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3 years ago

You measure the sides of a pool and find that it is 20 yards wide and 60 yards long.

Mathematics

2 answers:

Burka [1]3 years ago

5 0

It would be 63 diagonally between corners of the pool.

iren2701 [21]3 years ago

4 0

Answer:

63 yards

Step-by-step explanation:

Based on the description, you can make a rectangle with the sides 20 yards and 60 yards. You then draw a diagonal line (doesn't matter which one), and you use the pythagorean theorem (a^2+b^2=c^2). Thus, you get 20^2+60^2=60^2, so 400+3600=c^2, then \sqrt{4000}

Which gives the value of 63.24 rounding to 63 yards

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Ivan finished Four-fifths of his math homework problems and all 3 problems for his science homework before dinner. If he finishe

valentinak56 [21]

Answer:

Step-by-step explanation:

Since we know that Ivan finished all his science problems (3) we know that there are only math problems remaining

substract the science problems from the total 43-3=40

And now we can determine the amount of math problems

4/5 = 40/x where x is the total amount of math problems Ivan was assigned

cross multiply

4x = 5*40

4x=200

isolate the variable

4x/4 = 200/4

x=50

So Ivan was assigned a total of 50 math problems

(Note*) since there are 40 math problems finished 40/50 is equal to 4/5. Just a tip if you don't want to do the whole calculation

Hope this helps!

3 0

2 years ago

Rosie did the following problem. (7-1) 2 ÷ 6 + 4 · 3 6 2 ÷ 6 + 4 · 3 36 ÷ 6 + 4 · 3 6 + 4 · 3 10 · 3 30 Which statement best des

Travka [436]

Answer: Rosie is incorrect because she needs to do the exponent before subtracting.

4 0

2 years ago

-what is the answer<br>

faust18 [17]

Answer:

answer

Step-by-step explanation:

4 0

2 years ago

X = 8,1,3,3,5

Ghella [55]

Answer:

2.600 = Exact

2.6 = Base Form

Step-by-step explanation:

6 0

2 years ago

12) The school that Danielle goes to is selling tickets to a choral performance. On the first day of

kicyunya [14]

Answer:

Senior citizen tickets = $9

Student tickets = $11

Step-by-step explanation:

We begin by converting these into simultaneous linear equation;

Senior citizen tickets = a

Student tickets = b

5a + 9b = 144

14a + 6b = 192

5a = 144 - 9b

a = 144/5 - 9b/5

a = 28.8 - 1.8b

We now substitute this into the first equation

14(28.8 - 1.8b) + 6b = 192

403.2 - 25.2b +6b = 192

-19.2b = 192 - 403.2

b = -211.2/-19.2

b = 11

Put the value of b into either equation

5a + 9b = 144

5a + 9(11) = 144

5a +99 = 144

5a = 144-99

5a = 45

a = 9

6 0

2 years ago