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
4vir4ik [10]
3 years ago
12

Lee needs some school supplies. He will buy 3 notebooks for $1.29 each, 2 dozen

Mathematics
2 answers:
german3 years ago
8 0
How much is it that’s my question
blsea [12.9K]3 years ago
7 0
If 3 notebooks are 1.29 each, that’s 3.87 on notebooks. two dozen pencils at 3.45 a dozen is 6.90. add 3.87, 6.90, and 14.85 for a total of $25.62. While Lee’s estimate was reasonable, it was a bit short.
You might be interested in
If you have a right triangle is 10 cm² and one of the legs is 4 cm find the length of the other leg
lesya [120]

If you are saying that the hypotenuse is 10 cm the you have to solve the following equation using the Pythagorean theory.

4^2 + b^2 = 10^2

16 + b^2 = 100

16 - 16 + b^2 = 100 - 16

b^2 = 84

Find \sqrt{84\\

5 0
3 years ago
Read 2 more answers
In the Midpoint Rule for triple integrals we use a triple Riemann sum to approximate a triple integral over a box B, where f(x,
Tomtit [17]

To approximate the volume with 8 boxes, we have to split up the interval of integration for each variable into 2 subintervals, [0, 1] and [1, 2]. Each box will have midpoint m_{i,j,k} that is one of all the possible 3-tuples with coordinates either 1/2 or 3/2. That is, we're sampling f(x,y,z)=\cos(xyz) at the 8 points,

(1/2, 1/2, 1/2)

(1/2, 1/2, 3/2)

(1/2, 3/2, 1/2)

(3/2, 1/2, 1/2)

(1/2, 3/2, 3/2)

(3/2, 1/2, 3/2)

(3/2, 3/2, 1/2)

(3/2, 3/2, 3/2)

which are captured by the sequence

m_{i,j,k}=\left(\dfrac{2i-1}2,\dfrac{2j-1}2,\dfrac{2k-1}2\right)

with each of i,j,k being either 1 or 2.

Then the integral of f(x,y,z) over B is approximated by the Riemann sum,

\displaystyle\iiint_B\cos(xyz)\,\mathrm dV\approx\sum_{i=1}^2\sum_{j=1}^2\sum_{k=1}^2\cos m_{i,j,k}\left(\frac{2-0}2\right)^2

=\displaystyle\sum_{i=1}^2\sum_{j=1}^2\sum_{k=1}^2\cos\frac{(2i-1)(2j-1)(2k-1)}8

=\cos\dfrac18+3\cos\dfrac38+3\cos\dfrac98+\cos\dfrac{27}8\approx\boxed{4.104}

(compare to the actual value of about 4.159)

4 0
3 years ago
76 divided by 1973 <br> Pls help this is my final question
Ipatiy [6.2K]

Answer:

0.03852002027

Step-by-step explanation:

3 0
3 years ago
Hannah has to make 25 gallons of punch for a potluck. The punch is made of soda and fruit drink. The cost of the soda is $1.79 p
Rus_ich [418]

Answer:

Hannah needs 10 gallons of soda and 15 gallons of fruit drink

Step-by-step explanation:

Let

x -----> the number of gallons of soda needed

y ----> the number of gallons of fruit drink needed

we know that

x+y=25 -----> equation A

1.79x+2.49y=2.21(25)

1.79x+2.49y=55.25 -----> equation B

Solve the system by graphing

Remember that the solution of the system of equations is the intersection point both graphs

The solution is the point (10,15)

see the attached figure

therefore

Hannah needs 10 gallons of soda and 15 gallons of fruit drink

3 0
4 years ago
One-half the square of b
enot [183]
A machine produces 240 bolts in 25 minutes. At the same rate how many bolts would be produced in 45 minutes
8 0
4 years ago
Read 2 more answers
Other questions:
  • Smarter balanced question
    15·1 answer
  • You ate five slices of bread. Your friend eats two slices fewer than you. Write an expression that describes the number of slice
    15·2 answers
  • Determine whether the points p and q lie on the given surface. r(u, v) = u + v, u2 − v, u + v2 p(3, 3, 3), q(4, −2, 10)
    11·1 answer
  • 14 is 70% of what number? Enter your answer in the box.
    15·2 answers
  • PLEASE HELP LOL <br> i am extra BORED
    5·2 answers
  • I need help with this​
    11·1 answer
  • Please help ASAP!, answer as much as you want but I need these answer! Please and thank you have a great and blessed day!
    6·1 answer
  • Simplify the following expression:<br><br> 7472
    6·2 answers
  • Write -5i, 2, and 7 in the simplest polynomial function given the roots
    11·1 answer
  • Suppose that a probability is approximated to be zero based on empirical results. Does this mean that the event is​ impossible?.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!