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Greeley [361]
3 years ago
8

John has $55. He buy 6 books. Each book cost the same amount . He now has 10

Mathematics
2 answers:
Julli [10]3 years ago
8 0

Answer:Answer: $7.50

Step-by-step explanation:

$55-$10=$45  45/6=7.5

Step-by-step explanation:

amid [387]3 years ago
8 0

Answer:

7.5$ per book

Step-by-step explanation:

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Solve pls brainlies
MrRa [10]

Answer:

2) 11

3) 21

4) 7

Step-by-step explanation:

2) (-6) -(-17) = 17 - 6 = 11

3) 19 - (-2) = 19 + 2 = 21

4) (-13) + 20 = 20 - 13 = 7

6 0
3 years ago
Determine if events A and B are mutually exclusive.
gladu [14]

Answer:

A) Not mutually exclusive

Step-by-step explanation:

Given

P(A) = \frac{1}{4}

P(B) = \frac{3}{5}

P(A\ or\ B) = \frac{7}{10}

Required

Determine if they are mutually exclusive or not

Mutually exclusive are defined by:

P(A\ or\ B) = P(A) + P(B)

So, we have:

P(A\ or\ B) = \frac{1}{4} + \frac{3}{5}

Take LCM

P(A\ or\ B) = \frac{5+12}{20}

P(A\ or\ B) = \frac{17}{20}

By comparing:

P(A\ or\ B) = \frac{17}{20} ---- Calculated

P(A\ or\ B) = \frac{7}{10} ---- Given

We can conclude that A and B are not mutually exclusive because:

\frac{17}{20} \ne \frac{7}{10}

6 0
3 years ago
If 2^5 x 5^2 = 2^n x 10^2, what is the value of n?
Marat540 [252]

Answer: x = 0

Step-by-step explanation:

Move all terms to the left side and set equal to zero. Then set each factor equal to zero.

7 0
3 years ago
Solve for x.<br><br> 7 - (2x + 11) + 3(3 - x) = 20
zvonat [6]

Answer:

your answer should be x = -3

7 0
3 years ago
Read 2 more answers
Umm.. Hi there! Can someone please help me out with this? (only for those who know the answer)
nignag [31]

Answer:

The Exterior Angle of triangle LDR is angle d. The Remote Interior Angles are a and b.

The Exterior Angle of triangle PDR is angle 4. The Remote Interior Angles are angles 1 and 2

Explanation:

<u>Interior angles</u> are the angles that are inside the shape. The <u>remote interior angles</u> would be the 2 angles away from the exterior angle.

The <u>exterior angle</u> is the angle, made by the side of the shape and a line drawn out from an adjacent side.

I hope this helps!

6 0
3 years ago
Read 2 more answers
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