1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Arturiano [62]
3 years ago
8

A train traveled at 62 miles per hour for 7.5 hours. How far did the train travel in 7.5 hours? Use the formula D = r x t

Mathematics
2 answers:
Aleksandr-060686 [28]3 years ago
4 0

Answer:

465 miles

Step-by-step explanation:

D = r * t

D = 62 * 7.5 = 465 miles

mr_godi [17]3 years ago
3 0

Answer:

465

Step-by-step explanation:

We know that the rate is 62 mph. The time is 7.5 h.

Plug it into the existing equation:

<em>D = r × t</em> becomes <em>D = </em><em>62</em><em> × </em><em>7.5</em>

Just stick that into a calculator to get 465.

<em />

You might be interested in
Help me with this pls for 10 point and bright if right
enyata [817]

Step-by-step explanation:

help with what , you didnt attach anything ?

8 0
3 years ago
Read 2 more answers
While building a snowman, a large snowball is created so that the radius is changing at the rate of 5 inches per hour. How fast
diamong [38]

Answer:

2000π in³/s

or 6283.2 in³/s

Step-by-step explanation:

dr/dt = 5  

volume of sphere is given as

v = (4/3)(π)r³

differentitate wrt r

dv/dr = 3×4/3 ×π×r²

dv/dr = 4πr²

put r = 10

dv/dr = 4π(10)²

dv/dr = 400π

by chain rule

dv/dt = dv/dr ×dr/dt

dv/dt = 400π× 5

dv/dt = 2000π in³/s

or dv/dt =6283.2 in³/s

7 0
3 years ago
The volume of a cylinder is 540π ft3. The height is 15 ft. What is the diameter of the cylinder?
Nonamiya [84]
D = 2r

V = A*h

540π = πr²*h

540 = (d/2)²*15

540 = d²/4*15

540*4 = 15d²

d² = 2160 / 15

d² = 144

d = √144

d = 12 ft
3 0
3 years ago
Read 2 more answers
What is the value of the expression, written in standard form?
Studentka2010 [4]

Answer:

The value of the expression = 200

Step-by-step explanation:

The given expression  is \frac{6.6 * 10^{-2}}{3.3*10^{-4}}

Using the low of exponent x^{a} /x^{b}  = x^{a-b}

So, the expression  =

\frac{6.6 * 10^{-2}}{3.3*10^{-4}} = \frac{6.6}{3.3} * 10^{-2 -(-4)} = 2 * 10^{2} = 2*100=200

<u>So, The value of the expression = 200</u>

5 0
3 years ago
Read 2 more answers
Big chickens: According to a poultry industry news website, the weights of broilers (commercially raised chickens) are approxima
PtichkaEL [24]

Answer:  Yes , it is unusual for a boiler to weigh more than 1550 grams .

Step-by-step explanation:

Given : Big chickens: According to a poultry industry news website, the weights of broilers (commercially raised chickens) are approximately normally distributed with mean(\mu) 1358 grams and standard deviation(\sigma) 161 grams.

When the probability that broiler weigh more than 1550 grams < 0.5 , then is unusual otherwise not.

Let x denotes the weight of broiler, then the probability that broiler weigh more than 1550 grams :-

P(x>1550)=1-P(x\leq1550)\\\\=1-P(\dfrac{x-\mu}{\sigma}\leq\dfrac{1550-1358}{161})\\\\\approx 1-P(z\leq1.19)\ \ [\because\ z=\dfrac{x-\mu}{\sigma}]\\\\=\\\\=1-0.8830\ \ [\text{By using z-table}]\\\\=0.117  

Since 0.117<0.5

Therefore, it is unusual for a boiler to weigh more than 1550 grams .

6 0
4 years ago
Other questions:
  • I need the equation for both options
    5·1 answer
  • Pls tell me I need to know
    13·2 answers
  • (Problem on image.)...
    15·1 answer
  • What is a radian????
    10·2 answers
  • A right-angled triangle has sides of lengths (x + 5) cm, (x - 3) cm and 9 cm.
    14·1 answer
  • There are 10 red counters and x blue counters in a bag. 2 counters are removed fron the bag. the probability that both counters
    10·1 answer
  • What is the vertex<br> x-intercept &amp;<br> y-intercept
    8·1 answer
  • Given C(4, 3) and D(-4, -3) are two points on a circle, centered at the origin. Given
    7·1 answer
  • Emily wanted to make shish kabobs for a barbecue she was having for her swim party. The bag she purchased from the grocery store
    7·1 answer
  • 15 COINS!!! Simplify the expression below using the distributive property.<br><br> 3 (9 + 7)
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!