MATHEMATICS MIDDLE SCHOOL

What is 27 over 40 as a decimal

Answers

Answer 1
Answer: 27 divided by 40 is equal to 0.675.

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Is 6,500 ten times as much as 65 explanation and how to get the answer

Answers

No, 6,500 is one hundred times as much as 65, because of the two zeros on the end.  100 and 6,500.

What is the value of the following expression? 2×{6+[12÷(3+1)]}-1

Answers

First of all 3+1=4
Next divide 12 and 4 that equals 3
3+6 is equal to 9
9×2=18
Finally 18-1=17
My answer is 17
3+1=4
12/4=3
6+3=9
9*2=18
18-1=17

Use properties and mental math to find sum 10 1/8+(3 5/8+2 7/8)

Answers

The given expression {10(1)/(8) + (3(5)/(8) + 2(7)/(8))} is equivalent to 16.625.

What are algebraic expressions?

  • In mathematics, an expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.
  • Mathematical symbols can designate numbers (constants), variables, operations, functions, brackets, punctuation, and grouping to help determine order of operations and other aspects of logical syntax.

Given is the expression as -

10(1)/(8) + (3(5)/(8) + 2(7)/(8))

The given expression is -

10(1)/(8) + (3(5)/(8) + 2(7)/(8))

81/8 + 29/8 + 23/8

(81 + 29 + 23)/8

133/8

16.625

Therefore, the given expression {10(1)/(8) + (3(5)/(8) + 2(7)/(8))} is equivalent to 16.625.

To solve more questions on algebraic expressions, visit the link below -

brainly.com/question/1041084

#SPJ2
3 5/8 + 2 7/8 = 6 1/8 + 10 1/8 = 16 2/8 so the answer would be 16 2/8

True or false. the sum of the intrtior angles of a quadrilateral equals 340 degrees

Answers

1angle = 90
4 angles =360
the answer is false

False . The sum of the interior angles = 360°

A quadrilateral can be split into 2 triangles each with a sum of 180°

thus the sum of the interior angles of a quadrilateral = 2 × 180° = 360°

As a salesperson, you are paid $50 per week plus $2 per sale. This week you want your pay to be at least $100. What is the minimum number of sales you must make to earn at least $100?

Answers

50+2x=100
-50       -50(subtract 50 from both sides)
       2x=50 (divide both sides by 2)
        x=25

Answer:

Step-by-step explanation:

Marina wants to purchase a rosebush ford dollars at a garden store. She has a coupon good for$5 off her purchase, and the store is having a 10% off sale.
Part A
Write two different, equivalent expressions for how much the rosebush will cost if the coupon.is
applied first and the 10% discount second.
Part B
Write an expression for how much the rosebush will cost if the 10% discount is applied first and
the coupon is applied second.
Part
Which order will save Marina more money? Explain your reasoning.

Answers

Answer:

Part A:  0.9d - 4.5

Part B:  0.9d - 5

Part C:  Order that will save Marina money is "discount applied first, then coupon"

Step-by-step explanation:

Part A

The rosebush costs "d" dollars

Coupon = $5 OFF

Discount = 10%

We want to find cost of rosebush when COUPON APPLIED 1st and DISCOUNT APPLIED 2nd.

Cost = d

Coupon Applied Cost = (d - 5)

Discount Applied Cost = 10% off means 100 - 10 = 90% of the price remains, that is 90/100 = 0.9 times the price, so:

0.9(d - 5) = 0.9d - 4.5

Part B

When we apply 10% discount to the initial price of "d", we get 90% of the price remaining.

So, price would be:

Normal Price = d

Discount Price = 0.9d

Now, coupon applied of $5, we get:

0.9d - 5

Part C

We have two expressions, let the original price, d, be 100, so

Part A price would be 0.9d - 4.5 = 0.9(100) - 4.5 = 85.5

Part B price would be 0.9d - 5 = 0.9(100) - 5 = 85

So, Marina will save up money going on the 2nd option.

Order that will save Marina money is "discount applied first, then coupon"
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