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
saw5 [17]
2 years ago
14

kaitlin received a $70 gift card for a coffee store. she used it in buying some coffee that cost $7.69 per pound. after buying t

he coffee, she had $39.24 left on her card. how many pounds of coffee did she buy?
Mathematics
1 answer:
aksik [14]2 years ago
8 0
Kaitlin bought 4 pounds of coffee.

70-39.24=30.76
30.76 ÷ 7.69= 4
You might be interested in
What is 3.248 repeating as a simplified fraction?
Brrunno [24]
I guess its 16/5 = 3 1/5 
4 0
3 years ago
What is 201-[4(2+6)+15?
anzhelika [568]

Answer:

154

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Find a parametrization of the ellipse centered at the origin in the xy-plane that has major diameter 12 along the x-axis, minor
lord [1]

Answer:

x = 6 cos t

y = 6 sin t

where t varies from 0 to 2pi

Step-by-step explanation:

Given that an ellipse is centred at the origin in xy plane.

So equation would be of the form

\frac{x^2}{a^2} +\frac{y^2}{b^2} =1

Major axis =2a= 12

so a=6

Minor diameter = 8

b = 8/2 = 4

a=6 and b =4

Also (6,0) should correspond to t=0

So best parametrization would be

x = 6 cos t

y = 6 sin t

where t varies from 0 to 2pi

8 0
3 years ago
(10 points plus 5 more) Sorry, I forgot to add a picture lol xD Please help out! It will mean alot, thank you!
disa [49]

Answer:

5x8 = 40

base x height = area

7x10 = 70

70-40 = 30

Step-by-step explanation:

7 0
2 years ago
A cereal company makes a cereal from two ingredients: wheat and oats. Each ingredient provides two essential nutrients: vitamin
Nikitich [7]

Answer:

z (min ) = 0.4167    $

x = 8,33 oz

y = 0

Step-by-step explanation:

Table:

                              Vitamin A        Vitamin B         Cost $/oz

Wheat  (x)                10.5                    2.4                   0.05          

Oats     (y)                 6                       1.8                    0.10          

Requirements           48 (mg)              20 (mg)

Requirements           1,693 (oz)           0,7054 (oz)

The problem is minimized z subject to two constraint

z  =  0.05*x  + 0.1*y   to minimize

Subject to:

Requirement  of  Vitamin A

10.5*x + 6 * y  ≥  48

Requirement  of  Vitamin B

2.4*x   + 1.8*y ≥  20

x≥0  y≥0

Using  the on-line solver AtomZmaths and after 3 iterations the solution is:

z (min ) = 0.4167    $

x = 8,33 oz

y = 0

8 0
2 years ago
Other questions:
  • Plzzzzz help worth 15 points
    8·1 answer
  • Word phrase for algebraic expression 18 + 43s
    8·1 answer
  • Whats the length BC
    9·1 answer
  • A line segment is drawn from (1, 3) to (8, 3) on a coordinate grid.
    11·2 answers
  • Find, in terms of π, the surface area of a sphere generated by rotating a semicircle of radius 6 inches about its diameter.
    7·1 answer
  • Which equation is correct?
    11·1 answer
  • If a = 6, b= 7.5 and c= -2, calculate:<br> a + b + c
    15·2 answers
  • 2 1/8 and 17/8 are reciprocal numbers. True False
    10·1 answer
  • Which number line shows one way to find the value of 2 - 6?
    7·2 answers
  • 4. What steps can be taken to find the product of 0.92 and 1,000?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!