Ask question

Ask question

All categories

2 years ago

14

24 runners were faster than Colby in a race. If 30% of the runners were faster than Colby, what was the total number of runners

in the race?

2 answers:

Mashcka [7]2 years ago

6 0

Answer:

80 runners

Step-by-step explanation:

24/30=0.8

0.8*100=80

saveliy_v [14]2 years ago

6 0

Answer:

80 runners

Step-by-step explanation:

make a proportion: 30/100 = 24/x

cross multiply: 2400=30x

divide: 2400/30=80

80 runners

You might be interested in

If you have 24 classmates, how many ways are there for you to choose 4 team mates?

valkas [14]

You can try 4 x 6 = 24 so you can have 4 team mates of 6 groups ? is that what your asking

3 0

3 years ago

What is 22x+10 if x is 10

lisov135 [29]

Answer:

Step-by-step explanation:

rewrite you problem with the number as x

22(11) + 10 numbers next to eachother mean to multiply

242 + 10

252

5 0

2 years ago

two verticies of paralellogram ABCD are A(-6,-1) and B(-5,3). The intersection of the diagonals, E, are (-2, 1/2). Determine the

masya89 [10]

Answer:

D(2,2)

Step-by-step explanation:

The diagonals of a parallelogram gram bisects each other.

Therefore E is the midpoint of AD.

Let the coordinates of D be (a,b).

By the midpoint rule:

$( \frac{x_1+x_2}{2} ,\frac{y_1+y_2}{2}) = ( - 2, \frac{1}{2} )$

This implies that:

$( \frac{ - 6+a}{2} ,\frac{ - 1+b}{2}) = ( - 2, \frac{1}{2} )$

This implies that:

$( \frac{ - 6+a}{2} = - 2 ,\frac{ - 1+b}{2} = \frac{1}{2} )$

$( - 6+a =- 4 , - 1+b = 1 ) \\ ( a =- 4 + 6 , b = 1 + 1 ) \\ ( a =2 , b =2 )$

7 0

2 years ago

What is (5/9×(°F-32))

djyliett [7]

Answer:

32º

Step-by-step explanation:

Fº-32 ×5/9

5/9Fº-160/9

5/9Fº =160/9

(5Fº)9=9(160)

45Fº=1440

divide both sides by 45

Fº=32

6 0

2 years ago

What is the y-intercept of a line thay has a slope of 3 and passes through point (-1,-7)

Hunter-Best [27]

The answer is y= 3x -4

3 0

2 years ago