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3 years ago

How can I solve it.

Mathematics

1 answer:

Tju [1.3M]3 years ago

3 0

Step-by-step explanation:

Profit of white cement = 8 per bag

Loss of Grey cement = 5 per bag

A 3000 bags of white cement = 3000 x 8 = 24000

5000 bags of Grey cement = 5000 x 5 = 25000

So the company recieved a loss of $1000

B number of grey bags sold = 6400

= 6400 x 5 = 32000

If there are 4000 white bags = 4000 x 8 = 32000

Then there will be neither loss nor profit

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A physical education teacher plans to divide the seventh graders at Wilson Middle School into teams of equal size of year-ending

Crank

Step-by-step explanation:

Consider the provided information.

The total number of students are: 24+26+21=71

He wants each team will have the same number of students between 5 and 9.

The number between 5 to 9 are 6, 7 and 8.

The number 71 is a prime number so we need to divide the 71 students in group so that minimum students left without team.

Dividing 6 students in each group.

Number of teams: $\frac{71}{6}$ = 11 teams and 5 students.

Dividing 7 students in each group.

Number of teams: $\frac{71}{7}$ = 10 teams and 1 students.

Dividing 8 students in each group.

Number of teams: $\frac{71}{8}$ = 8 teams and 7 students.

Thus, we can not divide 71 students into equal teams, but 70 divided by 7 gives the least students left out i.e 10 teams each with 7 students and only 1 student will remain at last.

6 0

3 years ago

Situation: a 25 gram sample of a substance that’s used for drug research has a K-value of 0.1205

Lelu [443]

The decay model is given as

$N=N_0e^{-Kt}$

The substance's half-life is the time it takes for the substance to decay to half its original amount. In other words, it's the time $t$ such that $N=\dfrac{N_0}2$ . Substituting into the model, you have

$\dfrac12=e^{-Kt}$

You can solve for $t$ now.

$\dfrac12=e^{-Kt}$
$\implies\ln\dfrac12=\ln e^{-Kt}$
$\implies-\ln2=-Kt\ln e$
$\implies\dfrac{\ln2}K=t\approx5.7523\text{ days}$

8 0

3 years ago

What is the sum of (5xy + x - 8) and (13x + 2)

n200080 [17]

5xy+x-8+13x+2=
Combine like terms
5xy+14x-6

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4 years ago

How is poop formed in the body

AlladinOne [14]

Answer:

from the foood you eat after its digested

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

10. State the divisibility rules for 4 and 8 and check if the number 684572 is divisible by 4 and 8.

Lerok [7]

Answer:

yes the number is divisible by 4 in which we get 171143 without any decimal but if we try to divide it by 8 then we get

85571.5 with decimal include

8 0

3 years ago

How can I solve it.​

How can I solve it.