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Vilka [71]
2 years ago
15

Lisa drove 80 miles, then increased her speed by 20 miles per hour for 180 miles. If the second part of the drive took 1 hour lo

nger than the first part, find her average speed.
a.65 miles/hr
b.43.3 miles/hr
c.52 miles/hr
d.50 miles/hr
e.The correct solution is not shown.
Mathematics
1 answer:
hjlf2 years ago
8 0
E is the correct solution
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I need helppp on my test and i can't get it wrongggg
Artyom0805 [142]

Answer:

Perimeter = 16x + 16

Area = 40x + 15

Step-by-step explanation:

Perimeter = the sum of all the side lengths

Perimeter = 2(8x+3) + 2(5) = 16x + 6 + 10 = 16x + 16

Area = product of base times height

Area = (8x+3)*5 = 40x + 15

6 0
3 years ago
Kendall surveyed the students at her school to find out if they like horror movies and/or animated movies. the table below shows
zzz [600]
                                         like horror movies        hate horror movies     total
like animated                              21                                 22                       43
doesn't like animated                 56                                  3                        59
total                                             77                                  25                      102

if a student likes horror movies (there are 77 of them)...what is the probability that student also like animated movies.....21/77 or 27%
7 0
3 years ago
Read 2 more answers
An investment that you bought for __________ and sold for __________ made a profit. A. $1250; $1500 B. $1250; $1000 C. $1500; $1
coldgirl [10]
A. $1250; $1500 because if you bought something for $1250 and sold it for $1500 you would be gaining $250
3 0
3 years ago
Geophysicists determine the age of a zircon by counting the number ofuranium fission tracks on a polished surface. A particular
Aliun [14]

Answer:

p(x = 3, λ = 5) = 0.14044

Step-by-step explanation:

Given

λ = 5 (the average number of tracks per square centimeter)

ε = 2.718 (constant value)

x = 3 (the variable that denotes the number of successes that we want to occur)

p(x,λ) = probability of x successes, when the average number of occurrences of them is λ

We can use the equation

p(x,λ) = λˣ*ε∧(-λ)/x!

⇒ p(x = 3, λ = 5) = (5)³*(2.718)⁻⁵/3!

⇒ p(x = 3, λ = 5) = 0.14044

7 0
3 years ago
Read 2 more answers
41- 3/4 x &lt; 53<br><br> please help!
sweet [91]

Answer:

x > - 16

Step-by-step explanation:

41- 3/4 x < 53

Subtract 41 from each side

41-41- 3/4 x < 53-41

-3/4x < 12

Multiply each side by -4/3, remembering to flip the inequality

-4/3 * -3/4x > 12 * -4/3

x > - 16

8 0
3 years ago
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