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snow_tiger [21]
3 years ago
9

If a model car has a scale of 3in.: 5ft., what would be the length of the model be if the actual car was 15 ft. long?

Mathematics
2 answers:
Kamila [148]3 years ago
5 0

Answer:

120ft

Step-by-step explanation:

Viefleur [7K]3 years ago
4 0

set up the ratios:

3/5 = x/15

Cross multiply:

45 = 5x

Divide both sides by 5:

X = 9

The model would be 9 inches long

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How to solve a one step equation of R+3= -6 1/2 <br> please show all the work
IgorC [24]
Solve for R:
R + 3 = -(1/2 + 6)
Put 1/2 + 6 over the common denominator 2. 1/2 + 6 = (2×6)/2 + 1/2:
R + 3 = -(2×6)/2 + 1/2
2×6 = 12:
R + 3 = -(12/2 + 1/2)
12/2 + 1/2 = (12 + 1)/2:
R + 3 = -(12 + 1)/2
12 + 1 = 13:
R + 3 = -13/2
Subtract 3 from both sides:
R + (3 - 3) = -13/2 - 3
3 - 3 = 0:
R = -13/2 - 3
Put -13/2 - 3 over the common denominator 2. -13/2 - 3 = (-13)/2 + (2 (-3))/2:
R = (-13)/2 - (3×2)/2
2 (-3) = -6:
R = (-6)/2 - 13/2
(-13)/2 - 6/2 = (-13 - 6)/2:
R = (-13 - 6)/2
-13 - 6 = -19:
Answer:  R = (-19)/2
6 0
4 years ago
Find the sum of -10x^2-x+6−10x 2 −x+6 and 10x^2-510x 2 −5.
irina [24]

Answer:

1. -10x^2-x+6-10x 2-x+6 = -10x^2 - 22x + 12

2. 10x^2-510x 2-5 = 10x^2 - 1020x - 5

Step-by-step explanation:

hope this helps

if i did something wrong let me know so i can fix my answer

#Virgo2007

8 0
2 years ago
Read 2 more answers
Boof<br>$543.51 is subtotal.
antiseptic1488 [7]

Answer:

The total of the sales price and sales tax is  $ 588.35 .

Step-by-step explanation:

As given

$543.51 be the subtotal .

8.25% is the sales tax .

8.25% is written in the decimal form.

= \frac{8.25}{100}

= 0.0825

Sales tax price = 0.0825 × 543.51

                         = $ 44.84  (Approx)

Total of sales price with sales tax = Sale price + Sales tax price

Putting the values in the above

                                                       = $543.51 + $44.84

                                                       = $ 588.35

Therefore the total of the sales price and sales tax is  $ 588.35 .

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What is the value of (–4)–3?
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Here you go. Good luck!

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3 years ago
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