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svlad2 [7]
3 years ago
6

A. The GCF of 18 and 21 is__

Mathematics
1 answer:
Nuetrik [128]3 years ago
8 0

a. The GCF of 18 and 21 is<em> </em><em>3.</em>

18 +21 = <em>6 x 3 + 7 x 3 = 3(6 + 7)</em>

b. The GCF of 56 and 35 is <em>7.</em>

56 + 35 = <em>7(8 + 5)</em>

<em />

<em>Hope I helped!</em>

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Help me someone:((!!!!!
LiRa [457]

Answer:

Hope this helps!

Step-by-step explanation:

2L + 3S = 83

 

4L + 8S = 197

 

Multiplies the top equation by -2.

-4L + -6S = -166

 

4l  + 8S = 197

 

 

Adding them together...

 

2S = 31

 

S = 31/2 = 15.5

 

Plugging into the first equation:

 

 2L + 3S = 83

 

 2L + 3(15.5) = 83

 

2L + 46.5 = 83

 

2L = 83 - 46.5

 

2L = 36.5

 

L = 36.5/2 = 18.25

 

check:

 

2L + 3S = 2(18.25) + 3(15.5) = 36.5 + 46.5 = 83

 

4L + 8S = 4(18.25) + 8(15.5) = 73 + 124 = 197

 

The Large box weighs 18.25

The small box weighs 15.5

6 0
3 years ago
Fu Haifeng of China set a badminton world record with a smash of 332 kilometers per hour. A kilometer is about 58 mile.What is t
katrin [286]

Answer:

206 miles/hour

Step-by-step explanation:

1 kilometre per hour = 0.621 mile per hour

332 km/hr to miles per hour

= 332 km/hr × 0.621 miles per hour

= 206.295 miles per hour

Approximately to the nearest whole number

= 206 miles per hour

7 0
2 years ago
Simply the monomials below<br><br>(-8x⁴ y³)•(2x⁵ y²)+7x⁹ y⁵​
vlada-n [284]

Answer:

-9x^9y^5

Step-by-step explanation:

Do the multiply first:

-16x^9y^5+7x^9y^5

=x^9y^5(-16+7)

=-9x^9y^5

6 0
3 years ago
Read 2 more answers
Is the answer a gauze?
Zinaida [17]
I think so.. If not i am super sorry!!
8 0
3 years ago
Hi guys can you please help me
marissa [1.9K]

Answer: 40


Step-by-step explanation:


Finding perimiter is simple! You add the L & the W by each other and then times that by 2!


15 + 5 = 20


20 X 2 = 40!


- R3KTFORGOOD ☕

8 0
3 years ago
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