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polet [3.4K]
3 years ago
9

Suppose to travel 162 miles in 3 hours .use the formula d=st to find the average speed

Mathematics
2 answers:
Umnica [9.8K]3 years ago
6 0

Distance = Speed x time = 162 x 3 = 486 miles/hour



Answer: 486 miles/hour

Vladimir79 [104]3 years ago
4 0

Reduce:


162 miles

--------------- = 54 mph

3 hrs


If we start with distance = rate times time, we can solve for rate:


rate = distance / time. That's what I've just done (above).


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Paladinen [302]

A turtle walks 7/8 mile in 50 minutes.

Convert 1 hour to minutes and you get 60 minutes.

50/60 = 5/6. The turtle walks 7/8 mile in 5/6 hour

\frac{\frac{7}{8} }{\frac{5}{6} } = 21/20

The turtle walks 21/20 or 1.05 miles per hour.

6 0
3 years ago
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The total body surface area, or BSA, of a human is difficult to calculate. There are various models that estimate BSA based on a
FromTheMoon [43]

Answer:

173 cm

105 kg

Step-by-step explanation:

Given :

BSA= √wh /3600

where w = weight in kg and h = height in cm.

A.)

w = 75 kg ; BSA = 1.9 ; h =?

BSA= √wh /3600

1.9 = √75h /3600

Take the square of both sides

1.9² = 75h /3600

1.9² * 3600 = 75h

12996 = 75h

h = 12996 / 75

h = 173.28 cm

h = 173 cm

B.)

h = 166 ; BSA = 2.2

BSA= √wh /3600

2.2 = √w166 /3600

Take the square of both sides

2.2² = 166w /3600

2.2² * 3600 = 166w

17424 = 166w

w = 17424 / 166

w = 104.96 kg

w = 105 kg

7 0
3 years ago
Estimate 874,238 – 228,759 using front-end estimation.
Vikki [24]

i believe it is 645, 500 !

4 0
3 years ago
The vertices of an isosceles triangle are a(3, 6), b(7, 2), and c(4, 3). what is the equation of the triangle's line of symmetry
Paul [167]

Based on the calculations, the equation of the triangle's line of symmetry is equal to: B. y = x - 1.

<h3>How to determine the equation of the triangle's line of symmetry?</h3>

First of all, we would determine the midpoint where the line of symmetry passes through points A and B:

Midpoint at point A = (3 + 7)/2 = 10/2 = 5.

Midpoint at point B = (6 + 2)/2 = 8/2 = 4.

Point D = (5, 4)

Mathematically, the standard equation of a line is given by y = ax + b.

D(5, 4); 4 = 5a + b   ....equation 1.

C(4, 3); 3 = 4a + b    ....equation 2.

Subtracting eqn. 2 from eqn. 1, we have:

1 = a

Next, we would find the value of b:

4 = 5a + b

4 = 5(1) + b

b = 4 - 5

b = -1.

Therefore, the equation of the triangle's line of symmetry is given by:

y = ax + b

y = x(1) + (-1)

y = x - 1.

Read more on line of symmetry here: brainly.com/question/10152876

#SPJ1

5 0
2 years ago
What are the solution(s) of the quadratic equation 98 - x2 = 0?
d1i1m1o1n [39]

Answer:

Exact form: x = + 7 sqaureroot 2

Decimal Form: x = 9.89

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