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forsale [732]
3 years ago
10

Jillian needs to buy a new laptop for the school year. The list price for the laptop is $479.99. Is it a better

Mathematics
2 answers:
Galina-37 [17]3 years ago
4 0

Answer:

$100 rebate

Step-by-step explanation:

$479.99-$100.00= $379.99 or $479.99-20% =$383.99 so the $100.00 rebate a better offer

inessss [21]3 years ago
3 0

Answer:

Rebate is better

Step-by-step explanation:

You only get a percentage off compared to getting a $100

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A car travels 279 miles in 4 1/2 hours. How many miles would the car travel<br> in 12 hours? *
Liono4ka [1.6K]

Answer:

744 miles in 12 hours.

Step-by-step explanation:

MATH

4 0
2 years ago
Determine the answer to 3 + -5 and explain the steps using a number line
Marizza181 [45]
Adding a positive to a negative, you would look at the number with the greater absolute value, and that number would determine the sign of the sum. 

5 - 3 = 2

Since 5 is bigger, you use that sign

-5 

-2

Answer: -2
6 0
3 years ago
Read 2 more answers
What is the surface area of a cylinder? Express the answer in term of x<br><br> D=8cm h=18cm
Ilia_Sergeevich [38]

Answer:

the surface area is 552.92

Step-by-step explanation:

7 0
3 years ago
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Write the linear equation in slope intercept form from passing through the point with the given slope (-5,-3);slope =-3/5
forsale [732]

Answer:

The answer is y=-3/5x-6

Step-by-step explanation:

y-y=m(x-x1)

y-(-3)=-3/5(x-(-5))

y+3=-3/5x-3

-3 -3

y=-3/5x-6

8 0
2 years ago
A cone has a diameter of 9 inches and a height of 12 inches. Find the volume of the cone to the nearest tenth.
Vanyuwa [196]
1)
The formula for calculating the cone volume is: 
V =  \frac{ \pi *r^2*h}{3}

Data:
V (volume) = ?
h (height) → h = 12 in
d (diagonal) = 9 in , if: d = 2*r , soon: 9 = 2*r → 2r = 9 → r = 9/2 → r = 4.5 in
Use: \pi \approx 3.14

Solving:
V = \frac{ \pi *r^2*h}{3}
V = \frac{ 3.14 *4.5^2*12}{3}
V = \frac{ 3.14 *20.25*12}{3}
V = \frac{763.02}{3}
\boxed{\boxed{V = 254.34\:in^3}}\end{array}}\qquad\quad\checkmark

2)
The circle area formula is: A =  \pi * r^2

Data:
A (area) = ?
d (diagonal) = 19 Km , if: d = 2*r , soon: 19 = 2*r → 2r = 19 → r = 19/2 → r = 9.5 Km
Use: \pi \approx 3.14

Solving:
A = \pi * r^2
A = 3.14*9.5^2
A = 3.14*90.25
\boxed{\boxed{A = 283.385\:Km^2}}\end{array}}\qquad\quad\checkmark


3) False, because it's the volume, the number of cubic units needed to fill a space. 
6 0
3 years ago
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