1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Pani-rosa [81]
3 years ago
10

Lucy wants to buy a new laptop for school. She has a $25 off coupon, but the store is also having a sale for 15%. Unfortunately

she can not get both discounts and must pick one. If the laptop costs $200, which one should she use?
Mathematics
1 answer:
irga5000 [103]3 years ago
7 0

Answer:

15% discount

Step-by-step explanation:

200 x .15 is 30 which means that you save 5 dollars more when using that discount rather than just 25.

You might be interested in
Write the equation of the line perpendicular to y=5/6x+2/3 that passes through the point (-3,5)
Anton [14]

Answer:

y=-6/5x+7/5

Step-by-step explanation:

1. Take opposite reciprocal of slope from 5/6 -> to -6/5

2. Plug in points with the new slope into point slope form and solve for slope intercept form. y=-6/5x+7/5

5 0
3 years ago
Find the values of p and q such that 4x^2+12x=4(x+p)^2-q
-Dominant- [34]

Answer:

p = 1.5 and q = 9

Step-by-step explanation:

Expand the right side then compare the coefficients of like terms on both sides, that is

4(x + p)² - q ← expand (x + p)² using FOIL

= 4(x² + 2px + p²) - q ← distribute parenthesis

= 4x² + 8px + 4p² - q

Comparing coefficients of like terms on both sides

8p = 12 ( coefficients of x- terms ) ← divide both sides by 8

p = 1.5

4p² - q = 0 ( constant terms ), that is

4(1.5)² - q = 0

9 - q = 0 ( subtract 9 from both sides )

- q = - 9 ( multiply both sides by - 1 )

q = 9

7 0
3 years ago
Roselyn is driving to visit her family, which live 150 150150 kilometers away. Her average speed is 60 6060 kilometers per hour.
Sauron [17]

Answer:

She can go 120 km before she runs out of fuel

It will take 2 hours.

Step-by-step explanation:

150 km is the distance

60 km/ h is the speed

The gas tank is 20 liters

We can go 6 km per liter

Fuel costs .60 dollars per liter

We need to determine how far she can go on a tank of gas

20 liters * 6 km / liter = 120 km

She can go 120 km before she runs out of fuel

120 km  = 60 km/ h  *  x hours

Divide each side by 60

120/60 = x

2 hours

8 0
3 years ago
The model shown was used to find the product of two fractions: A rectangle divided into nine columns of equal size and 4 rows of
Valentin [98]

The equation that represents the array (rectangles and area) multiplication model that sows two grey shaded columns of length one ninth each and three rows with dots of width one fourth each is option <em>a</em>

a) The equation with fractions two ninths times three fourths is equal to six thirty sixths

\dfrac{2}{9} \times \dfrac{3}{4} = \dfrac{6}{36}

<h3>What is an array (area) multiplication model?</h3>

An array representation of a multiplication is a rectangular visual order of positioning of rows and columns that indicates the terms of a multiplication equation.

Please find attached the area model to multiply the fractions

The terms of the equation represented by the model are indicated by the two columns of length one ninth each shaded grey and the three rows of width one fourth each covered with dots, such that the equation can be presented as follows;

\left(\dfrac{1}{9} +\dfrac{1}{9}\right) \times \left(\dfrac{1}{4} +\dfrac{1}{4} + \dfrac{1}{4} \right) = \dfrac{2}{9} \times \dfrac{3}{4} =\dfrac{6}{36}

The equation that the model represents is therefore;

  • The equation with fractions two ninths times three fourths is equal to six thirty sixths

Learn more about multiplication models here:

brainly.com/question/24586779

#SPJ1

8 0
1 year ago
Suppose that y varies directly with x<br> and y = 10 when x = 20. What is y<br> when x = 15?
tresset_1 [31]

Answer: y = 7.5

Step-by-step explanation:

Suppose that y varies directly with x

That is, y∝x

Convert y∝x to a full equation by introducing a constant k to the right hand side.

Therefore, y = kx

Given that y = 10 and x = 20

Substitute y and x in the equation above. We have;

10 = k(20)

10 = 20k

20k = 10

k = 10/20

k = 0.5

Since k = 0.5, the equation y = kx becomes y = 0.5x

Now, to find y if x = 15, substitute x in equation y = 0.5x

Therefore, y = 0.5(15)

y = 7.5

5 0
3 years ago
Other questions:
  • ana hikes at a constant speed.She travels 6 miles in 2 hours. Find her speed in miles per hour.Use it to write an equation for t
    8·1 answer
  • Benny opened a bank account. He deposited $92.50 into his account every month for 10 months. He used $36.50 every month to pay f
    5·1 answer
  • I don't understand this. help please?
    10·1 answer
  • Show work?<br> |5x+10|=-7
    7·1 answer
  • What is the volume of the figure ? <br> A.25.1cm <br> B.50.3cm<br> C.100.5cm<br> D.201.1cm
    12·2 answers
  • A jacket is reduced by 40% in a sale to £36 what wad its original price
    7·1 answer
  • If the zeroes of the quadratic polynomial x 2  + (a + 1)x + b are 2 and –3, then
    14·1 answer
  • A study of the impact of executive networking on firm performance measured firm performance as annual return on equity​ (ROE), r
    12·1 answer
  • On a map 1 inch = 50 miles. If two cities are 3 1/2 inches apart, how many miles are they apart?
    6·1 answer
  • Meg spent ninety minutes working out at Anytime Fitness.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!