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igomit [66]
2 years ago
3

At woodridge middle school 30% of the teachers are male. If 21 teachers are male how many total teacher are at the school

Mathematics
1 answer:
Reika [66]2 years ago
6 0
70 teachers are at the school
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In 1895, a brick arch railway bridge was built on North Avenue in Baltimore, Maryland. The arch is described by the equation h =
DerKrebs [107]

Answer:

21.213

or

(21.213,0)

Step-by-step explanation:

y-intercept = 9

slope= -1/50x^2

I graphed it and it was a parabola and it hit the ground at this coordinate (21.213,0)

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2 years ago
Anna wants to take fitness classes. She compares two gyms to determine which would be the best deal for her. Fit Fast charges a
steposvetlana [31]
This is sort of weird to write without any numbers, but it's not too hard. take your info out of the word problem:

fit fast = fee per class
stepping up = fee per class + monthly fee

now you just change all of that into variables, essentially:

F = cx
S = cx + m

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2 years ago
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Given: EFGH inscribed in k(O) m∠FHE = 45°, m∠EGH = 49° Find: m∠FEH
hodyreva [135]

Answer:

m

Step-by-step explanation:

we know that

The inscribed angle measures half that of the arc comprising

step 1

Find the measure of arc EF

m

we have

m

substitute

45\°=\frac{1}{2}(arc\ EF)

arc\ EF=90\°

step 2

Find the measure of arc EH

m

we have

m

substitute

49\°=\frac{1}{2}(arc\ EH)

arc\ EH=98\°

step 3

Find the measure of arc FGH

arc\ FGH=360\°-(arc\ EH+arc\ EF)

substitute the values

arc\ FGH=360\°-(98\°+90\°)

arc\ FGH=172\°

step 4

Find the measure of angle FEH

m

we have

arc\ FGH=172\°

substitute

m

7 0
2 years ago
Kat has 19 coins, all quarters and dimes, that are worth a total of $4. The system of equations that can be used to find the num
lorasvet [3.4K]
Since q+d=19, we can re-write this as d=19-q. Using the second equation 0.25q+0.1d=4 we can multiply both sides by 100. So we get 25q+10d=400. So now we can plug d=19-q into 25q+10d=400. So now we get, 25q+190-10q=400. Subtracting both sides by 190, we get 15q=210 and that q=14 plugging that in d=5
3 0
2 years ago
Edward deposited $6,000 into a savings account 4 years ago. The simple interest rate is 3%. How much money did Edward earn in in
GaryK [48]
Hello IdontKnowHowToMath,

first, converting R percent to r a decimal
r = R/100 = 3%/100 = 0.03 per year.

Solving our equation:
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A = $6,720.00

The total amount accrued, principal plus interest, from simple interest on a principal of $6,000.00 at a rate of 3% per year for 4 years is $6,720.00.
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2 years ago
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