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stealth61 [152]
3 years ago
13

Can you help me with my Math, please?

Mathematics
2 answers:
creativ13 [48]3 years ago
6 0
The first poster is not an accurate representation of the painting, but the second poster is an accurate representation because the ratio between the first and original lengths did not equal the ratio between the first and original widths but the second poster's ratios were equal.
Brrunno [24]3 years ago
5 0

Answer:

Option C is the correct answer.

Step-by-step explanation:

The original painting dimensions are = 92 cm long by 73 cm high

The first poster measures 120 cm long by 100 cm high.

Lets check the ratio.

\frac{120}{92} by \frac{100}{73} This reduces to nowhere.

The second poster measures 138 cm long by 109.5 cm high.

Ratio is : \frac{138}{92} by \frac{109.5}{73}

This reduces to 1.5 by 1.5

Therefore we can say - The first poster is not an accurate representation of the painting, but the second poster is an accurate representation.

The ratio defines it all. The ratio of the first poster to original picture is not accurate but the ratio of second one is accurate.

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Mr. Williams buys 12 gallons of ivory paint to paint the exteriors of his home. How much does one gallon of paint cost, if he bi
marysya [2.9K]

Answer:

$25.40

Step-by-step explanation:

Find the unit price. So what you do is just divide 304.80 by 12 to get the price of one which comes out to be $25.40

8 0
2 years ago
Kathryn deposits 100 into an account at the beggining of each 4 year period for 40 years. The account credits interest at an eff
OleMash [197]

Answer:

6194.84

Step-by-step explanation:

Using the formula for calculating accumulated annuity amount

F = P × ([1 + I]^N - 1 )/I

Where P is the payment amount. I is equal to the interest (discount) rate and N number of duration

For 40 years,

X = 100[(1 + i)^40 + (1 + i)^36 + · · ·+ (1 + i)^4]

=[100 × (1+i)^4 × (1 - (1 + i)^40]/1 − (1 + i)^4

For 20 years,

Y = A(20) = 100[(1+i)^20+(1+i)^16+· · ·+(1+i)^4]

Using X = 5Y (5 times the accumulated amount in the account at the ned of 20 years) and using a difference of squares on the left side gives

1 + (1 + i)^20 = 5

so (1 + i)^20 = 4

so (1 + i)^4 = 4^0.2 = 1.319508

Hence X = [100 × (1 + i)^4 × (1 − (1 + i)^40)] / 1 − (1 + i)^4

= [100×1.3195×(1−4^2)] / 1−1.3195

X = 6194.84

4 0
3 years ago
Read 2 more answers
Which of these coordinates would represent the intercepts of the graph of the function f(x)=3x-9
4vir4ik [10]
(3,0) and (0,-9)
Explanation: type the equation in a graphing calculator and the answer is the points where the line crosses the x and y axis

7 0
2 years ago
Read 2 more answers
Given x = wavelength and y = frequency are inversely related, solve for the constant for the given type of
Natasha_Volkova [10]

Answer:

given

x = k 1/ y

so

k = x y

= 300,000 × 40

= 12,000,000

4 0
3 years ago
Read 2 more answers
Select the correct answer from each drop-down menu.
Illusion [34]

Answer:

-2(57+8) = 14 + 6x

step 1 -2 x 57 and -2 x 8   =

step 2 -114-16 = 14 + 6x

                +16    +16

step 3 -114 = 30 + 6x

           -30    -30

step 4 -144 = 6x

           -144/6  6/6

            x = -24

-2(5x + 8) = 14 + 6x

step 1 -2 x 5x and -2 x 8 =

          -10x - 16 = 14 + 6x

step 2 -6x                -6x

           -16x -16 = 14

step 3         +16   +16

            -16x = 30

step 4  -16/-16  30/-16

            x= -15/8

     

6 0
3 years ago
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