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2 years ago

Please solve 5/4+( -4 1/3)=?

Mathematics

1 answer:

frosja888 [35]2 years ago

8 0

Step-by-step explanation:

$\frac{5}{4} + ( - 4 \times \frac{1}{ 3} ) \\ \\ \frac{5}{4} - \frac{4}{3} \\ \\ \\ \frac{15 - 16}{12} \\ \\ \frac{1}{12 }$

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Identify the parent function that can be used to graph the function f(x)=2[x-6]

zhannawk [14.2K]

Answer:

F(x) =2(1/2 x2-6x) +C

Step-by-step explanation:

Hope it helps

6 0

3 years ago

Express M in terms of B and n: B = 3Mn 2

Molodets [167]

We are given the expression B=3Mn/2 and told to express M in terms of B and n. This means that we should apply mathematical operations on both sides of the equation so we "isolate " M on one side of the equality sign. We begin with the given equation

$B=\frac{3\cdot M\cdot n}{2}$

First, we multiply both sides by 2, so we get

$2\cdot B=3\cdot M\cdot n$

Next, we divide by 3 on both sides, so we get

$\frac{2\cdot B}{3}=M\cdot n$

Finally, we divide both sides by n, so we get

$\frac{2\cdot B}{3\cdot n}=M$

In this case, we have succesfully expressed M in terms of B and n

5 0

1 year ago

A bookmark has a perimeter of 46 centimeters and an area of 102 square centimeters. What are the dimensions of the bookmark?

Alinara [238K]

Answer:

6 cm by 17 cm

Step-by-step explanation:

The area is the product of the dimensions; the perimeter is double the sum of the dimensions.

So, we want to find two numbers whose product is 102 and whose sum is 23.

102 = 1·102 = 2·51 = 3·34 = 6·17

The last of these factor pairs has a sum of 23.

The dimensions are 6 cm by 17 cm.

3 0

3 years ago

Elizabeth has $10, $5, and $1 bills worth $101. she has five more five dollar bills than ten dollar bills and 4 times more 1 dol

vesna_86 [32]

Let x be number of $10 dollar bills

Let y be number of $5 dollar bills

Let z be number of $1 dollar bills

From the question, we can come up with three equations (so we can find the values of x, y & z) :

10x + 5y + z = 101
y - x = 5
z = 4x

The first equation comes from finding the total money Elizabeth has, which is $101.

The second equation comes from value of y (number of $5 bills) is more than value of x (number of $10 bills) by 5 dollars.

The third equation comes from the value of z (number of $1 bills) being 4 times more than the value of x (number of $10 bills).

Now, we will begin to find the value of x, y & z.

From the first equation,

10x + 5y + z = 101

Substitute the third equation (z = 4x) into z:

10x + 5y + 4x = 101

Simplify this and you get,

14x + 5y = 101

Now, we use the second equation. The second equation is y - x = 5. If we try to make y as the subject, it becomes y = 5 + x.

Now, substitute this into the value of y of the last working we did:

14x + 5(5+x) = 101

Simplify that and it becomes:

x = 4

Then, substitute this value of x into the second and third equations to find y and z.

y - x = 5

y - 4 = 5

y = 9

z = 4x

z = 4(4)

z = 16

Finally, let's check these answers by substituting them into the first equation to try and see if the total value is <em>really</em> $101.

10x + 5y + z = 10(4) + 5(9) + 16

10x + 5y + z = 40 + 45 + 16

10x + 5y + z = 101

Thus, our answers are correct. Elizabeth has FOUR $10 bills, NINE $5 bills and SIXTEEN $1 bills.

6 0

3 years ago

Read 2 more answers

The Peach Festival charges $12 for admission and $2.25 for each pound of peaches picked. Write an equation for the total cost y

Airida [17]

<h2>Answer:y=12+2.25x,$23.25</h2>

Step-by-step explanation:

It is given that $ $12$ is charged for admission.

It is given that $ $2.25$ is charged for each pound of peaches picked.

So,cost for $x$ peaches is $2.25x$

The total cost of admission and picking $x$ peaches is $12+2.25x$

When $x=5$ ,

total cost is $12+2.25(5)=12+11.25=23.25$

So,it costs $ $23.25$ for admission and picking $5$ peaches.

5 0

3 years ago