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jeka94
4 years ago
7

Mikayla bought five shirts at $x three of the five came with a matching top for an additional $9 each. Write and simplify an exp

ression that represents the total cost of her purchase
Mathematics
2 answers:
maria [59]4 years ago
5 0

Answer:

The simplified expression that represents the cost of her purchase is "5x + 27"

Step-by-step explanation:

Since Mikayla bought five shirts each costing $x we need to multiply the number of shirts by the cost, so 5*x, but since three of these shirts came with and additional top that costs $9 we need to take those into account. So the expression that represents the cost of her purchase is:

cost of purchase = 5*x + 3*9

cost of purchase = 5x + 27

LenaWriter [7]4 years ago
3 0

Answer:

5x + 27

Step-by-step explanation:

Since Mikayla bought five shirts each costing $x it would be 5x

->if  three of the five came with a matching top for an additional $9 each, it would be 3 x 9.

therefore, the expression that represents the cost of her purchase is:

Total cost of purchase = 5x + (3 x 9)

Total cost of purchase = 5x + 27

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Answer:

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Step-by-step explanation:

answer me question thx for the points

3 0
3 years ago
There are 0.454 kg of corn starch in a container. How many 0.028 kg portions are in one container?
Diano4ka-milaya [45]
The answer is: 16 portions .
___________________________
Method 1
______________
We divide the total kg of corn starch in the container: 0.454 kg

by the number of given amount in kg specified per each specified portion size: 0.028 kg ; to get the number of specific portion sizes in the container (the answer).
______________________
So, 0.454 / 0.028 = ? portions
_____________________________
Using a scientific calculator:
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 0.454 / 0.028 = 16.214285714 ; and we round to TWO (2) significant figures → 16 portions.
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3 0
3 years ago
The total cost of an order of gift baskets includes the cost of each gift basket plus a one time delivery fee. The cost of each
Helen [10]

Answer:

x = cost of each gift basket = $14.5

y = one time delivery fee = $135

Step-by-step explanation:

Let

x = cost of each gift basket

y = one time delivery fee

40x + y = 715 (1)

400x + y = 5935 (2)

Subtract (1) from (2)

400x - 40x = 5935 - 715

360x = 5220

x = 5220/360

x = 14.5

Substitute x = 14.5 into (1)

40x + y = 715 (1)

40(14.5) + y = 715

580 + y = 715

y = 715 - 580

y = 135

x = cost of each gift basket = $14.5

y = one time delivery fee = $135

4 0
3 years ago
A rectangle has a perimeter of 68 inches it’s length is 2 inches less than 3 times the width what is the area of the rectangle
Kruka [31]

Answer:

225 inches²

Step-by-step explanation:

Let the length be l and width be w

Condition 1

2l+2w=68 (Perimeter=68)--------(i)

Condition 2

l=3w-2 ---------(ii)

Putting equation (ii) in (i)

2(3w-2)+2w=68

6w-4+2w=68

8w-4=68

8w=68+4

8w=72

dividing both sides by 8

w=9 inches

now putting w=9 in (ii)

l=3(9)-2

l=27-2

l=25 inches

Now

Area of rectangle =  l × w

=9 × 25

=225 inches²

4 0
3 years ago
Write and solve the equation what is 15% of 86?
kifflom [539]

Answer:

15% of 86 = 12.9

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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