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9966 [12]
3 years ago
9

On a map of North America, the scale is:

Mathematics
1 answer:
Zolol [24]3 years ago
4 0
The scale factor as I understand it will just be 1 to 30, inches to miles.

however, in this case it seems to be suggesting a conversion to the same unit, say hmmm let's convert the miles to inches.

\bf 30~\underline{mi}\cdot \cfrac{5280~\underline{ft}}{\underline{mi}}\cdot \cfrac{12~in}{\underline{ft}}\implies \cfrac{30\cdot 5280\cdot 12~in}{1}\implies 1900800~in\\\\
-------------------------------\\\\
\stackrel{in}{1}:\stackrel{mi}{30}\implies \stackrel{in}{1}:\stackrel{in}{1900800}
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A price was first decreased by 12%, then it was decreased again by an additional 5%. What is the percent of the total decrease?
algol [13]
I'm not sure but it might be -117%.
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3 years ago
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lamar had 2/5 of land. he planted 2/3 of this land with corn. how many acres did he plant with corn? answer in the simplest form
tekilochka [14]
The answer is 2.5 I think not sure
8 0
3 years ago
Solve for a: 5(a+5)-3=3(2-a)
ivann1987 [24]

Simplify:

5(a + 5) + -3 = 3(2 + -1a)

Reorder the terms:

5(5 + a) + -3 = 3(2 + -1a)

(5 * 5 + a * 5) + -3 = 3(2 + -1a)

(25 + 5a) + -3 = 3(2 + -1a)

Reorder the terms again:

25 + -3 + 5a = 3(2 + -1a)

Combine like terms:

]25 + -3 = 22

22 + 5a = 3(2 + -1a)

22 + 5a = (2 * 3 + -1a * 3)

22 + 5a = (6 + -3a)

Solve:

22 + 5a = 6 + -3a

To solve for variable 'a':

You have to move all terms containing A to the left, all other terms to the right.

Then add '3a' to each side of the equation:

22 + 5a + 3a = 6 + -3a + 3a

Combine like terms:

5a + 3a = 8a

22 + 8a = 6 + -3a + 3a

Combine like terms again:

-3a + 3a = 0

22 + 8a = 6 + 0

22 + 8a = 6

Add '-22' to each side of the equation.:

22 + -22 + 8a = 6 + -22

Combine like terms:

22 + -22 = 0

0 + 8a = 6 + -22

8a = 6 + -22

Combine like terms once more:

6 + -22 = -16

8a = -16

Divide each side by '8'.

a = -2

Simplify:

a = -2

Answer: a=-2

Hope I could help! :)

8 0
3 years ago
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Answer:9 ounces

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So first you want to start off with what you know

2/9 of a swerving is 2 ounces of pasta

Which aslo lets you know 1/9 of a serving = 1 ounce of pasta

Since 1/9 of a serving is 1 ounce you want to times that by 9 to get a whole serving

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3 0
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Please help I need this
sveticcg [70]

Answer:

i think q no 2 3-5i

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