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
polet [3.4K]
3 years ago
10

Ms. Blankenship had $80 to purchase school supplies for her class. She bought 32 glue sticks and 32 boxes of crayons. Each glue

stick cost $1.40, and each box of crayons cost $0.59. How much money did Ms. Blankenship have left after these purchases?
Mathematics
1 answer:
RideAnS [48]3 years ago
7 0

Answer:

$16.32

Step-by-step explanation:

1. Ms. Blankenship bought 32 glue sticks each for  $1.40, then she spent

\$1.40\cdot 32=\$44.80

for all sticks.

2. Ms. Blankenship bought 32 boxes each for  $0.59, then she spent

\$0.59\cdot 32=\$18.88

for all boxes.

3. Together 32 glue sticks and 32 boxes cost

\$44.80+\$18.88=\$63.68.

4. If Ms. Blankenship had $80, then she had left

\$80-\$63.68=\$16.32.

You might be interested in
Find a polar equation for the conic with its focus at the pole and the given vertex or vertices:
Schach [20]

Answer:

A) r = 2/(1 - sinθ)

B) r = 16/(5 + 3 cosθ)

C) r = 2/(1 + 2 cosθ)

Step-by-step explanation:

A) We are given the parabola vertex as:

(r, θ) = (1, -π/2)

The vertex coordinates indicates that it's below the pole and thus the equation of the conic section is represented by;

r = ed/(1 - e sinθ)

Since the equation is a parabola, then the eccentricity is 1.

Thus,plugging in the relevant values;

1 = (1 × d)/(1 - (1 × sin-π/2))

1 = d/(1 - (-1))

1 = d/(1 + 1)

1 + 1 = d

d = 2

Therefore the general equation would be gotten by putting 2 for d and 1 for E.

Thus;

r = (1 × 2)/(1 - (1 × sinθ))

r = 2/(1 - sinθ)

B) vertices of Ellipse are given as;

(2,0) and (8, π)

The equation will be represented by;

r = ep/(1 + e cosθ)

Where e which is the eccentricity is given by: e = c/a

c = (8 - 2)/2

c = 6/2

c = 3

And, a = (8 + 2)/2

a = 10/2

a = 5

Thus,e = 3/5

Thus;

r = (3/5)p/(1 + (3/5) cosθ))

Multiply both numerator and denominator by 5;

r = 3p/(5 + 3 cosθ))

Now, using the vertex (2,0) and plugging it, we have;

2 = 3p/(5 + 3 cos0))

2 = 3p/(5 + 3(1))

2 = 3p/8

p = 16/3

Thus,the equation is;

r = 3(16/3)/(5 + 3 cosθ))

r = 16/(5 + 3 cosθ)

C) Since the directrix is x = p, then the function in the denominator would be cosine. This is because x = 4 which is greater than 0.

It means that there will be an addition sign in the denominator. We use the standard form of;

r = ep/(1 + e cosθ)

So, e = 2 and p = 1

Then;

r = (2 × 1)/(1 + 2 cosθ)

r = 2/(1 + 2 cosθ)

3 0
3 years ago
What is the value of (-5)2?
mixer [17]

Answer:

-10

Step-by-step explanation:

- x + = -

-5 x 2 = -10

6 0
3 years ago
Read 2 more answers
Which choice could be the equation of a line parallel to the line represented by this equation? y=7/4x - 6
stealth61 [152]
The answer is c, because it is the same line, just higher.
7 0
3 years ago
Scheels has a kayak that regularly sells for $389. Every Friday in November it was marked down by 32%. What is the amount of dis
Y_Kistochka [10]

Answer:

1. $264.52 is the remaining 68%

2. Sales tax is $19.83

3. The total price is 283.83

Explanation:

1. 389 times 0.68 will get you an answer of $264.52

2. 264.52 times 0.075 is $19.83

3. Add your two answers of $264.52 and $19.83 and you'll get your answer of $283.83

8 0
3 years ago
Write the fraction 9/50 as a decimal if needed round to the nearest hundredth
Marysya12 [62]
0.18 I didn't round it tho lol
8 0
3 years ago
Read 2 more answers
Other questions:
  • Which function has only one x-intercept at (-6, 0)?
    9·2 answers
  • The sum of three consecutive numbers is 90. What is the largest integer?
    7·1 answer
  • Make m the subject of the formula ​
    9·1 answer
  • Tell whether the ordered pair (-4,-2) is a solution of the system of linear equations.
    7·1 answer
  • James and Sara participated in a walking program for 7 days. James walked 2 miles every day. Sara walked 2 1 miles every day Whi
    13·1 answer
  • Write the equation of the line that passes through the points (-9, -7) and (-4, 4).
    10·1 answer
  • Just answer these two questions quick I am VERY CONFUSED I give Brainliest
    11·1 answer
  • The following are true about a square of a binomial except
    6·2 answers
  • Starting at sea level, a submarine descended at a constant rate to a depth of −4/5 mile relative to sea level in 3 minutes.
    9·1 answer
  • The cost to produce x units of wire is C=30x +500, while the revenue is R = 40x. Find the interval where the product will at lea
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!