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fredd [130]
3 years ago
12

Work this out plzzzz x

Mathematics
2 answers:
Nostrana [21]3 years ago
7 0
You need to do it like this

kari74 [83]3 years ago
6 0
I think it 72 please tell me if I’m wrong
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The product of w and 2 is greater than or equal to 19.
madam [21]

Equation Form:

w x 2 \geq 19

Divide both sides by 2:

w \geq 9.5

So, w must be equal to or greater than 9.5 for this equation to work.

5 0
2 years ago
What is the equation of a line, in general form, that passes through point (1, -2) and has a slope of 1/3. 1.x - 3 y - 7 = 2.x -
Nutka1998 [239]

Answer:

x- 3y - 7=0

Step-by-step explanation:

the line in the slope-intercept form:

  • y= mx+b

m= 1/3 and point given (1, -2) by using which we find y-intercept:

  • b= y-1/3x
  • b= -2- 1/3*1= - 7/3
  • y= 1/3x- 7/3

General form of a line is: ax+by+c= 0

converting:

  • y= 1/3x- 7/3  ⇒  3y= x- 7  ⇒  x- 3y - 7=0
5 0
3 years ago
A bus covers a distance of 90km at a uniform speed. Had the speed been 15km/hour it would have taken 30 minutes less for the jou
Brrunno [24]

Answer:

Step-by-step explanation

Let's say d = distance, r = speed and t = time

We know the distance formula is :

distance = speed x time

d = r multiplied by t

d = rt

If the speed is 15km/hr, the time would be 30 minutes shorter.

Since d = rt,

90 = 15t

t = 6,

This means the time taken for the bus to complete the journey at 15km/hr would be 6hrs.

Originally though, the journey takes 30 minutes longer.

So we can say t = 6.5 hrs , and we know d = 90

Now we use the distance formula:

d = rt, since we want to find the original speed, we want to find r.

Speed = distance/time

r = d/t

r = 90/6.5

r = 180/13

Therefore the original speed is 180/13 km/hr

4 0
3 years ago
at a sale, dresses were sold for $10 each. if the dresses originally cost $200 each, what percentage of its original price was a
Varvara68 [4.7K]

Answer:

5%

Step-by-step explanation:

10/200 = .05

.05 = 5%

7 0
2 years ago
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so far, Jim has burned 5.22 calories. He wants to burn a total of 600 calories. how many more calories must jim burn?
alekssr [168]

Answer:

594.78

Step-by-step explanation:

600-5.22 = 594.78

6 0
2 years ago
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