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lutik1710 [3]
3 years ago
5

Help me plz... thanks

Mathematics
2 answers:
crimeas [40]3 years ago
5 0
C + D would be 5 + 4 which = 9. Rational.

A x B would be 2((sqrt 3)^2) The 2nd power and sqrt cancel each other out to get 2 x 3 which = 6. Rational.

Same thing applies to A x A. (sqrt 3)^2 = 3. 
lubasha [3.4K]3 years ago
3 0
C+d
c*d
should be the answer
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Andrew and Sarah are tracking the number of steps they walk. Andrew records that he can walk 6000 steps in 50 minutes. Sarah wri
Leni [432]

Answer:

Andrew walks more steps than Sarah.

Step-by-step explanation:

The question is incomplete. The complete question is :

Andrew and Sarah are tracking the number of steps they walk. Andrew records that he can walk 6000 steps in 50 minutes. Sarah writes the equation y=118x, where y is the number of steps and x is the number of minutes she walks, to describe her step rate. This week, Andrew and Sarah each walk for a total of 5 hours. Who walks more steps?

Solution:

Given:

Andrew walks 6000 steps in 50 minutes.

Number of steps Sarah walks is given by the equation :

y=118x

where y is the number of steps and x is the number of minutes she walks.

Finding the number of steps each walks in 5 hours.

Total number of minutes in 5 hours = 5\times 60 = 300\ min

For Andrew:

Using unitary method:

If in 50 minutes Andrew walks = 6000 steps.

In 1 minute he will walk = \frac{6000}{50} = 120 steps

In 300 minutes he will walk = 120\times 300 = 36000 steps

Thus, Andrew will walk 36,000 steps in 5 hours.

For Sarah:

We will plugin x=300 in the equation and solve for y.

We have:

y=118(300)

∴ y=35400

Thus, Sarah will walk 35,400 steps in 5 hours.

Therefore, Andrew walks more steps than Sarah as 36,000>35,400.

5 0
3 years ago
C.<br> In (MN) = In M + In N, for M&gt; 0 and N&gt; 0<br> True or false
melisa1 [442]
That statement is true
8 0
3 years ago
Last two answer for both or no brainleist
professor190 [17]

Answer:

IM NOT SURE BUT DO U GO TO GEM PREP

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Paul has a tack stuck in his four-wheeler tire. If the tire has a diameter of 36 inches, how far does the tack travel in 62° of
Aleksandr-060686 [28]

Answer:

31pi/90

Step-by-step explanation:

4 0
3 years ago
Sarah is building a model of the school. the scale of her model to the actual school is 1 to 10. Her model is 380 in tall. How t
Leni [432]
So for this I would set up a ratio. 1/10=x/380 then you cross multiply so 1x380=10x. Then solve the equation so 380/10=x and you get 38in. Hope my explanation helped!
4 0
3 years ago
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