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2 years ago

Heres an easy question. Solve this.

}{5}" alt="\frac{1}{5}" align="absmiddle" class="latex-formula">y = 10

Mathematics

1 answer:

Grace [21]2 years ago

3 0

Answer:

y=50

Step-by-step explanation:

$\frac{1}{5}$ y=10

y=10÷ $\frac{1}{5}$

=50

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Fine the following when a=-2, b=4, c=7 7b-12 over 2ac

iren [92.7K]

Hello!

You have to put the numbers in for the variables in the equation

$\frac{7b - 12}{2ac}$

Put the numbers in

$\frac{7(4) - 12}{4(-2)(7)}$

Combine like terms

$\frac{28 - 12}{-56}$

$\frac{16}{-56}$

The is is $\frac{16}{-56}$ or about -0.29

Hope this help!

3 0

3 years ago

Suppose the population of a certain city is 3031 thousand. It is expected to decrease to 2246 thousand in 50 years. Find the per

Kipish [7]

Answer:

The rate at which the population decrease is 59.8 %

Step-by-step explanation:

Given as :

The population of city = 30,31,000

Now The population of city decrease to 22,46,000

The time period in which population decrease is 50 years

Let the percentage rate of decrease = R%

So,

Final population = initial population × $(1-\frac{Rate}{100})^{Time}$

Or, 22,46,000 = 30,31,000 × $(1-\frac{Rate}{100})^{50}$

Or, $\frac{2246000}{3031000}$ = $(1-\frac{Rate}{100})^{50}$

Or, $\frac{2246}{3031}$ = $(1-\frac{Rate}{100})^{50}$

$(\frac{2246}{3031})^{\frac{1}{50}}$ = $( 1-\frac{Rate}{100})$

So , 0.99402 = $( 1-\frac{Rate}{100})$

Or, $\frac{Rate}{100}$ = 1 - 0.99402

So, Rate = $5.98\times 10^{-3}$ × 100

Or, Rate = 0.598 = 59.8 %

Hence The rate at which the population decrease is 59.8 % Answer

4 0

3 years ago

What is the sign of 4.3 .(-3.2) .0 ? Is it positive or negative

GenaCL600 [577]

Answer:

Zero

Step-by-step explanation:

We are given the following expression and we are to determine what is the sign of its product:

$4 . 3 . ( - 3 . 2 ) . 0$

One of the three terms in the expression is positive while one is negative. So if we start multiplying the two terms from the left side. we will get a negative number.

But when we will multiply it with zero, the whole product will become zero as anything times zero is always zero. Therefore, answer will be zero.

5 0

3 years ago

Read 2 more answers

The area of a rectangular city park is 15/56 square miles the width of the park is 3/7 miles what is length in miles of the park

Lilit [14]

5/8 is the length. Just divide 15/56 by 3/7.

3 0

3 years ago

This is for today help!!!!

Travka [436]

Answer:

Part A 73 Part B 113

Step-by-step explanation:

4 0

3 years ago