _________ the concentration of h+ present compared to a solution with a ph of 5.

Answers

A solution with a pH of 4 has ten times the concentration of H⁺ present compared to a solution with a pH of 5.
pH is a numeric scale for the acidity or basicity of an aqueous solution. It is  the negative of the base 10 logarithm of the molar concentration of hydrogen ions.
[H⁺] = 10∧-pH.
pH = 4 → [H⁺]₁ = 10⁻⁴ M = 0,0001 M.
pH = 5 → [H⁺]₂ = 10⁻⁵ M = 0,00001 M.
[H⁺]₁ / [H⁺]₂ = 0,0001 M / 0,00001 M.
[H⁺]₁ / [H⁺]₂ = 10.
Random Questions