What Is 18/30 Reduced To (2023)

Mathematics Middle School

Answers

Answer 1

18/30, is reduced to 9/15 then 3/5.

9/15 first, because 18 and 30 are both divisible by 2.

18÷2=9 and 30÷2=15.

Then how I got 3/5, was because both 9 and 15 are divisible by 3.

9÷3=3 and 15÷3=5 so the final answer that you are looking for, is 3/5.

Answer 2

Answer: 3/5

Step-by-step explanation: In order to write the fraction 18/30 in lowest terms, we divide the numerator and the denominator by the greatest common factor of 18 and 30 which is 6.18 divided by 6 is 3 and 30 divided by 6 is 5 so 18/30 written in lowest terms is 3/5.

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What is 1/8 divided by 2

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Whendividing 1/8 by 2
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Answers

6/7 because 48 divided by 8 is 6 and 56 divided by 8 is 7

48/56 can be simplified by dividing 48 by 8 and you get 6. Then, you divide 56 by 8 equals 7. So, 48/56 in simplest form is 6/7.

A $40 jacket is on sale for 30% off what is the sale price

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So 40=100%
find 100%-30%=70%
70% of 40
'of' can be translated to multiply
70% times 40
percent means parts out of 100 so
70%=70/100=7/10=0.7
so
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the sale price=$28

Directions: Drag each tile to the correct box. Order the following conditions in order from the largest number of possible triangles to the least number of possible triangles.

Condition A: a perimeter of 12 and even-numbered side lengths
Condition B: a side length of 4 inches, a side length of 5 inches, an included angle of 110º, and a perimeter of 11 inches
Condition C: a right triangle with an area less than 13 square inches and odd-numbered leg lengths greater than 1 inch
Condition D: an isosceles triangle with two angles that measure 50º

Answers

D, C, A nad then B
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HELP ME DO THIS
y=2x+4
-5x-5y=-5

Answers

Y=2x+4
-5x-5y=-5
subsitute 2x+4 for y
-5x-5(2x+4)=-5
-5x-10x-20=-5
-15x-20=-5
add 20 to both sdies
-15x=15
divide by -15
x=-1

subsitute
y=2(-1)+4
y=-2+4
y=2

x=-1
y=2

A red string of lights blinks once every 3 seconds while a string of blue lights blink once every 4 seconds. How many times will both sets of lights blink at the same time in 60 seconds?

Answers

The string of red lights will blink 20 times and the blue lights will be 15 60 divided by 4 is 15 and 60 divided by 3 is 20

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Answers

So each book is an average of 2.8 cm
so 120 divided by each book=number of books
120/2.8=42.85
round down since you can't fit .85 of a book on a shelf
the answer is 42 books

Explain how you can use a number line to show that 5/8 is greater than 3/8

Answers

You can start by drawing a number line and labeling it with eighths. ( 1/8, 2/8, etc.) Then you can place a dot on 3/8 and 5/8. From there, it's clear to seethat 5/8 is greater than 3/8.

Draw a fraction number line and put a dot where each fraction from greatest to least is. Hope this helps
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Explain how you can use a number line to show that 5/8 is greater than 3/8

Answers

You can have a number line showing eigths and place the 2 fractions on the number line in the correct place.

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Answers

Dividing fractions is the same thing as multiplying by the reciprocal

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3/4 divided by 1/24, must do the reciprocal (flip) of 1/24 which is 24/1, when do this you now multiply, 3/4x24/1=72/4=18

What is 151/24 simplified

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Well 151 divided by 24 is 6 remainder 7 so the mixed number would be 6 and 7/24

Every prime number greater than 10 has a digit in the ones place that is included in which set of numbers below?

Answers

The numbers are all prime and odd numbers
11, 13,17,19,23,29,31,37,
so the numbers are 1,3,7,9
because
2 is even and if it ends in 2 then divisible by 2
this crosses out all the even numbers :2,4,6,8
if it ends with 5 then it is divisible by 5 cross 5 out
so the numbers are 1,3,7,9
if the number ends with these number that doesn't mean that it is always prime exg 21 is not prime, 49 is not prime
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N^2+16n+60 over 36-n^2

Answers

Factor
36-n^2 is difference of 2 perfect squares
a^2-b^2=(a-b)(a+b)
6^2-n^2=(6-n)(6+n)
factor

n^2+16n+60
find what 2 numbers multiply to 60 and add to 16
factors of 60=2,2,3,5
the numbers are 10 and 6
so factored out
(x+6)(x+10)
(x+6)=(6+x)

so the equation is
[(x+6)(x+10)]/[(6+x)(6-x)]=[(6+x)/(6+x)] times (x+10)/((6-x)=1 times (x+10)/(6-x)

the answer is (x+10)/(6-x)

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Answers

The answer is D, because you have to divide 12 by 2 so you get 6 then 2 times 3 to get 6, so now you should have 6+4-6 which will then become 10-6 which equals 4

Which one of the following groups of numbers includes all prime numbers? A. 7, 17, 63, 67 B. 3, 11, 23, 31 C. 1, 3, 11, 23 D. 2, 3, 5, 15

Answers

The prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself.

A.
7 - is a prime number
17 - is a prime number
63 - is not a prime number because 63 = 3 × 21

B.
3 - is a prime number
11 - is a prime number
23 - is a prime number
31 - is a prime number

C.
1 - is not a prime number

D.
2 - is a prime number
3 - is a prime number
5 - is a prime number
15 - is not a prime number because 15 = 3 × 5

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Answers

So 55=100%-25%
55=75%
divide by 3
18.333=25%
multiply both sides by 4
$73.33= 100%
it cost $73.33

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Answers

8x^2+2x-3
factor
()()
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the answer is -1 and 3
then what 2 numbers multiply to get 8
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