MATHEMATICS
MIDDLE SCHOOL

Answer:

50 times 10 = 500 pennies

Answer: There are 50 stacks, with 10 pennies in each stack. 50*10=500, therefore, she has 500 pennies. You did this by multiplying the number of stacks, by the number of pennies in each stack.

MIDDLE SCHOOL

Simplest from for 0.26

As a decimal, it can't be written any simpler.

As a fraction, it's 26/100 = 13/50 .

As a fraction, it's 26/100 = 13/50 .

26/100 = 13/50

Hope i helped. Have a nice day.

Hope i helped. Have a nice day.

HIGH SCHOOL

What is the 5th term of an arithmetic sequence if t2 = -5 and t6 = 7

An=Asub1+d(n-1)

Asub5= -5+½(4)

=-5+7

=2

Asub5= -5+½(4)

=-5+7

=2

HIGH SCHOOL

Karens batting average was 0.444. She was at bat 45 times. How many hitd did she get?

Average of 0,444 in 45 battings can be wirtten as:

45 * 44,4% = 19,98

After rounding it up it'll give us 20 and that's exactly how many hits Karen got.

45 * 44,4% = 19,98

After rounding it up it'll give us 20 and that's exactly how many hits Karen got.

MIDDLE SCHOOL

Find the reciprocal of 19/13

Answer:

13/19

Step-by-step explanation:

To find the reciprocal, flip the number.

The reciprocal of 19/13 is 13/19

~

Answer:

13/19

Step-by-step explanation:

to find the reciprocal of a fraction. To find out the reciprocal, the easiest method is that to write denominator in numerator's place and vice verse. Problems will help to clear this concept

MIDDLE SCHOOL

I’M LOSING TIME!!!!!! you are trying to decide which cell phone plan to purchase. Plan A chargeres $40 for a new phone and $20 a month for usage. Plan B provides the phone for free, but has a fee of $30 a month for usage.

Use the substitution method to determine when the two plans will cost the same.

Answer:

At the 4 month, the cost will be the same

Step-by-step explanation:

suppose x is the number of month.

Plan A= 40+20x

Plan B= 30x

Both plans cost the same;

40+20x =30 x

40=30x-20x

40/10=x

4=x

At the 4 month, the cost will be the same.

HIGH SCHOOL

Bridget has swimming lessons every 5th day and diving lessons every third day if she had swimming lesson and a diving lesson on May 5th when will be the next date in which she has both swimming and diving lessons

It'd be May 20th, because you have to the number of days between each time they overlap has to be a number divisible by both 3 and 5, and 15 is the smallest number divisible by both 5 and 3. You add 15 to 5, and get 20, so it's May 20th.

HIGH SCHOOL

Solve (√7-√3)^2

A.) 10-2√21

B.) 4-2√21

C. 4

D. -4

The answer is A

10-2sqrt21

10-2sqrt21

MIDDLE SCHOOL

Find the largest integer that will divide all the terms 9x and 45

Answer:

9 will be the biggest

Step-by-step explanation:It divides into 9x AND 45

HIGH SCHOOL

Come up with a real-life situation and show how it might be modeled algebraically with a system of equations (or inequalities). Be sure to include: A few sentences explaining the situation.

Your variables of choice and what each represents.

How you would set up and solve algebraically.

You are running a concession stand at a tennis game. You are selling hot dog and sodas. Each hot dog costs $1.50 and each soda costs $0.50. At the end of the night, you made a total of $78.50. You sold a total of 87 hot dog and sodas combined. You must report the number of hot dog sold and the number of sodas sold. How many hot dog was sold and how many sodas were sold? 1. Let's start by identifying the important information: hot dog cost $1.50Sodas cost $0.50Made a total of $78.50Sold 87 hot dog and sodas combined2. Define your variables. Ask yourself, "What am I trying to solve for? What don't I know? In this problem, I don't know how many hot dogs or sodas were sold. So this is what each variable will stand for. (Usually, the question at the end will give you this information).Let x = the number of hot dogs sold y = the number of sodas sold3. Write two equations. One equation will be related to the price and one equation will be related to the quantity (or number) of hot dogs and sodas sold.1.50x + 0.50y = 78.50 (Equation related to cost) x + y = 87 (Equation related to the number sold)4. Solve! We can choose any method that we like to solve the system of equations. I am going to choose the substitution method since I can easily solve the 2nd equation for y.5. Think about what this solution means.x is the number of hot dogs and x = 35. That means that 35 hot dogs were sold.y is the number of sodas and y = 52. That means that 52 sodas were sold.6. Write your answer in a complete sentence.35 hot dogs were sold and 52 sodas were sold.7. Check your work by substituting.1.50x + 0.50y = 78.50 1.50(35) + 0.50(52) = 78.50 52.50 + 26 = 78.50 AND x+ y = 87

35 + 52 = 87

Since both equations check properly, we know that our answers are correct!