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3 years ago

Write an equation! and make it easy to understand because well- i’m dumb

Mathematics

2 answers:

posledela3 years ago

7 0

Answer:

1 $\frac{5}{8}$

Step-by-step explanation:

When working with mixed numbers, the first thing you would want to do is make them into improper fractions so that they are easier to work with.

2 $\frac{3}{5}$ ÷ 1 $\frac{3}{5}$ = $\frac{13}{5}$ ÷ $\frac{8}{5}$

To change the ÷ sign to a × sign, swap the denominators and the numerators of the second fraction.

$\frac{13}{5}$ ÷ $\frac{8}{5}$ = = $\frac{13}{5}$ × $\frac{5}{8}$

Directly multiply. (Numerators with numerators and denominators with denominators)

$\frac{13}{5}$ × $\frac{5}{8}$ = $\frac{65}{40}$

Simplify to mixed numbers.

$\frac{65}{40}$ = 1 $\frac{25}{40}$

1 $\frac{25}{40}$ = 1 $\frac{5}{8}$

Oxana [17]3 years ago

5 0

Answer:

2 3/5 * 1 5/3

Step-by-step explanation:

You might be interested in

For every 5 boys, there are 3 girls. If there are 60 students how many boys are there?

adell [148]

Answer:

not solvable

Step-by-step explanation:

so there is a ratio of 5:3

that equals 8 parts

if you divide 60 by 8 that's 7.5

times 7.5 by 5 and you get 37.5

don't know how u get half a person but that's just how it is

8 0

3 years ago

A spherical balloon is inflated with gas at a rate of 500 cubic centimeters per minute. Find the rates of change of the radius w

-BARSIC- [3]

Answer:

for r= 70 cm

the rate is 0.008cm/s

for r=95cm

the rate= 0.0044cm/s

Step-by-step explanation:

kindly find attached a rough sketch of the circle and a detailed solution of the problem.

Given data

rate dv/dt=500cm^3

r=70cm

r=95cm

4 0

3 years ago

Find the value of x cubed minus 2x squared minus 7x + 5 of x=1/2-√3

Svetach [21]

9514 1404 393

Answer:

Step-by-step explanation:

For f(x) = x^3 -2x^2 -7x +5 and x=1/(2-√3), we have ...

f(x) = ((x -2)x -7)x +5

and ...

x = 1/(2-√3) = (2+√3)/(2^2 -3) = 2+√3

Then ...

f(2+√3) = ((2 +√3 -2)(2 +√3) -7)(2 +√3) +5

= (3+2√3 -7)(2+√3) +5

= 2(√3 -2)(√3 +2) +5 = 2(3 -4) +5 = -2 +5

f(1/(2 -√3)) = 3

_____

If you really mean x = (1/2) -√3, then f(x) = (42√3 -3)/8.

6 0

3 years ago

Find equation of the line that contains the point (4,-2) and is perpendicular to the line y= _2x+8

xz_007 [3.2K]

Answer:

y = 1/2x - 4

Step-by-step explanation:

If two lines are perpendicular to each other, they have opposite slopes.

The first line is y = -2x + 8. Its slope is -2. A line perpendicular to this one will have a slope of 1/2.

Plug this value (1/2) into your standard point-slope equation of y = mx + b.

y = 1/2x + b

To find b, we want to plug in a value that we know is on this line: in this case, it is (4, -2). Plug in the x and y values into the x and y of the standard equation.

-2 = 1/2(4) + b

To find b, multiply the slope and the input of x (4)

-2 = 2 + b

Now, subtract 2 from both sides to isolate b.

-4 = b

Plug this into your standard equation.

y = 1/2x - 4

This equation is perpendicular to your given equation (y = -2x + 8) and contains point (4, -2)

Hope this helps!

3 0

3 years ago

Read 2 more answers

If the probability that your DVD player breaks down before the extended warranty expires is 0.034, what is the probability that

schepotkina [342]

Answer:

0.966

Step-by-step explanation:

Given that:

Probability of DVD player breaking down before the warranty expires = 0.034

To find:

The probability that the player will not break down before the warranty expires = ?

Solution:

Here, The two events are:

1. The DVD player breaks down before the warranty gets expired.

2. The DVD player breaks down after the warranty gets expired

In other words, the 2nd event can be stated as:

The DVD does not break down before the warranty gets expired.

The two events here, have nothing in common i.e. they are mutually exclusive events.

So, Sum of their probabilities will be equal to 1.

$\bold{P(E_1)+P(E_2)=1}\\\Rightarrow 0.034+P(E_2)=1\\\Rightarrow P(E_2)=1-0.034\\\Rightarrow P(E_2)=\bold{0.966}$

7 0

3 years ago