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docker41 [41]
3 years ago
8

Please answer this correctly

Mathematics
2 answers:
katrin [286]3 years ago
8 0
She needs 10 more plates
Len [333]3 years ago
8 0

Answer:

10

Step-by-step explanation:

Rosa needs 29 plates

She has 13 blue plates and 6 red plates.

She therefore has a total of 13+6 plates= 19 plates

She needs 29-19 more plates = 10 plates.

She needs 10 more plates to buy

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Convert 359in^2 to square feet. round to 1 decimal place.
klemol [59]

Based on dimensional analysis and unit conversion theory we conclude that an area of 359 square inches is equivalent to an area of 2.5 square feet.

<h3>How to apply dimensional analysis in unit conversion</h3>

In this question we need to convert a magnitude in a given unit to an <em>equivalent</em> magnitude with another unit. According to dimensional analysis, <em>unit</em> conversions are represented by the following expression:

y = A · x     (1)

Where:

  • x - Original magnitude, in square inches.
  • y - Resulting magnitude, in square feet.
  • A - Conversion factor, in square feet per square inch.

Dimensionally speaking, area is equal to the product of length and length:

[Area] = [Length] × [Length]

And a feet is equivalent to 12 inches. Now we proceed to convert the magnitude to square feet:

x = 359 in² × (1 ft/12 in) × (1 ft/12 in)

x = 359 in² × (1 ft²/144 in²)

x = 2.5 ft²

Based on dimensional analysis and unit conversion theory we conclude that an area of 359 square inches is equivalent to an area of 2.5 square feet.

To learn more on unit conversions: brainly.com/question/11795061

#SPJ1

5 0
2 years ago
When markup is based on cost... a. Cost is equal to selling price b. Cost is the portion c. Cost is 100 percent d. Markup is the
Vikentia [17]

Answer:

Answer

When markup is based on cost, markup is the rate percentage

Step-by-step explanation:

During the selling of merchandise or services to customers, the business person has to charge a price higher than the cost of goods or labor so as to get profit. The markup of cost is therefore the percentage of an item’s wholesale cost that the retailer adds in its retail price to make profits.



3 0
3 years ago
Solve for the equation 3x+2=8
ivann1987 [24]

I'm Pretty Sure The Answer Is x=2

Hope This Help's

3 0
3 years ago
Read 2 more answers
H(x)=x^2-1 what is the average rate of change of h over the interval −3≤x≤−1
Allisa [31]

slope = m = \cfrac{rise}{run} \implies \cfrac{ f(x_2) - f(x_1)}{ x_2 - x_1}\impliedby \begin{array}{llll} average~rate\\ of~change \end{array}\\\\[-0.35em] \rule{34em}{0.25pt}\\\\ h(x)=x^2-1 \qquad \stackrel{-3\leqslant ~~x~~\leqslant -1}{\begin{cases} x_1=-1\\ x_2=-3 \end{cases}}\implies \cfrac{h(-3)-h(-1)}{-3-(-1)} \\\\\\ \cfrac{[(-3)^2-1]~~ -~~[(-1)^2-1]}{-3+1}\implies \cfrac{8~~-~~0}{-2}\implies -4

7 0
2 years ago
A bag of marbles contains 10 blue marbles, 62 yellow marbles, 34 green marbles, 71 orange marbles, and 23 red marbles. What perc
melomori [17]

Answer:

your answer is C. 31%

percentage of yellow marbles =

\frac{62}{10 + 62 + 34 + 71 + 23} × 100

\frac{62}{200} × 100

31\%

4 0
3 years ago
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