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Anastaziya [24]
3 years ago
11

I don't remember how to do this

Mathematics
1 answer:
meriva3 years ago
4 0
B. Fractions have to have the same denominator so \frac{9}{10}  -  \frac{2}{5} =  \frac{9}{10} -  \frac{4}{10} which = \frac{5}{10} then you simplfy it to \frac{1}{2} so it would be B
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Delia measured a doorway to be 1 meter wide. Which of these is a nearly equivalent measurement
shepuryov [24]
The answer to this is a conversion of 1 meter to feet which is about 3.3 ft
7 0
4 years ago
8) Use the slope formula to find the slope between<br> the points: (-1,2) and (3,- 3)<br> m =
nikdorinn [45]

Answer:

-5/4

Step-by-step explanation:

We can use the slope formula to find the slope

m = ( y2-y1)/(x2-x1)

   = ( -3 -2)/( 3 - -1)

   = ( -3-2 ) /( 3+1)

   = -5/4

3 0
3 years ago
Read 2 more answers
Please help I’m stuck on this problem
iren2701 [21]

Answer:

2 pairs

Step-by-step explanation:

Each pair is 60$ and he has 150$

so 150 divided by 60 equals 2.5

4 0
3 years ago
Read 2 more answers
Glass bottles are worth 10 cents and aluminum cans are worth 5 cents. If Joe returns 12 glass bottles and 48 aluminum cans, how
dusya [7]

Answer: The answer is 3.60 dollars.

Step-by-step explanation:

1 bottle = 10 cents

12 bottles = 120 cents

100 cents = 1 dollar

1 cent = 1/100

120 = 1/100 * 120 = 1.2 dollars

now

1 aluminium can = 5 cents

48 cans = 5*48 = 240 cents

240 cents = 1/100 * 240 = 2.4 dollars

so total = (1.2+2.4) dollars

= 3.6 dollars

5 0
3 years ago
A young Witch flew her broom 48 miles form her home to a witch festival. Flying with the wind, the trip took 3 hours. Her flight
vekshin1

Using the relation between velocity, distance and time, it is found that:

  • The speed of the wind is of 2 mph.
  • The speed of the broom is of 14 mph.

<h3>What is the relation between velocity, distance and time?</h3>


Velocity is <u>distance divided by time</u>, hence:

v = \frac{d}{t}

Flying with the wind, in which v = v_b + v_w the 48-mile trip took 3 hours, hence:

v = \frac{d}{t}

v_b + v_w = \frac{48}{3}

v_b + v_w = 16

Her flight home against the wind took 4 fours, hence:

v = \frac{d}{t}

v_b - v_w = \frac{48}{4}

v_b - v_w = 12

Adding the two equations:

2v_b = 28

v_b = 14

v_b + v_w = 16 \rightarrow v_w = 2

Hence:

  • The speed of the wind is of 2 mph.
  • The speed of the broom is of 14 mph.

More can be learned about the relation between velocity, distance and time at brainly.com/question/24316569

4 0
3 years ago
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