Answer:
3 8/33
Step-by-step explanation:
522 − 482 = (52 + 48)(52 − 48) = (100)(4) = 400
522 − 482 = 2704 − 2304 = 400
522 − 482 = (52 − 48)2 = (4)2 = 16
The optionsecond 52² − 48² = (52 + 48)(52 − 48) = (100)(4) = 400 is the correct.
It is defined as the operation in which we do the addition of numbers, subtraction, multiplication, and division. It has a basic four operators that is +, -, ×, and ÷.
We know,
a² - b² = (a + b)(a - b)
We have:
= 52² − 48²
After using the above identity, we get:
= (52 + 48)(52 - 48)
= (100)(4)
= 400
Thus, the optionsecond 52² − 48² = (52 + 48)(52 − 48) = (100)(4) = 400 is the correct.
Learn more about the arithmetic operation here:
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o 1 pencil : 2 pens
o 2 pencils : 4 pens
o 2 pencils : 1 pen
Answer:1:2
Step-by-step explanation:22 is for the pencil and 44 is for the pen. So 22 will cancel its self 1 and will cancel 44 two times
Answer:
7
Step-by-step explanation:
Two negatives cancel out, so you divide just like normal 42÷6 is 7
The quotient is 7 (not negative as two negative numbers will cancel)
Answer:
Lets break this down:
6+(6-2)x6=
You do the parenthesis first, as accorded to the order of operations:
6+(4)x6=
To solve this problem, now that we have determined the value in the parenthesis, we can remove its parenthesis and solve left to right.
6+4x6=
10x6=
60
Therefore, 60 is your answer. Please let me know if this helped. Thanks fellow learner!
Answer:
Step-by-step explanation:
El área total del camino es el producto del perímetro del jardín y el ancho del camino:
Donde:
- El ancho del jardín, en metros.
- El largo del jardín, en metros.
- El ancho del camino, en metros.
El ancho del camino es:
The total cost of the fabric is $57.1
A unit rate means a rate for one of something. We write this as a ratio with a denominator of one.
Given that, Ms. McDuffy bought 2 1/2 yards of fabric that cost $7.90 per yard. She also bought 3 3/4 yards of fabric that cost $9.96 per yard
Cost of fabric with unit rate = $7.90
= $7.90 × 5/2 = $19.75
And, cost of fabric with unit rate = $9.96
= $9.96 × 15/4 = $37.35
Total cost = $37.35 + $19.75 = $$57.1
Hence, the total cost of the fabric is $57.1
For more references on unit rate, click;
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