MATHEMATICS HIGH SCHOOL

Call Wireless phone company charges $0.50 for the first call you make and $0.10 for each additional minute. The cost of a phone call can be expressed by the formula C = 0.50 + 0.10(m – 1), where C is the total cost in dollars and m is the number of minutes that you talk. If the bill for your phone call was $1.90, how long did you talk?.

Answers

Answer 1
Answer:

If the bill for your phone call was $1.90, we talked for 15 minutes. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.

Answer 2
Answer:

Answer:

15 minutes

Step-by-step explanation:

Here the given function that shows the cost( in dollars ) of phone call after taking m minutes,

If the bill is $ 1.90,

That is, C = 1.90

From equation (1),

   ( Subtracting 0.50 on both sides ),

                 ( Dividing both sides by 0.10 ),

                    ( Adding 1 on both sides ),

Hence, 15 minutes were taken for talking.


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MIDDLE SCHOOL

Mabel works for 5 hours each weekday and 6 hours total on the weekends. She earns $6 an hour on weekdays and $8 an hour on weekends. How much money does she earn each week?

Answers

$246
5 hours x 5 days x $6 =150
6 hours x 2 days x $8 = 96
She earns $246 each week.

Hope this helps :)
HIGH SCHOOL

A triangular pyramid has a slant height of 0.75 foot. The equilateral triangular base has a perimeter of 1.2 feet and an area of about 0.07 square foot. Find the approximate surface area.

Answers

The formula for the surface area of a triangle pyramid is shown below:
SA = A + (3/2)Bh 
Where SA for surface area, A=base are, b=base and h=height.
We can solve for surface are since all values needed are given.
SA = (0.07) + (3/2)*1.2*0.75
SA=1.42 square foot
Therefore, the surface area is 1.42 square foot.

Answer:

The surface area is 1.42 square feet

Step-by-step explanation:

EAsports

HIGH SCHOOL

Alina is able to swim at a rate of about 2.5 miles per hour. Talia is able to swim at a rate of 1.8 meters per second. Which statement comparing the two swimmers is accurate?

Answers

Talia is faster as she can swim 6480 meters per hour which equals 4.02... miles so Talia can out pace the 2.5 mile per hour Alina


Answer:  

Talia swims about 1.5 miles per hour faster than Alina.

Step-by-step explanation:

Since, 1 miles = 1609 meter and 1 hour = 60 seconds,

⇒  

⇒  

Here, The speed of Alina = 2.5 miles per hour = 2.5 × 1609/3600

And, the speed of Talia = 1.8 meter per second,

Since 1.8  > 1.11736111

⇒ Talia swims faster than Alina.

And, the difference between their speeds = 1.8 - 1.11736111 = 0.68263889 meter per seconds

= 0.68263889× 3600/1609 miles per hour

= 1.52734618 miles per hour ≈ 1.5 miles per hour ,

⇒ Fourth option is correct.

HIGH SCHOOL

Write the expression in complete factored form: x²-8x+xy-8y

Answers

Group like terms and factor

group the ones with 8 together and the rest apart

(x²+xy)+(-8x-8y)
factor
x(x+y)+(-8)(x+y)
factor out (x+y)
(x+y)(x-8)
MIDDLE SCHOOL

What is the relationship between the sides of a right triangle?

Answers

Answer:

⇒  is the required relationship.

Step-by-step explanation:

Let us assume, the given right angled triangle is ΔPQR.

Here. PQ = Perpendicular of the triangle.

QR = Base of the triangle.

PR = Hypotenuse of the triangle.

Now, PYTHAGORAS THEOREM states:

In a right-angled triangle, the square of the hypotenuse side is equal to the sum of squares of the other two sides“

Hence in ΔPQR:  

And the above expression is the required relationship between the sides of a right triangle.

MIDDLE SCHOOL

Round each number to the nearest thousand and add 29,847+31,866+49,230

Answers

111,000 because you do 30000+32000+49000.

MIDDLE SCHOOL

The shoe store’s clerks are paid on commission. If the clerk receives a 12% commission on total purchase amounts before tax is applied, how much would the commission be for Isaac’s purchase with and without a coupon? (2 points) 60 points please help quick

Answers

his commission is: $

< p> 7.11

since ---> 59.25 is the value be fore adding tax : then --->

his commission is 12% of 59.25

i.e 12/100 x 59.25 =  7.11.

T^T

Answer:

The total before the tax was 59.25 so you multiply that by the clerks commision rate. You get 7.11 as your total.

Step-by-step explanation:

HIGH SCHOOL

Two lines that are perpendicular to each other form 4 right angles. true or false?

Answers

Two lines that are perpendicular to each other forms two right angles. answer is False
This statement is true (perpendicular means they form right angles when they intersect).
MIDDLE SCHOOL

What is the basic ratio for 36:84

Answers

Answer

3 : 7


Explanation

A ratio is a fraction.

36 : 84  ⇒ 36/84

Simply this  fraction by dividing numerator and denominator by 4

(36 ÷4) / (84 ÷ 4) = 9/21

Divide by 3 on both numerator and denominator.

(9 ÷ 3) / (21 ÷ 3) = 3/7

3/7 = 3 : 7

A basic ratio would be 3:7 because it is in the simplest form. GCF:12. 36 divided by 12 equals 3. 84 divided by 12 equals 7. I hope this helped.
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