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3 years ago

Plz answer the question in the screenshot

Mathematics

1 answer:

Soloha48 [4]3 years ago

3 0

The angle is 85 degrees definately

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Six men completed a task in 24 hrs and 48 min. How long, in hours and minutes, would it take four men to complete the same task?

igor_vitrenko [27]

Answer:

It would take 4 men 37 hrs and 12 mins to complete the same task.

step-by-step explanation:

Let X be the time the four men would use to complete the task.

From the question, 6 men completed a task in 24 hrs and 48 mins

But

$24 \: hrs \: 48 \: mins = 24(60mins) + 48 \: mins=1488 \: mins$

Using ratio and proportion

$6 \: men:1488 \: mins$

$4 men:x\:mins$

if more, less divides and if less, more divides.

4 men required more time to complete the task

Hence:

$x = \frac{6}{4} \times 1488 \: mins$

$x = 2232 \: mins$

x = 37 hrs 12 mins

5 0

3 years ago

Im training my robot to eat cupcakes. Every 14 days it eats 5 cupcakes and I'd like to buy enough for the next 42 days. How many

Olegator [25]

2940

hope this helps

Mark as brainllest

7 0

3 years ago

1.)<br>Х<br>ui<br>Na<br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B3%7D%7B5%7D%20%20%5Ctimes%20%20%5Cfrac%7B7%7D%7B9%7D%20"

MAVERICK [17]

if your question is 3/5*7/9...

Step-by-step explanation:

3/5*7/9

3*7/5*9

21/ 45 / 7/15

hope your question is 3/5*7/9 ... so, it will help you ... If it helps , plz mark me brilliantiest

6 0

3 years ago

A sample of 100 people is classified by gender (male/female) and by whether they are registered voters. The sample consists of 8

uysha [10]

Answer:

Step-by-step explanation:

Given :

Male Female Total

Registered 60

Non registered 40

Total 20 80

Solution :

N= 100

Formula of expected frequency = $E_{ij}=\frac{T_i \times T_j}{N}$

$E_{ij}$ = expected frequency for the ith row/jth columm.

$T_i$ = total in the ith row

$T_j$ = total in the jth column

N = table grand total.

So, using formula $E_{11}=\frac{T_1 \times T_1}{100}$

$E_{11}=\frac{60 \times 20}{100}$

$E_{11}=12$

$E_{12}=\frac{T_1 \times T_2}{100}$

$E_{12}=\frac{60 \times 80}{100}$

$E_{12}=48$

$E_{21}=\frac{T_2 \times T_1}{100}$

$E_{21}=\frac{40 \times 20}{100}$

$E_{21}=8$

$E_{22}=\frac{T_2 \times T_2}{100}$

$E_{22]=\frac{80 \times 40}{100}$

$E_{22}=32$

Expected frequency table

Male Female Total

Registered 12 48 60

Non registered 8 32 40

Total 20 80

So, the expected frequency for males who are registered voters are $E_{11}=12$

5 0

3 years ago

Using this diagram, find x and y

PilotLPTM [1.2K]

Answer:

x=13

y=11

Step-by-step explanation:

3y+5+52=90

3y=90-57

3y=33

y=33/3=11

4x=52

x=52/4=13

8 0

2 years ago

Read 2 more answers