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Math and Arithmetic

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Jace Vandervort

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Cards in this guide (16)
Are 1960 Topps Football cards more rare than 1960 Topps Baseball cards

No the 1960 baseball cards are definetly more rarer than the 1960 Football cards 1960 Football cards are more rare.

What type of sensory receptor allows detection of light and vision

photoreceptors

This year the boys' baseball team won 4 times as many games as it lost The team played a total of 40 games How many games did the team win

witch team

The shoe store has twice as many black shoes as it does brown shoes The total number of shoes is 66 How many brown shoes are there

There are 22 brown shoes and 44 black shoes.

To do this, you divide it by three (two thirds of the shoes are black, one third is brown - that's where you get 3 from) and then give the black shoes 2 shares and the brown shoes 1.

Someone please explain this better than me!

Jerry has a total of 23 marbles the marbles are either blue or green he has three more blue marbles than green marbles how many green marbles does he have

a+b=23

b=a+3

a+b

a+(a+3)=23

a+a=23-3

2a=20

a=10

green marbles=10

blue marbles =23-10

=13

Sean earns 4.50 per hour more than his trainee tyrone during one 8 hour day they earn a total of 284 how much does tyrone make per hour

Tryone earns $15.50 per hour

Gina is 9 years younger than her sister Bridgette Two years ago Bridgette was twice as old as Gina was How old is Gina now

Gina is 11 years old right now:

G = Gina's age now

B = Bridgette's age now

eqn. 1

G + 9 = B

eqn. 2

2(G - 2) = B - 2

substituting from eqn. 1 into eqn 2

2(G-2) = G + 9 - 2

simplifying

2G - 4 = G + 7

subtracting G from both sides and adding 4 to both sides

G = 11 (Gina is 11 years old right now)

so

B = 20

two years ago Gina was 9 and Bridgette was 18 - yup Bridget was twice as old as Gina two years ago and is currently (and has been since Gina was born) 9 years older than Gina.

Mike is three times as old as his little sister Mary In 4 years he will be twice as old as Mary How old is Mike

12,4...16,8

Leo works at the Bagel Shop after school and on Saturdays He is paid 4 per hour after school and 5 per hour on Saturday Last week Leo worked a total of 12 hours and made a total of 52.50 How man

7.5

The Cobb family decided to go roller skating for their reunion There were a total of 44 people there and all went roller skating If an adult admission was 5.00 and a child's admission was 3.00 and

26

John has a total of 13 coins in his pocket Of the 13 coins they are all either quarters or dimes The total value of the coins is 2.50 How many quarters does John have in his pocket

8 of them.

Max is 24 years older than his son Liam in two years Liam will be half as old as Max How old is Max now

Equation 1: M = L + 24;

Equation 2: M + 2 = 2(L + 2)

Substitute M: L + 24 + 2 = 2L + 4

Subtract L from each side: 26 = L + 4

Subtract 4 from each side: 22 = L

Max is 46 and Liam is 22; in 2 years Max will be 48 and Liam 24.

What is true about social behavior

Social behavior usually involves communication

Find the weight of Tweedledum and Tweedledee

In this hypothetical problem written by Richard Rusczyk:

Tweedledum says, "The sum of your weight and twice mine is 361 pounds." Tweedledee says, "Contrariwise, the sum of your weight and twice mine is 362 pounds." If they are both correct, how much do Tweedledum and Tweedledee weigh together?

Tweedledum and Tweedledee weigh 120 and 121 pounds respectively.

(NB: Tweedledum and Tweedledee never actually had this converstion, and in the original book their weight remains a mystery...)

He shoe store has twice as many black shoes as it does brown shoes The total number of shoes is 66 How many black shoes are there

44

What kind of behavior is genetically preprogrammed

Instinct

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