3 years ago

Policeman A and Policeman B hand out 70 speeding tickets in a month.

Mathematics

1 answer:

Inessa05 [86]3 years ago

8 0

Answer:

Policeman A = 56 tickets

Step-by-step explanation:

Policemen A + B = 70

If Policeman B hands out x no of tickets...

Then Policeman A hands out 4x no of tickets

meaning...

x + 4x = 70

5x = 70

x = 70/5

x = 14

Therefore Policeman A hands out..

4x = 4 × 14 = 56 tickets

You might be interested in

WILL GIVE BRAINLEST PLZZZZ HELP (06.04) What is the value of Fraction 1 over 2x3 + 3.4y when x = 2 and y = 5?

Jet001 [13]

Answer:

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Mary estimated that it would take 3 hours to write a book report, but it actually took her 5 hours. What is the percent error fo

Eduardwww [97]

Answer:

The percent error is 40%.

Step-by-step explanation:

5 (actual time) - 3 (estimated time) = 2

2 divided by 5 (actual time) = 0.4

0.4 x 100 = 40%

6 0

2 years ago

A company estimates that it will sell ????(x) units of a product after spending x thousand dollars on advertising, as given by ?

zepelin [54]

Answer:

$(11\frac{1}{3},20)$

Step-by-step explanation:

If the Number of Sales of x units, N(x) is defined by the function:

$N(x)=-5x^3+235x^2-3400x+20000,10\leq x\leq 40$

$N'(x)=-15x^2+470x-3400\\When -15x^2+470x-3400=0\\x=20, x=11\frac{1}{3}$

Next, we text the critical points and the end points of the interval to see where the derivative is increasing.

$N'(10)=-200\\N'(11\frac{1}{3})=0\\N'(19)=115\\N'(20)=0\\N'(40)=-8600$

Thus, the rate of change of sales $N'(x)$ is increasing in the interval $(11\frac{1}{3},20)$ on 10≤x≤40.

7 0

2 years ago

Eduardo and Krystal each improved their yards by planting daylilies and shrubs. They bought their supplies from the same store.

PIT_PIT [208]

Answer:

Step-by-step explanation:$9 daylilies, $4shrubs. 9x5=45+4x5=20 $65. 9x4=36+10x4=$76

3 0

2 years ago

A yogurt cost 55 p . <br> how many yogurts can be brought for six pound ?

lions [1.4K]

Answer:

Since 3 pounds would get you 5 yogurts multiply that by two and you get 10

The answer is 10 yogurts

Hope it helped!

Step-by-step explanation:

4 0

2 years ago