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4 years ago

38%of what number is 57

Mathematics

2 answers:

UkoKoshka [18]4 years ago

8 0

The answer is 21.66

Fantom [35]4 years ago

3 0

The correct answer is 21 :)

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NO LINKS!! NO MULTIPLE CHOICE!!

viva [34]

Answer:

Given points

A = (2, 1)
B = (4, 3)
C = (5, 3)
D = (6, 1)

See attached

Trapezoid

To dilate ABCD with a dilation center at (0,0) and a dilation factor of 4, multiply the x and y coordinates of ABCD by sf 4:

A' = (8, 4)
B' = (16, 12)
C' = (20, 12)
D' = (24, 4)

<u /> $\begin{aligned}\textsf{Area of Trapezoid}& =\dfrac{1}{2}(a+b)h\\\implies \textsf{Area of A'B'C'D'}& =\dfrac{1}{2}((x_{D'}-x_{A'})+(x_{C'}-x_{B'}))(y_{B'}-y_{A'})\\& = \dfrac{1}{2}((24-8)+(20-16))(12-4)\\& = \dfrac{1}{2}(20)(8)\\& = 80\: \sf units^2\end{aligned}$

5 0

2 years ago

for a fundraiser, Hailey raises $27, plus 1.50 for each lap she swims. Tariana raises $18, plus $3 for each lap she swims what i

borishaifa [10]

Answer:

The number of laps for which two swimmers have raised the same amount of money is 6 .

Step-by-step explanation:

Given as :

The amount raised by Hailey = $27 + $1.50 × each lap she swim

The amount raised by Tariana = $18 + $3 × each lap she swim

Let The number of laps after which both swimmer raised same amount = n

Now, According to question

<u>For both swimmer to raised same amount</u>

I.e The amount raised by Hailey = The amount raised by Tariana

Or, $27 + $1.50 × each lap she swim = $18 + $3 × each lap she swim

Or, $27 + $1.50 × n = $18 + $3 × n

Or, $27 - $18 = $3 n - $1.50 n

Or, 9 = 1.5 n

∴ n = $\dfrac{9}{1.5}$

I.e n = 6

So, number of lap for same amount of both = n = 6

Hence The number of laps for which two swimmers have raised the same amount of money is 6 . Answer

5 0

3 years ago

A store owner paid 15 dollars for a book. She marked up the price of the book by 40 percent to determine its selling price.

SpyIntel [72]

Part a: 21 dollars because you multiply .40 with 5 and get 6. you add the 6 to the 15 and get 21.
part b: 30.21 because you multiply 38 by .25 and get the answer for that and then subtract that number from 38. then you multiply 0.06 by 38 and when u get that number, add that to the discounted price.

6 0

3 years ago

A granola bite contains 27 calories. Most of the calories come from $$ grams of carbohydrates. The rest come from other ingredie

Yakvenalex [24]

Answer:

c = 5.5

Step-by-step explanation:

c represents the grams of carbohydrates

27 is the total number of calories that are received by the granola bite.

4 is the number of calories from 1 gram of carbohydrates and

5 is the number of calories that are received from other ingredients.

Answer of Part a:

5 is the number of calories that are received from other ingredients.

Part b:

take left hand side (LHS) and put values of c = 8 and 3 one by one.

So, LHS becomes:

4 \times 8 + 5 = 37 4 \

times 3 + 5 = 17

So, Priya is correct that neither 8 or 3 could be solution.

Part c:

So, solution to the equation is: c = 5.5

8 0

3 years ago

Solve for x in simplest form: 4 = 2/3(2x -9)

irina [24]

Answer:

x = 7.5

Step-by-step explanation:

4 = 2/3 (2x - 9)

4 = 4/3x - 6

4 + 6 = 4/3x - 6 + 6

10 = 4/3x

10 x 3/4 = x

x = 7.5

8 0

4 years ago