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Sergeu [11.5K]
3 years ago
7

It takes 15 men working steadily 4 days to dig the foundation for a new apartment. How many days would it have taken 25 men work

ing at the same rate to dig the foundation? Express your answer as a decimal to the nearest tenth.]
Mathematics
1 answer:
Vlad1618 [11]3 years ago
7 0

Answer:

2.4 days is the answer.

Step-by-step explanation:

It takes 15 men working steadily 4 days to dig the foundation for a new apartment.

Let 25 men takes 'x' days to complete the same task.

Applying ratio we get:

\frac{15}{25} =\frac{x}{4}

Solving this we get;

=> 25x=60

So, x = 2.4 days

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Factor.<br><br> 3x(y−4)−2(y−4)<br><br><br><br> Enter your answer in the box.
NISA [10]

Answer: Use the distributive property to multiply 3 by y−4.

3y−12−2(y−4)

Use the distributive property to multiply −2 by y−4.

3y−12−2y+8

Combine 3y and −2y to get y.

y−12+8

Add −12 and 8 to get −4.

Anwser:

y−4

Step-by-step explanation:

Hope this helps!

6 0
3 years ago
Work out the value of each expression, when r= 2.5 and t = 6.
Usimov [2.4K]

Answer:

a)  4(t - r) = 4(6 - 2.5) = 4 x 3.5 = 14

b)  4t - r = (4 x 6) - 2.5 = 24 - 2.5 = 21.5

c)  2(3t - 10) = 2(3 x 6 - 10) = 2(18 - 10) = 2 x 8 = 16

d)  (t - 2)² = (6 - 2)² = 4² = 4 x 4 = 16

e) cannot decipher the equation

f)  6r + t = 6 x 2.5 + 6 = 15 + 6 = 21

8 0
2 years ago
Read 2 more answers
A high school math teacher is grading her students' tests. The teacher spends about 4 minutes grading each test. The teacher has
gavmur [86]
The answer is D because , 4x176 = 704 which you divide by 60 because thats how many minutes are in an hour which should come out to 11 hours
3 0
3 years ago
??????????????????????????
Umnica [9.8K]

Solution:

<em>Simple Interest = Principal Amount × Rate of Interest/100 × Time</em>

Here, Principal Amount = $6000

Rate of Interest =  6%

Time = 4 years

Simple Interest = 6000 × 6/100 × 4 = <em>$1440</em>

3 0
3 years ago
The exponent equivalent of 20 x 20 x 20 is
geniusboy [140]

Answer:

20 to the 5th power

Step-by-step explanation:

7 0
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