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Ostrovityanka [42]

3 years ago

11

What is the value of X

1 answer:

AleksandrR [38]3 years ago

7 0

Well you see here, you need to take attest pre-calculus to answer this question. I am in 6th grade.

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The sum of two #'s is 29. The sum of the smaller and 2 times the larger is 45. Find the #'s.

Solnce55 [7]

X= 13
y=16

Work:

x+y=29

x=29-y

x+2y=45

29-y+2y=45

y=45-29

y=16

x=29-16

x=13

3 0

3 years ago

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100 POINTS + BRAINLYEST<br><br> Evaluate 7⋅5+42−23÷4 '<br><br> 49 41 34 9

alexandr402 [8]

7.5+42−23÷4= 43.75

I hope its help you

3 0

2 years ago

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louisa cuts 7 pieces of yarn. each piece is 28 hundredths meters long. what is the total length of yarn louisa cuts?

Serhud [2]

Answer:

216

Step-by-step explanation:

4 0

3 years ago

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A car travels along a straight stretch of road. It proceeds for 16.2 mi at 57 mi/h, then 24.6 mi at 44 mi/h, and finally 45.1 mi

LekaFEV [45]

Answer:

The average velocity the entire trip was 43.25 mi/h

Step-by-step explanation:

In this case we have to calculate an average based on the miles traveled. First we have to calculate the total of miles traveled, then calculate the portion of the total travel of each and with this calculate the average speed during the trip. First the total miles traveled:

$TotalMiles=16.2+24.6+45.1=85.9$

Now the percentages:

At 57 mi/h were $\frac{16.2}{85.9}=0.19$

At 44 mi/h were $\frac{24.6}{85.9}=0.29$

At 37.8 mi/h were $\frac{45.1}{85.9}=0.52$

Now multiplying the speed by the portion and summing them we can have the average velocity:

$57*0.19+44*0.29+37.8*0.52=43.25$

The average velocity the entire trip was 43.25 mi/h

5 0

3 years ago

1. Select all the expressions that are equivalent to 4 - x.

viktelen [127]

Step-by-step explanation:

It is required to find the expressions that are equivalent to 4-x. We can also write it as :

Option (b) : (4-x) = 4+(-x)

Option (c) : (4-x) = -x+4

Hence, the correct options are (B) and (C).

4 0

3 years ago