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olchik [2.2K]
3 years ago
9

a caravan crossed 1378 miles of desert in 85 days it traveled 22 miles the first day and 28 the second day if caravan traveled t

he same number of miles on the remaining days how many miles did it travel on each of those days
Mathematics
2 answers:
Ugo [173]3 years ago
8 0

Answer:

16 miles

Step-by-step explanation:

Number of days 83

83 divided by 1378 is 16

Ronch [10]3 years ago
7 0
Dist. travelled for the first 2 days
= 22 + 28
= 50

Dist. travelled for the remaining 83 days
= 1378 - 50
= 1328

Dist. travelled for EACH of the 83 days
= 1328 ÷ 83
= 16
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The equation x2 − 9 = 0 has real solution(s).
tatiyna

Answer:

The roots are real and unequal (3, -3)

Step-by-step explanation:

x²-9=0

ax²+bx+c=0

Comparing we get,

a= 1

b= 0

c = -9

Determinant: b²-4ac

= 0² - 4(1)(-9)

= 36>0

D > 0

Therefore, the equation has real and unequal roots.

Algebraic identity:

x² - a² = (x-a)(x+a)

Using this identity

x²-9 = (x+3)(x-3)

Roots are 3 and -3 which are real and not equal to each other

Hope this answer helps you ..

6 0
3 years ago
Read 2 more answers
Which of the following is the best approximation of the volume of a sphere with a 9 cm radius?
LenaWriter [7]
Volume = 4/3 * PI * r^3
Volume = 4/3 * 3.14159 * 9^3
Volume = <span> <span> <span> 4.18879 * 729
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5 0
3 years ago
Your math teacher tells you that the next test is worth 100 points and contains 38 problems. Multiple choice questions are worth
Westkost [7]

eight 5 and thirty 2

Step-by-step explanation:

8 times 5 = 40 and then 30 times 2 = 60

40+60= 100

4 0
3 years ago
Blain is two years older than three times Jillians age. Jillian is also 16 years younger than Blain. How old is Blain?
Ipatiy [6.2K]

The age of Blain is 23 years old

<h3><u>Solution:</u></h3>

Let the age of Blain be "a" and age of Jillian be "b"

Given that Blain is two years older than three times Jillians age

So we can frame a equation as:

age of blain = 2 + 3(age of Jillian)

a = 2 + 3b ----- eqn 1

Also given that Jillian is also 16 years younger than Blain

Age of Jillain = Age of Blain - 16

b = a - 16 ---- eqn 2

Substitute eqn 2 in eqn 1

a = 2 + 3(a - 16)

a = 2 + 3a - 48

a - 3a = -46

-2a = -46

a = 23

Thus the age of Blain is 23 years old

4 0
3 years ago
Multiply 6x+3=3(2x+3)​
sattari [20]

Answer:

When the distributive property is used on the right side of the equation:

6x + 3 = 6x + 9

**If you wanted to go further by combining like terms, there would no longer be an "x" and all that would be left is 6 or -6, depending on how you combined them**

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3 years ago
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