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motikmotik
3 years ago
7

A tree casts a shadow that is 8 feet long, a 3 foot mailbox cast a shadow that is 5 feet long. how tall is the tree?

Mathematics
1 answer:
madam [21]3 years ago
7 0
Set up two fractions:
8/x and 3/5
Set them equal to each other and cross multiply to get:
8*5 = 3x
40 = 3x
13.3 = x or 13 and 1/3 feet tall. 
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Mrs. Flynn baked 6 more cookies than Mrs. Jones did. If together they baked 42 cookies, how many did Mrs. Jones bake?
galben [10]

Answer:

Mrs. Jones baked 18 cookies

Mrs. Flynn baked 24 cookies

Step-by-step explanation:

42-6=36(to find 2x the number mrs jones baked)

36/2=18(how cookies baked by mrs jones)

18+6=24(how many mrs flynn baked)

8 0
2 years ago
Plz help me with this
Mrac [35]
4/5*3/7=a
a=12/35
12/35 square units
6 0
2 years ago
Read 2 more answers
Please Help- <br> K + ⅓ = 5 ⅛ | K = ?<br> Show Your Reasoning.
blondinia [14]

Answer:

4\frac{19}{24}

Step-by-step explanation:

I hope I did this right:

So first thing to do is set up the equation.

K + \frac{1}{3} = 5\frac{1}{8}

Next thing to to is subtract 1/3 from both sides to get:

K = 5\frac{1}{8} - \frac{1}{3}

Next up, you will multiply each of the fractions by the opposing value

(multiply 1/8 by 3 and 1/3 by 8)

K = 5\frac{3}{24}-\frac{8}{24}

Alright almost done, by multiplying 24 by 5 you get 120, that will go in the numerator to make the math a lot easier.

K = \frac{123}{24}-\frac{8}{24}

Finally, you subtract 123 over 24 by 8 over 24.

K = \frac{123}{24} - \frac{8}{24} = \frac{115}{24}

Then just simplfy the 115/24 to get

4\frac{19}{24}

8 0
2 years ago
Pls help this is a grade?!?!?!?
maksim [4K]
Net 2....................
5 0
2 years ago
Read 2 more answers
Brand X costs $2.70 for 10 ounces. Brand Y costs 4 cents more per ounces. What is the cost of 11 ounces of brand Y?
Ksju [112]
Well you have to first find the constant of Brand X which would be 2.70/10 = .27. Brand Y is .4 more so that would be .31 per ounce. So then .31 x 11 = 3.41. The cost of 11 ounces of brand Y is $3.41.
8 0
2 years ago
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