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pshichka [43]
3 years ago
11

All the members of a construction crew work at the same pace. Six of them working together are able to pour foundation in 22 hou

rs.
How many hours would this job take if the number of workers increased by factor of 4?
Mathematics
1 answer:
beks73 [17]3 years ago
8 0

Answer:

All the members of a construction crew work at the same pace. Four of them working together are able to pour concrete foundations in 32 hours.

Step-by-step explanation:

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All vertical and horizontal cross-sections of any one cube are all the same size and shape. What about vertical and horizontal c
jek_recluse [69]
Yes they are all the same size and shape.
6 0
3 years ago
If interest is compounded every 3 months, how often is it compounded?
Mamont248 [21]

Answer:

c. quarterly

Step-by-step explanation:

To start with 1 year is equal to twelve months

3months out of 12 months will be;

3/12= 1/4

Here it is compounded quarterly and n=4  where n is the number of compoundings a year.

Lets study the compound interest formula;

A=P(1+\frac{r}{n} )^{nt}

where;

A=The ending amount

P=Starting amount

r=rate of interest expressed as a decimal

n=number of compoundings a year

t=total number of years

The number of compoundings in any one year  can be an interest compounded  yearly where n=1, semi-annually with n=2, quarterly where n=4, monthly where n=12, weekly and n=52 and finaly daily with n=365.

7 0
4 years ago
Please help thank you
Thepotemich [5.8K]

Answer:

The value is 78

Step-by-step explanation:

We need to add them all together

6+15+24+33

78

7 0
3 years ago
Find the condition that the zeros of the polynomial f(x) = x^3+3px^2+3px+r may be in A.P.
nevsk [136]

Answer:


Step-by-step explanation:

note :

( a + b )^3 = a^3 +b^3 +3 a²b +3b²a + b^3...(*)


the condition is : r = 1  and  p=1

put : x= a  and  b = 1  in (*) you have :

(x + 1)^3 = x^3 +3x² +3x +1

the zeros is : x = - 1

bcause : x^3 +3x² +3x +1 = 0     .... (x + 1)^3 = 0  so : x = - 1

4 0
3 years ago
Find the value of a and b
Kipish [7]

Answer:

Step-by-step explanation:

In triangle ADC,

b+50+60=180(sum of angles of triangle equals 180)

or,b=180-110

▪b=70

also,

In triangle ABD,

angleA = 30+50=80

now,

a+80+60=180(sum of angles of traingle equals 180)

or,a=180-140

▪a=40'

Ans.

4 0
3 years ago
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