All categories

3 years ago

Darren runs 1/4 a mile in 2.5 mins. how long will it take him to run a full mile?

Mathematics

1 answer:

rusak2 [61]3 years ago

6 0

it is simple, you multiply 2.5 by 4

2.5*4=10

You might be interested in

Find the value of x. B X+5 4 D E 2x 3 А x = [?]

Greeley [361]

Answer:

x = 3

Step-by-step explanation:

Δ BDE and Δ BAC are similar triangles, thus the ratio of corresponding sides are equal, that is

$\frac{BD}{BA}$ = $\frac{BE}{BC}$ , substitute values

$\frac{x+5}{3x+5}$ = $\frac{4}{7}$ ( cross- multiply )

4(3x + 5) = 7(x + 5) ← distribute parenthesis on both sides )

12x + 20 = 7x + 35 ( subtract 7x from both sides )

5x + 20 = 35 ( subtract 20 from both sides )

5x = 15 ( divide both sides by 5 )

x = 3

5 0

3 years ago

Can someone help me with problems J-L PLZZZ ITS URGENT DUE TOMORROW AND I REALLY NEED HELP AND IM SO TIRED

siniylev [52]

h. y / x^2

j. 0.00001

k. 0.000005

I. 0.025

m. 8 times 10^-3

n. 1.25 times 10^-4

o. 5 times 10^-7

p. 0.000000001

I only did the ones I see, hope it helps.

3 0

3 years ago

An electric bulb is sold in a box measuring 5 cm by 4 cm by 4 cm. If the shopkeeper receives them in a carton measuring 50 cm by

katen-ka-za [31]

Answer:

250

Step-by-step explanation:

Bulb box and carton both are of cuboidal shape.

For bulb box the dimensions are:

l = 5 cm, w = 4 cm, h = 4 cm

$V_{Bulb\: box} =lwh$

$\implies V_{Bulb\: box} =5(4)(4)$

$\implies V_{Bulb\: box} =80\: cm^3$

For Carton the dimensions are:

l = 50 cm, w = 20 cm, h = 20 cm

$V_{Carton} =lwh$

$\implies V_{Carton} =50(20)(20)$

$\implies V_{Bulb\: box} =20,000\: cm^3$

To find the number of bulbs packed in the carton, divide the $V_{Carton}$ by $V_{Bulb\: box}$

$Number \:of \:bulbs =\frac{V_{Carton}}{V_{Bulb\: box}}$

$\implies Number \:of \:bulbs =\frac{20,000}{80}$

$\implies Number \:of \:bulbs = 250$

So, 250 bulbs will be packed in one carton.

3 0

2 years ago

I need help quick plz

Bess [88]

Hello, the answer is C

7 0

3 years ago

Read 2 more answers

Helpp pls fastttttttttttttttttttt

Aleksandr [31]

Answer:

35 square inches

Step-by-step explanation:

S = ( 1/3 x 15 ) x ( 1/3 x 21 ) = 5x7= 35 square inches.

Hope this helps you.

6 0

1 year ago