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o-na [289]
3 years ago
14

Explain how usingbasic facts can help you find 10 x 20 x 30 x 40 mentally.​

Mathematics
2 answers:
Leokris [45]3 years ago
5 0

Answer:

Step-by-step explanation:

We know that 1x 2 is 2 (add the 2 zeros to make it 200)

And 3x4 is 12 (add 2 zeros and make it 1200) Then Add

Natasha_Volkova [10]3 years ago
3 0

Answer: 240000

Step-by-step explanation: 10 · 10 · 10 · 10 = 10000

1 · 2 · 3 · 4 = 24

 

10 · 20 · 30 · 40 = 240000

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Carmen runs 7 miles in 60 minutes. At the same rate, how many miles would she run in 24 minutes?
zhuklara [117]
Hey there,
60 minutes = 7 miles
1 minute = 7 / 60  
               = 7/60
24 minutes = 7/60 x 24
                   =2.8 miles

Hope this helps :))

~Top
3 0
3 years ago
Read 2 more answers
Can i have some help on both of these questions for brainlist !!!!!!!!!!!
Nezavi [6.7K]

Answer:

B and A

Step-by-step explanation:

What I did for these problems is plug in the numbers listed for the x-value. For example, in your calculator you’d put; (1/2)^3 and that’d get you 1/8. Then, try it for 8^(2 - 3) which is also 1/8. So, (1/2)^3 = 8^(2 - 3).

The same process for the second problem. 16^(2(7/3) -3) = 4^((7/3) + 1). This should give you 101.59…

I hope this helps :)!

5 0
2 years ago
1. Find the value of x. *
oksano4ka [1.4K]
Forgive me if I’m wrong. 25?
4 0
3 years ago
Read 2 more answers
Is this right or wrong? Put these numbers in order from the smallest to the biggest. -1/5, -2/3, 2, 4.
quester [9]

Answer:no the -2/3 should be before -1/5

Step-by-step explanation:

8 0
3 years ago
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Given: A = {(2, 3), (5, 1), (-3, -2), (0, 3)} What is the range of A?
Mama L [17]

Answer:

\boxed{ \bold{ \huge{ \boxed{ \sf{ - 2 \:  ,  \: 1 \:  ,  \: 3 \: }}}}}

Step-by-step explanation:

Given,

A = { ( 2 , 3 ) , ( 5 , 1 ) , ( -3 , -2 ) , ( 0 , 3 )

To find : Range

Range are set of all y - co-odinates.

So, Range = { - 2 , 1 , 3 }

Hope I helped!

Best regards!!

7 0
3 years ago
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