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prisoha [69]
3 years ago
10

Given the following expression. 2 1/4 - (-3 2/5) A. Rewrite the expression using addition. B. Evaluate the expression.

Mathematics
1 answer:
prisoha [69]3 years ago
8 0

Answer:

A. 2 1/4 + 3 2/5

B. 113/20

Step-by-step explanation: For A: All you had to do was multiply -1(-3 2/5) and that was going to make your answer positive because the negatives were going to cancel each other out.

For B: First you had to make your fractions improper fractions instead of mixed numbers. And that would make it 9/4 + 17/5. Next, since they don't have the same denominator, you would have had to find the least common multiple of 5 and 4 which is 20. So then how ever many times your denominator went in to 20, that's what you'll multiply your numerator by. 45/20 + 68/20= 113/20

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What is the answer??
LekaFEV [45]

Answer:

3 1/5 (or 3.5)

Step-by-step explanation:

2(7) - 7(-1)

_______

7 + -1

Next:

14 + 7 (two negatives make a positive)

_____

6

Next:

21/6 which equals 3 1/2 (3.5)

7 0
3 years ago
Find the fifth term of a sequence whose first term is 8 and common ratio is 3/2
Arlecino [84]

Answer:

Option c. 81/2

Step-by-step explanation:

Fifth term: a5=?

First term: a1=8

Common ratio: r=3/2

an=a1*r^(n-1)

with n=5

a5=a1*r^(5-1)

a5=a1*r^4

Replacing the known values:

a5=8*(3/2)^4

a5=8*(3)^4/(2)^4

a5=8*81/16

Simplifying: Dividing the numerator and denominator by 8:

a5=(8*81/8)/(16/8)

a5=81/2

Answer: Option c. 81/2

3 0
3 years ago
A neighborhood garden is 3/4 acre in size. It is divided into plots that are each 1/8 acre. How many 1/8-acre plots are there in
icang [17]

Answer:A

Step-by-step explanation:The answer is A because if you divide the numbers equally, then you will get 1

5 0
3 years ago
Toni can carry up to 16 lb in her backpack. Her lunch weighs 1 lb, her gym clothes weigh 3 lb, and her books (b) weigh 3 lb each
Romashka-Z-Leto [24]

Answer:

4 Books

Step-by-step explanation:

3+1 = 4

16 - 4 = 12

3x4 = 12

6 0
3 years ago
Simplify <br> 2/5(a+b)+3/5(a+c)
Sergeu [11.5K]
Distribute 2/5 and 3/5 into the ():
2/5(a+b)+3/5(a+c)

2/5 a+ 2/5 b+3/5 a+ 3/5 c

combine the like terms:
2/5 a+3/5 a= 5/5 a --> 1a --> a

new simplified equation:
a+2/5 b+3/5 c
3 0
3 years ago
Read 2 more answers
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