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Tatiana [17]
3 years ago
13

Please help me figure this out

Mathematics
1 answer:
Lelechka [254]3 years ago
7 0
142 easy peasy. This is an easy one
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The difference of two rational numbers is always negative true of false
Vlada [557]

Comparing two rational numbers

Use fraction form:

 

Make the denominators the same and compare the numerators. The number with the smaller numerator is smaller. For example, to compare a/b and c/d, we rewrite

 

a/b=a*d/b*d

  = ad/bd and c/d = c*b/d*b=bc/bd

 

Now just compare the numerators : "ad" and "bc"

 

Multiplying and Dividing Rational Numbers 

 

Multiplying and dividing rational numbers in decimal form is the same as multiplying and dividing integers. The decimal place of the product is the same of all decimals of all multiplied numbers. For example, 3.12*2.4.

 

Solution => 3.12*2.4=7.488

 

When multiplying or dividing rational numbers in fractional form, you multiply the numerators (N*N) and then multiply the denominators (D*D).

 

When dividing rational numbers in fractional form, first take the reciprocal of the divisor, and then multiply the numerators and the denominators.

 

Example => 5/9 divided by 2/7 .

 

Solution => 5/9 * 7/2 =  35/18

 

 

Adding Rational numbers

 

Adding and Subtracting rational numbers in decimal form is the same as adding and subtracting integers.

 

Example => -3.54+2.79=-0.75

 

When adding or subtracting rational numbers in fractional form, first make the denominator equal, and then add or subtract the numerators.  

The difference can be negative or positive. 

7 0
3 years ago
X/-9 ​≥ 3
____ [38]

Answer:

x ≤ -27

Hope this helps,

Davinia.

8 0
3 years ago
Read 2 more answers
At a grocery store, the price of a watermelon is determined by how many pounds the watermelon weighs. The price of a watermelon
vodka [1.7K]
P = w * .6

Explanation: First, we must determine the price per pound of watermelon. To do this, we take the cost of the watermelons, and divide it by the number of pounds. 4.38 / 7.3, which is .6. This tells us each pound costs 60 cents, or $.6. We’re trying to say “The total price of watermelon would be the amount of watermelon bought times .6.” Plug in the variables you’re given, and you get p = w * 6.
7 0
3 years ago
Read 2 more answers
Paul is decorating cupcakes. He can decorate 3/4 of a cupcake per minute. At this rate, how many cupcakes can he decorate in 12
Ivenika [448]

Answer:

3/4 x 12/1 because if you can decorate 3/4 a cupcake per minute, you multiply 3/4 by 12 to find the total amount of cupcakes he could decorate. 3/4 x 12/1 = 9 Paul can decorate 9 cupcakes in 12 minutes.

Step-by-step explanation:

hope tis helps im not good at match but i know this

7 0
2 years ago
Read 2 more answers
( HELP FAST PLEASE!!!!!!!!!) During her morning workout, Brennaugh does a circuit of sit-ups followed by burpees. She does four
Deffense [45]

Answer:

1 round = 4 burpees 10 sit ups

Step-by-step explanation:

1 round = 4 burpees 10 sit ups

2 round = 8 burpees 20 sit ups

3 round = 12 burpees 30 sit ups

4 round = 16 burpees 40 sit ups

5 0
3 years ago
Read 2 more answers
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