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
BigorU [14]
2 years ago
7

Malik stops at the grocery store to buy a bag of diapers and 2 cans of formula. He spends a total of $37. The next week he stops

and buys 2 bags of diapers and 5 cans of formula for a total of $87. How much does a bag of diapers cost? How much is one can of formula?
Mathematics
2 answers:
Sedbober [7]2 years ago
8 0

Answer:

Diapers costs $11 and formula is $13.

Step-by-step explanation:

Let's name diapers as A and formula as B.

Simply the equations:

1A + 2B = $37(1)

2A + 5B = $87(2)

Clear D from one equation.

A = $37 - 2B(1)

Replace D into the other equation.

2*($37 - 2B) + 5B = $87(2)

$74 - 4B + 5B = $87

$74 + B = $87

B = $87 - $74 = $13

Find A, now knowing B.

A = $37 - 2($13)

A = $37 - $26 = $11

Vaselesa [24]2 years ago
7 0

Answer:

Cost of a bag of diapers is $11 and cost of one can of formula is $13.

Step-by-step explanation:

Let cost of each diaper = $D and cost of each cans of formula = $C

Malik shops a bag of diapers and 2 cans of formula.

He spends total of $37.

So the equation will be

D + 2C = 37 -------(1)

Next week he stops and buys 2 bags of diapers and 5 cans of formula.

He spends total $87.

Equation for this purchase will be

2D + 5C = 87 ----------(2)

Multiply equation (1) by 2 and subtract it from equation (2).

2(D + 2C) - (2D + 5C) = 2×37 - 87

2D + 4C - 2D - 5C = 74 - 87

-C = - 13

C = 13

From equation (1)

D + 2×13 = 37

D + 26 = 37

D = 37 - 26

D = 11

Therefore, cost of a bag of diapers is $11 and cost of one can of formula is $13.

You might be interested in
A prize fund is setup with a single investment of £4000 to provide an annual prize of £150. The fund accrues interest at 5% p.A.
Verdich [7]

The invested amount, A=£4000

Rate of interest on this amount, r=5% per annum.

Total interest on the amount £4000 after 1 year

= 5\% \;\text{of} \;\£ 4000=0.05\times \£4000=\£200.

The total amount after 1 year, P=£4000+£200=£4200

Amount remains after an annual prize of £150=£4200-£150=£4050.

Note that after providing the annual prize the amount remains is £4050 which is more than the invested amount of £4000 as the prize money is less than the interest gained.

Now, for the 2nd year, the 5% interest is on the principal amount of £4050, which will have more interest as compared to the interest of 1st year.

Again, after prize distribution, the total amount remains for the principal amount of 3rd year will be more than the principal amount of 2nd year. This sequence repeated every year and the total amount will increase every year.

So, it will never end, the full prize money can be awarded for infinitely many years.

7 0
2 years ago
Mrs. kelley asked her students to plot the number of books they read over the summer. a dot blot titled books read over the summ
Natalka [10]

The total number of students that plotted the number of books they read was <u>18,</u> making the <u>4th option</u>, a correct choice, using the dot plot.

Any data that may be shown as dots or tiny circles is called a dot plot. Given that the height of the bar created by the dots indicates the numerical value of each variable, it is comparable to a bar graph or a simple histogram. Small amounts of data are shown using dot plots.

In the question, we are informed that Mrs. Kelley asked her students to plot the number of books they read over the summer. a dot plot titled books read over the summer goes from 0 to 7. 0 has 1 dot, 1 has 3 dots, 2 has 6 dots, 3 has 2 dots, 4 has 3 dots, 5 has 1 dot, 6 has 2 dots, and 7 has 0 dots.

We are asked to find the total number of students that plotted the number of books they read using the dot plot.

The dot plot is attached to the solution.

The total number of students = The total number of dots = 1 + 3 + 6 + 2 + 3 + 1 + 2 + 0 = 18.

Thus, the total number of students that plotted the number of books they read was <u>18,</u> making the <u>4th option</u>, a correct choice, using the dot plot.

Learn more about dot plots at

brainly.com/question/24309209

#SPJ1

5 0
1 year ago
Factor 108-3n squared
Len [333]
The answer to the question is √3(−n+36)
5 0
3 years ago
Read 2 more answers
Y=−2x+9 write in standard form
oksian1 [2.3K]

Answer:

2 x − y = − 9

Step-by-step explanation:

I am not 100% sure but I think this is right.

5 0
3 years ago
Read 2 more answers
At a local pet store guppies are on sell for $0.70 each and sword tails $1.80 each. If amanda buys 4 guppies and 3 sword tails h
Lesechka [4]

Answer:

$8.20

Step-by-step explanation:

0.70*4=2.80

1.80*3=5.40

5.40+2.80=8.20

$8.20

5 0
3 years ago
Read 2 more answers
Other questions:
  • The angle of depression from the top of the tree to the tip of the shadow is 25°. Find the height of the tree to the nearest ten
    15·1 answer
  • researchers are conducting a survey about what brand of ice cream shoppers prefer. they survey the tenth person who walks into t
    15·2 answers
  • What is the solution to the equation below?
    8·1 answer
  • Write (-5,1),(0,6) In standard form and point-slope form
    11·1 answer
  • Ethan writes
    6·2 answers
  • Using a table to graph equations in standard form help.Be dumb i will report ​
    12·1 answer
  • How many numbers are 10 units from 0 on the number line?
    14·1 answer
  • 1) Change the base of the function y= 4 × 8^x to base 2. options:
    12·1 answer
  • Please help me!!!!!!!!!!!!!!!!1
    10·2 answers
  • 5 tons of gravel is equally divided by four dump trucks how much drag how much gravel is on one dump truck
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!