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laiz [17]
4 years ago
6

John’s parents put $40 on his school account for lunch. Each day is a three dollars for lunch. Y represent the amount of money J

ohn has after x days in a school account.
Mathematics
1 answer:
Dominik [7]4 years ago
3 0

Answer:

y = $40 - ($3/day)x

Step-by-step explanation:

y = $40 - ($3/day)x represents the amount of money John has left after x days.

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WILL GIVE BRAINSLIEST EASY. Find each product mentally. Show the steps used.
svetoff [14.1K]

Answer:

1) 396

2) 20 1/2

3) 26.6

4) 8x + 56

5) 66 + 6x

6) 8x + 8

Step-by-step explanation:

* Lets explain how to solve the product mentally

# Remember the distributive property can help you to find the product

  mentally the distributive property ⇒ a(b + c) = ab + ac

- Lets solve them

1)

- In 9 × 44 we can write 44 as (40 + 4)

∴ 9 × 44 = 9(40 + 4)

∵ 9(40 + 4) = 9 × 40 + 9 × 4

- Now lets multiply 9 by 40 and 9 by 4

∵ 9(40) = 360

∵ 9(4) = 36

∴ 9 × 40 + 9 × 4 = 360 + 36 = 396

∴ 9 × 44 = 396

2)

- In 4 × 5 1/8 we can write 5 1/8 as (5 + 1/8)

∴ 4 × 5 1/8 = 4(5 + 1/8)

∵ 4(5 + 1/8) = 4 × 5 + 4 × 1/8

- Now lets multiply 4 by 5 and 4 by 1/8

∵ 4(5) = 20

∵ 4(1/8) = 1/2

∴ 4 × 5 + 4 × 1/8 = 20 + 1/2 = 20 1/2

∴ 4 × 5 1/8 = 20 1/2

3)

- In 7 × 3.8 we can write 3.8 as (3 + 0.8)

∴ 7 × 3.8 = 7(3 + 0.8)

∵ 7(3 + 0.8) = 7 × 3 + 7 × 0.8

- Now lets multiply 7 by 3 and 7 by 0.8

∵ 7(3) = 21

∵ 7(0.8) = 5.6

∴ 7 × 3 + 7 × 0.8 = 21 + 5.6 = 26.6

∴ 7 × 3.8 = 26.6

- The distributive property ⇒ a(b + c) = ab + ac

4)

- In 8(x + 7) we will multiply 8 by x and 8 by 7 and add them

∵ 8 × x = 8x

∵ 8 × 7 = 56

∴ 8(x + 7) = 8x + 56

5)

- In 6(11 + x) we will multiply 6 by 11 and 6 by x and add them

∵ 6 × 11 = 66

∵ 6 × x = 6x

∴ 6(11 + x) = 66 + 6x

6)

- In 8(x + 1) we will multiply 8 by x and 8 by 1 and add them

∵ 8 × x = 8x

∵ 8 × 1 = 8

∴ 8(x + 1) = 8x + 8

4 0
3 years ago
C^4<br> ____<br> c^3 <br><br> please could you help
Dennis_Churaev [7]

Hello.

Remember the Property of exponents:

\mathrm{\displaystyle\frac{a^{m} }{a^{n} } =a^{m-n}}

Let's use it to solve our maths problem.

\mathrm{\displaystyle\frac{c^{4} }{c^{3} } =c^{4-3} }

Subtract the exponents:

\mathrm{c^{1} =c}

Therefore, the answer is

c.

I hope it helps.

Have a nice day.

\boxed{imperturbability}

8 0
3 years ago
Si el divisor de una división es 67, el cociente es 495 y el residuo es 31, ¿cuál es el valor del dividendo? A. 33.196 B. 33.264
Archy [21]

Answer:

Divisor = 67, Cociente = 495

Resto = 31

Dividendo = Cociente × Divisor + Resto

Dividendo = 495 × 67+ 31

= 33165 +31

= 33,196

Step-by-step explanation:

7 0
3 years ago
Ms. Lado can type 76 words every minute. Ms. Priya can type 65 words every minute. ​How many more words can Ms. Lado type than M
kondor19780726 [428]

Answer:

935 words

Step-by-step explanation:

76*85=6460

65*85=5525

6460-5525=935

5 0
4 years ago
Read 2 more answers
A. Your bed is a rectangle that is 4 feet by 6 feet wide. Draw a model of it below and label the dimensions. Find the perimeter
musickatia [10]

The model which model the dimensions of the bed has been attached.

  • The perimeter and area of the bed is 10 feet and 24 square feet respectively.
  • The perimeter of your bed is less than the perimeter of the items, so not all items can be underneath your bed.

<h3>What is the perimeter and area of the bed?</h3>

  • Length of the rectangle = 6 feet
  • Width of the rectangle = 4 feet

Perimeter of the bed = 2(length + width)

= 2(6 + 4)

= 2(10)

= 20 feet

Area of the bed = Length × width

= 6 feet × 4 feet

= 24 square feet

  • Perimeter of the suitcase = 14 feet
  • Perimeter of Lego box = 10 feet
  • Perimeter of memory box = 10 feet
  • Perimeter of stash = 6 feet

Total perimeter = 14 + 10 + 10 + 6

= 40 feet

Therefore, the items listed can not all be underneath your bed because the total perimeter of the items is greater than the perimeter of your bed.

Read more on perimeter of a rectangle:

brainly.com/question/24571594

#SPJ1

4 0
1 year ago
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