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3 years ago

Tasha claims that her skateboard weighs about 3 pounds. is Tasha's claim reasonable? Explain

2 answers:

8 0

Yes, It would be reasonable since thats about the weight of a skateboard.
However, the average skateboard is closer to 6 pounds. So, the skateboard in the question is very possible- but it would be really low quality.

However- given that you are in middle school- I would say yes, it is reasonable.

Studentka2010 [4]3 years ago

4 0

Yes but it is kinda small but i guess if she is younger the it would be ok. and also the material because wood would most likely break well at least if she was heavy.

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Annabelle the ant and Archibald the ant are on a large coordinate grid. Annabelle is at (3,4) and Archibald is at (33,44). If bo

kvasek [131]

Part a) If both ants skate directly towards each other, starting at the same time and skating the same speed, what will be the coordinates of their meeting place?

Let

A(3,4) B(33.44)

we know that

If both ants skate directly towards each other, starting at the same time and skating the same speed

then

the coordinates of their meeting place is the midpoint AB

Find the midpoint AB

in the x-coordinate

(3+33)/2=18

in the y-coordinate

(4+44)/2=24

the midpoint AB is (18,24)

therefore

the answer Part a) is

the coordinates of their meeting place is (18,24)

Part b) How far will each ant skate?

Find the distance AB

$d=\sqrt{(x2-x1)^{2}+(y2-y1)^{2}}$

substitute the values

$dAB=\sqrt{(33-3)^{2}+(44-4)^{2}}$

$dAB=\sqrt{2,500}$ units

$dAB=50$ units

Find the half distance AB

50/2=25 units

therefore

the answer part b) is

Each ant will skate 25 units

7 0

3 years ago

The Target heart rate for fit person of age a exercising at p percent of his or her heart rate is determined by the expression 1

natita [175]

Answer: 9p - 1.5a

Step-by-step explanation:

Your maximum heart rate is about 220 minus your age. But it varies base on age category.

Target heart rate during moderate intensity activities is about 50-70% of maximum heart rate.

According to the question;

Target heart rate for

women = 1/2p(418-4a)

= 209p - 2a ....... (1)

men = 1/2p(400-a)

= 200p - 0.5a .......(2)

To find the difference between the target heart rates for a fit woman and a fit man, take equation 1 from equation 2

(209p - 2a) - (200p - 0.5a)

209p - 2a - 200p + 0.5a

9p -1.5a

7 0

3 years ago

Write the series using summation notation. −3+4−5+6−7

Genrish500 [490]

-3+4=1 and 1 -5= -4, -4+6=2 AND 2-7=-5 Answer =-5

8 0

2 years ago

Nisha and Lee Nguyen are purchasing a new home with monthly mortgage payments of $740.16. Their annual property taxes are estima

Setler79 [48]

Answer:

6787.8

explanation:

740.16 + 3047.16 + 2149.76 + 850.72 = 6787.8

i dont actually know if this is it so sorry if not

5 0

2 years ago

Mary spends no more than 21 hours a week doing homework. If she spends 2/7 of the time doing her math homework, what other fract

True [87]

Answer:

6/21, 12/42

Step-by-step explanation:

Mary spends no more than 21 hours a week doing homework. If she spends 2/7 of the time doing her math homework.

The number of hours she spends doing her maths homework is calculated as:

= 2/7 × 21

= 6 hours

The other fractions that could represent the amount of time Mary spends doing her math homework is given as:

6 hours/21 hours = 6/21

Also , that could be represented as:

12/42

Therefore, the other fractions that could represent the amount of time Mary spends doing her math homework is : 6/21 , 12/42

5 0

3 years ago