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3 years ago

Can someone help me and tell me how u got it

Mathematics

2 answers:

Elena-2011 [213]3 years ago

8 0

The answer is A
a. first you subtract 11 from 15 to get 4
b. then you find the LCM of 12 and 8 which is 24
c. divide 24 by 12 and multiply by 5=10
d. divide 24 by 8 and multiply by 1=3
e. subtract your answer in d. from c. = 10-3=7
your answer in e over your LCM
your final answer =option A

sladkih [1.3K]3 years ago

6 0

Here is your first answer: First find the multiple which is 24 12*2=24 and 8*3=24 (denominator is 24) 5*2=10 and 1*3=3 then subtract 10-3=7 Then subtract the whole numbers 15-11=4 Your first answer is 4 7/24 or A. Here is your second answer: First find the multiple which is 80 8*10=80 and 10*8=80 (denominator is 80) 5*10=50 and 3*8=24 then subtract 50-24=26 26/2=13 and 80/2=40 Your answer is 13/40 or A

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TIVITY MODULE

bezimeni [28]

Answer: Length: 4, width: 6

Step-by-step explanation:

Let the length be x and width be y

Then x=2y-8 and xy=24

Substitute to get 2y-8 * y = 24, so 2y^2-8y=24 or y^2-4y=12, then solve to get y=6 or y=-2. Since width is positive y=6.

Substitute y=6 into xy=24 to get x=4.

Length: 4, width: 6

Hope that helped,

-sirswagger21

6 0

3 years ago

Select the two values of x that are roots of this equation. 2x-5=-3x2

anygoal [31]

Answer:

Step-by-step explanation:

4 0

3 years ago

Compute the missing data in the table for the following exponential function f (x) = (one-fourth) Superscript x.

aliina [53]

Answer:

$F(4) = \frac {1}{256}$

Step-by-step explanation:

Given the following mathematical function;

$F(x) = \frac {1}{4^{x}}$

When x = 1

$F(1) = \frac {1}{4^{1}}$

$F(1) = \frac {1}{4}$

When x = 2

$F(2) = \frac {1}{4^{2}}$

$F(2) = \frac {1}{4*4}$

$F(2) = \frac {1}{16}$

When x = 3

$F(3) = \frac {1}{4^{3}}$

$F(3) = \frac {1}{4*4*4}$

When x = 4

$F(4) = \frac {1}{4^{4}}$

$F(4) = \frac {1}{4*4*4*4}$

$F(4) = \frac {1}{256}$

When x = 5

$F(5) = \frac {1}{4^{5}}$

$F(5) = \frac {1}{4*4*4*4*4}$

$F(5) = \frac {1}{1024}$

8 0

3 years ago

A man has two more nickels than dimes. He has $1.15 in all. How many coins of each kind does he have?

zhannawk [14.2K]

Answer:

Man has 9 Nickels and 7 dimes.

Step-by-step explanation:

Let Number of dimes be x

and Number of Nickels be y

As Per given data he has two more nickels than dimes.

$y= 2+x\\$

As we know that

1 $\$$ = 100 cent

1 nickel is worth = 5 cents = $\frac{5}{100}$ = 0.05 $\$$

1 dime is worth = 10 cents = $\frac{10}{100}$ 0 .1 $\ $$

According to given data he has $\$\ 1.15$ total nickel and dimes

So the equation becomes,

$0.05y+0.1x=1.15$

but $y= 2+x$

$0.05(2+x)+0.1x=1.15\\0.1+0.05x+0.1x=1.15\\0.1+0.15x= 1.15\\0.15x= 1.15-0.1\\0.15x=1.05\\x=\frac{1.05}{0.15}= 7$

Substituting value of x in equation $y = 2+x$ we get

$y= 2+7 =9$

Man has 9 Nickels and 7 dimes.

5 0

3 years ago

The product the lies between__and__. 3×3/4?

cupoosta [38]

Saying 3/4 * 3 is the same thing as saying 3/4 of 3. Imagine you have 3 pies, each cut into 4 slices. That would be 3 * 4 = 12 slices of pie, right?
So when there's 12 slices, that would be 4/4 of the pies, since all the pieces are there.
To find out how many pies we would have with 3/4 of the pie left, we just need to multiply the original equation.

3 * 3/4 = 2 1/4

The product of those two numbers lies between 2 and 3.
Hope that helped =)

7 0

3 years ago