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IgorC [24]
3 years ago
7

Jennifer had a7/8-foot board. she cut off a 1/4-foot piece that was for a project. in feet, how much of the board was left?

Mathematics
1 answer:
den301095 [7]3 years ago
8 0
7/8 - 1/4 = ?  (we need common denominators to add)
7/8 - 2/8 (multiplied second fraction by 2/2 to get a common denominator)

5/8 answer
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7,6490035 to the nearest thousandth
QveST [7]

Answer:

76,490,035.000 rounded to 3dp

Step-by-step explanation:

6 0
3 years ago
It takes a plane 3.5 hours to fly 2,345 miles and 2 hours to fly 860 miles
Ilya [14]

Answer:

See below

Step-by-step explanation:

a. How fast does the plane fly during the first leg of the trip?

  • 2345/3.5 = 670 mph

b. How fast does the plane fly during the last leg of the trip?

  • 860/2 = 430 mph

c. What system of equations might be helpful in this scenario?

<u>s - speed of the plane, w - speed of the wind, equations:</u>

  • s + w = 670
  • s - w = 430

d. Solve this system of equations using the best method.

Add the equation together to get:

  • 2s = 1100 ⇒ s = 550 mph
  • w = 550 - 430 = 120 mph

e. How fast is the wind?

  • 120 mph as solved above

f. How fast does the plane fly without any wind?

  • 550 mph as solved above
3 0
3 years ago
Read 2 more answers
PLEASE HELP ME!<br> Find m∠FEC.<br><br> Answer Options:<br> A. 69<br> B. 50<br> C. 57<br> D. 37
Anna35 [415]

Answer:

Option (A)

Step-by-step explanation:

Measure of an angle formed between a chord and a secant is equal to the half of the difference of the intercepted arcs.

m(∠FEC) = \frac{1}{2}[m(\text{arc FC})-m(\text{arc})FD]

(15 + 6x)° = \frac{1}{2}[(24x - 6)^{\circ}-(9+7x)^{\circ}]

30 + 12x = (24x - 7x) - (6 + 9)

30 + 12x = 17x - 15

17x - 12x = 30 + 15

5x = 45

x = 9

m(∠FED) = (15 + 6x)

               = 15 + 6(9)  

               = 69°

Option (A) will be the correct option.

7 0
2 years ago
Select the correct answer.
Flura [38]
The answer is B good luck bro
4 0
3 years ago
What is the value of the 8 in the number 2.387
tamaranim1 [39]

Answer:

Step-by-step explanation:

If the point represents decimal, the position of number 8 is  

hundredth.

But if  represents Thousands the position of number 8  is  

tens

6 0
3 years ago
Read 2 more answers
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