All Questions ⁺⁰237665 Questions

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A collection of nickels, dimes and pennies has an average value of 7 cents per coin. If a nickel were replaced by five pennies, the average

A collection of nickels, dimes and pennies has an average value of 7 cents per coin. If a nickel were replaced by five pennies, the average would drop to 6 cents per coin. What is the number of dimes in the collection?

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hellospeedmind Sep 30, 2018

+2

2580

2

+394

In the arrangement below, each number is the non-negative difference of the two numbers above it to which it is attached. What is the sum o

In the arrangement below, each number is the non-negative difference of the two numbers above it to which it is attached. What is the sum of the four greatest distinct possible values for z?
read more ..

hellospeedmind Sep 30, 2018

0

1028

2

+28

HELP ME PLZ

English has letters that can be vowels. This includes Y, which can be either a consonant or a vowel; for this problem, we'll consider Y a vowel.
The other English letters are always consonants.
How many two-letter "words" can read more ..

Pungce Sep 30, 2018

+2

1064

1

+394

Squares: Answer ASAP with explanation

Some perfect squares (such as 121) have a digit sum that is equal to the square of the digit sum of their square root , and .
What is the smallest perfect square greater than 100 that does not have this property? read more ..

hellospeedmind Sep 30, 2018

0

849

1

Help!

The fifth term of an arithmetic sequence is 9 and the 32nd term is -84. What is the 23rd term?

Guest Sep 30, 2018

0

2207

1

+1246

Please find the PERIMETER, not the AREA!

The square shown is divided into 4 congruent rectangles. If the perimeter of the square is 144 units, what is the perimeter of one of the four congruent rectangles? read more ..

Lightning Sep 30, 2018

0

696

1

+8

help please asap

pls help how do i solve this

nellycrane Sep 30, 2018

0

1202

3

+1246

Length

The square shown is divided into 4 congruent rectangles. If the perimeter of the square is 144 units, what is the perimeter of one of the four congruent rectangles?

read more ..

Lightning Sep 30, 2018

0

1151

1

+1246

Traingles

Triangle ABC is isosceles with angle B congruent to angle C. The measure of angle C is four times the measure of angle A. What is the number of degrees in the measure of angle B?

Lightning Sep 30, 2018

0

805

1

+1246

Help!

In the diagram below, WY = 9, XZ = 7, [AWX] = 30, and [AYZ] = 20. Find [AXY].

Lightning Sep 30, 2018

0

599

0

+845

Rational function, stationary point

https://snag.gy/Bi1gNy.jpg
please help with question 8C

YEEEEEET Sep 30, 2018

Sep 29, 2018

0

727

1

Can somebody help me with a solution? Thank you so much

While staying in a 15-story hotel, Polya plays the following game. She enters an elevator on the 6th floor. She flips a fair coin five times to determine her next five stops. Each time she flips heads, she goes up one floor. Each time she flips tails, she read more ..

Guest Sep 29, 2018

0

949

1

+8

complex numbers

nellycrane Sep 29, 2018

0

932

1

+642

algebra

how do i solve this?

cerenetie Sep 29, 2018

0

884

1

+642

binomial help

this is really confusing

cerenetie Sep 29, 2018

0

902

1

+642

binomial theorem

pls help thank you

cerenetie Sep 29, 2018

0

792

3

+642

help me pls

cerenetie Sep 29, 2018

0

497

1

Deferred Retirement Acct.

A business manager started his retirement account when he was 30. He regularly deposited $1,000 per month at an average rate of 5% compounded monthly. After 15 years of this, he was transferred to Europe for a period of 5 years in which he was unable to read more ..

Guest Sep 29, 2018

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