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
Troyanec [42]
3 years ago
10

A person purchased 10 items to donate to a school. They bought backpacks that cost $25.75 each and notebooks that cost $4.25 eac

h. The total cost of the items is $150. This situation can be represented by a system of equations with a unique solution.
What does the solution (x, y) to the system of equations represent in this context?



A. the cost of all the backpacks



B. the cost of all the notebooks



C. the total amount of money spent on the items



D. the number of backpacks and notebooks purchased
Mathematics
1 answer:
krek1111 [17]3 years ago
6 0

Answer:

D

Step-by-step explanation:

You might be interested in
First five multiples of 15
BARSIC [14]

The first 5 multiples of 15 are: 0, 15, 30, 45, 60

6 0
3 years ago
Read 2 more answers
A bag contains only red, green, brown and yellow marbles.
Mila [183]

Answer:

nikky ggeibf theke jmbhknfyk be s you know vfub be fj set u in vy d so o ka vgu

8 0
2 years ago
Q3. Stefan has 4 1/2 cups of oats. He uses 3 1/4 cups to make granola bars for
AleksAgata [21]

Answer:

Days can Stefan feed

Coco with the oats he has left is 5 days

Step-by-step explanation:

Total Oats = 4 1/2 cups

He uses 3 1/4 cups to make granola bars for

a camping trip

Remaining oats after making granola bars = Total oats - oats used for granola bars

= 4 1/2 - 3 1/4

.= 9/2 - 13/4

= 18-13/4

= 5/4 cups

Remaining oats after making granola bars is 5/4 cups

Coco needs 1/4 of a cup of oats each day, how many days can Stefan feed

Coco with the oats he has left?

Days can Stefan feed

Coco with the oats he has left = Remaining oats / 1/4 cups

= 5/4 cups ÷ 1/4 cups

= 5/4 × 4/1

= 20/4

= 5 days

Days can Stefan feed

Coco with the oats he has left is 5 days

5 0
3 years ago
Evan wants to build a rectangular enclosure for his animals. One side of the pen will be against the barn, so he needs no fence
pentagon [3]

Answer:  A.   A=(1000-2w)*w      B. 250 feet

C.  125 000 square feet

Step-by-step explanation:

The area of rectangular is A=l*w    (1)

From another hand the length of the fence is 2*w+l=1000        (2)

L is not multiplied by 2, because the opposite side of the l is the barn,- we don't need in fence on that side.

Express l from (2):

l=1000-2w

Substitude l in (1) by 1000-2w

A=(1000-2w)*w        (3)   ( Part A. is done !)

Part B.

To find the width w  (Wmax) that corresponds to max of area A   we have to dind the roots of equation (1000-2w)w=0  ( we get it from (3))

w1=0  1000-2*w2=0

w2=500

Wmax= (w1+w2)/2=(0+500)/2=250 feet

The width that maximize area A is Wmax=250 feet

Part C.   Using (3) and the value of Wmax=250 we can write the following:

A(Wmax)=250*(1000-2*250)=250*500=125 000 square feets

3 0
2 years ago
7-9: Practice Buddy: Independent Practice; Problem Solving please help!
strojnjashka [21]

Answer:

4/3/8

Step-by-step explanation:

12/1/2-8/8/1

=25/2-65/8

=100-65/8

=35/8

=4/3/8

3 0
2 years ago
Read 2 more answers
Other questions:
  • When should you record a 1in the tens column when you regroup in an addition problem
    14·1 answer
  • What =x in 1/4x+7=31/4
    9·1 answer
  • A rectangle has a perimeter of 68 inches. If the width of the rectangle is 10 inches, what is the length of the rectangle
    15·2 answers
  • Solve the following equation algebraically:
    14·2 answers
  • A woman 5 9/10
    7·1 answer
  • Bennett bought a $21 meal. The sales tax was 5%. Bennett tried to find the sales tax in a few different ways. Which of his metho
    7·2 answers
  • Please help I don’t understand this
    8·1 answer
  • Customers can pick their own apples at well orchards. They pay $6 to enter the orchard and $2 per pound for the apples they pick
    7·1 answer
  • (16/81) raised to the -3/4
    9·1 answer
  • Choose the correct simplification of the expression −4x2(6x − 5x2 − 5). 20x4 24x3 20x2 −9x4 2x3 − 9x2 20x4 − 24x3 20x2 −20x4 24x
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!