Ask question

Ask question

All categories

2 years ago

9

There were 45 runners to start a race. In the first half of the race, 1/3 of them dropped out. In the second half of the race, 3

/5 of the remaining runners dropped out. How many runners finished the race?

1 answer:

Helen [10]2 years ago

5 0

45/3=15 45-15=30 30/5=6 3x6=18 30-18=12 the answer is 12

You might be interested in

Simplify fully please

neonofarm [45]

Answer:

8x² + 8

Step-by-step explanation:

Given

(x² + 3)² - (x² - 1)² ← expand both factors using FOIL

= $x^{4}$ + 6x² + 9 - ( $x^{4}$ - 2x² + 1) ← distribute by - 1

= $x^{4}$ + 6x² + 9 - $x^{4}$ + 2x² - 1 ← collect like terms

= 8x² + 8

8 0

3 years ago

Read 2 more answers

Which expression is equivalent to 7.2 x 7.2 x 7.2 ?

Sladkaya [172]

Answer:

7.2^3 or 7.2 cubed=373.248

4 0

3 years ago

Melissa worked to earn $20.00. Alan worked for $12.00 hours. If she earns $2.00 per hour, how many hours did Melissa work?

MissTica

Answer: 10 hours

Step-by-step explanation: so if you do 10 times 2.00 it equals 20 dollars or you can divide 20 and 2

5 0

3 years ago

Find the y-intercept of the line: -4x - 2y = 16

Georgia [21]

The y-intercept is (0, -8)
if you set the equation to slope intercept format you get

y=-2x-8

3 0

2 years ago

Which property is illustrated by the following statement? 50pts

Virty [35]

When multiplying numbers, it doesn't matter which number is first or second.

The correct answer is: Commutative Property of Multiplication

4 0

3 years ago

Read 2 more answers