MATHEMATICS HIGH SCHOOL

John has $80. Every week, he spends $7.Create an equation that represents How much money, m, in dollars, will he have after the fourth week? Enter the equation and the answer on separate lines. (Will give brainliest)

Answers

Answer 1

Answer:

Answer:

7x+80

Step-by-step explanation:

x represents the number of weeks

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GEOMETRY. PLEASE CHECK MY ANSWER! THANKS.Mario’s company makes unusually shaped imitation gemstones. One gemstone had 12 faces and 10 vertices. How many edges did the gemstone have?

A. 23 edges
B. 22 edges
C. 25 edges
D. 20 edges****

Answers

I'd solved it in the pic, and the answer is D. 20

This is simple.
we should have a knowledge of the Euler's Theorem/Euler's Formula
F+V=E+2
Basically states that:
# of Faces+ # of Vertices= # of Edges+2
12 + 10 = E + 2
(-2) + 22 = E + 2 (-2)
20 = E

Yep, The answer is D. 20 edges

Find the distance between the pair of parallel lines, y = x-11 & y = x-7

Answers

$k:\ y = x-11\ \ \ \Leftrightarrow\ \ \ x-y-11=0\n and\n l:\ y = x-7\ \ \ \Leftrightarrow\ \ \ x-y-7=0\n\nthe\ distance:\n\n d(k;l)= \frac{\big{|-11-(-7)|}}{\big{ √(1^2+1^2) }} =\frac{\big{|-11+7|}}{\big{ √(2) }} =\frac{\big{|-4|}}{\big{ √(2) }} =\frac{\big{4\cdot √(2) }}{\big{ √(2)\cdot √(2) }} =\frac{\big{4 √(2) }}{\big{2 }} =2 √(2)$

$Given \ the \ equations \ of \ two \ non-vertical \ parallel \ lines:\n\ny = mx+b_1\ny = mx+b_2\n\nthe \ distance \ between \ them \ can \ be \ expressed \ as : \n\nd= (|b_(1)-b_(2)|)/( √( m^2+1) )$

$y = x-11 \n y = x-7 \n\n\nd= (| -11- (-7)|)/( √( 1^2+1) ) =(| -11+7|)/( √( 1+1) ) = (|-4|)/( √(2) ) = (4)/( √(2) )\cdot (√(2))/(√(2))=(4√(2))/(2)=2√(2)$

Harriet wants to buy items worth $248.50. She is using a store coupon for 25 percent off her purchases. She has to pay 5 percent sales tax. Calculate the total cost of the items.

Answers

Starting price is : $248.50
Price with 25% off :
$248.50 x ( 1 - 0.25 ) = $248.50 x 0.75 = $186.375
After that she has to pay 5 % sales tax:
$186.375 x 1.05 = $195.70
Answer:
The total cost of the items is $195.70.

Answer: $195.70

Step-by-step explanation:

Bubba can mow a field in 8 hours. If Skeeter helps, they both can do it together in 3 hours. How long would it take Skeeter to mow the field by himself?

Answers

When they work together, they do 1/3 of the job in one hour.

   (Bubba) + (Skeeter) = 1/3 job/hour

Subtract 'Bubba'
from each side:     Skeeter = (1/3 job/hour) - (Bubba)

Bubba, working alone, does 1/8 of the job in one hour.

      Skeeter = (1/3 job/hour) - (1/8 job/hour)

Can you subtract 1/8 from 1/3 ?

Before you can subtract, you'll need a common denominator.
I've got a nice one here . . . 24 .

   1/3 = 8/24
   1/8 = 3/24

   Skeeter = (1/3 job/hour) - (1/8 job/hour)

      = (8/24 job/hour) - (3/24 job/hour)

=    5/24 job/hour .

Skeeter mows at the rate of 5/24 field/hour.

The other way to look at that is: 24/5 hour/field = 4.8 hours .

Check:

   Bubba:   1/8     field per hour = 0.125
   Skeeter: 1/4.8 field per hour = 0.208333...

   Together: (0.125 + 0.208333)

   = 0.333... field per hour

   = 3 hours/field . yay!

YO PLZ HELP ME W DIS ASAP!!!

Answers

Answer:

-6 < y < ∞

Step-by-step explanation:

The range is the value of the output, in this case the value of y

The value is from -6 not including -6 to infinity

-6 < y < ∞

Answer:

C. from -6 to infinity

Step-by-step explanation:

The range is the set of the y-coordinates of the points of the function.

The lowest value of y is -6 or just greater than -6.

All values greater than y are also part of the range.

Answer: Choice C. from -6 or just greater than -6 to infinity

What is the equation of the line, in general form, that passes through the point (1, 1) and has a y-intercept of 2. possible answers: x - y + 2 = 0
x + y - 2 = 0
x - y - 2 = 0

Answers

To solve this problem we need to know the form of the general equation of the line. That is, y= mx+b where m is the slope and b is the intercept. We are already given the y-intercept (2) our next step is to fin the slope. Substitute the point give (1,1) in the equation y= mx+2 and then solve for m. The slope is then -6. The final equation is y = -x+2 or x + y - 2 = 0

the answer seems to be x+y-2=0

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PLZ HELP, ASAP! A hotel offers two activity pages. One costs $192 and includes 3 hours of horseback riding and 2 hours of paasailing. The second costs $213 and includes 2 hours of horsebac riding and 3 hours of parasailing. What is the cost for 1 hour of each activity? A. Parasailing: $39; Horseback Riding: $48 B. Parasailing: $51; Horseback Riding: $30 C. Parasailing: $27; Horseback Riding: $46 D. Parasailing: $63; Horseback Riding: $24

Does someone know how to do these two? I really can’t fail summer school and ALL work is due tomorrow and I have like 16 missing assignments