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3 years ago

I NEED SOMEONE TO SOLVE THESE FOR ME. I NEED THE WHOLE PROBLEM SOLVED NOT JUST THE ANSWER.

Mathematics

2 answers:

dimaraw [331]3 years ago

8 0

Answer:

1. x=11/4

Step-by-step explanation:

$\frac{3}{5} x - \frac{3}{4} = \frac{9}{10}$

u should x 20 then u will get

$12x - 15 = 18$

$12x = 18 + 15$

$12x = 33$

$x = \frac{33}{12}$

$x = \frac{11}{4}$

BlackZzzverrR [31]3 years ago

4 0

Answer:

Step-by-step explanation:

3/5x-3/4=9/10

3/5x=9/10+3/4 find common denominator

3/5x=33/20 divide by 3/5

x=11/4

6/7+2/5x=-4/5 move 6/7 to other side

2/5x= -4/5-6/7 find common denominator

2/5x= - 58/35 divide by 2/5

x= -29/7

5/8=5/6x-2/3 move -2/3 to other side

5/8+2/3=5/6x find common denominator

31/24=5/6x divide by 5/6

x=31/20

17/20-4/5x= -3/10 move 17/20 to other side

-4/5x=-3/10-17/20 find common denominator

-4/5x=-23/20 divide by -4/5

x= 23/16

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What are all numbers proportional to 20/5

maks197457 [2]

Answer: 100/25 and 4/1 and 60/15

Step-by-step explanation:

20/5=4, 100/25=4, 4/1=4, and 60/15=4

8 0

3 years ago

Why is the product of 5/4 and 4 larger than 4?

zubka84 [21]

A simple answer is because 4 and 5/4 is equal to 5 and 1/4. Because 5/4 is 1/4 more than 4/4, or 1.

5 0

3 years ago

PLEASE HELP! I HAVE A TIME CRUNCH! WILL MARK BRAINLIEST!! LOVE Y'ALL Fill in each * so that the statement is true.

siniylev [52]

Answer:

a, (x^2)^3 = x^6 = x^2.x^4

b, x^5·x^7 = x^12 = (x^3)^4

c, x^4·x^22 = x^26 = (x^2)^13

d, (x^2)^8 = x^16 = x^2.x^14

e, x^10/x^3 = x^7 = x^20.x^(-13)

f, x^(-3) = x^4.x^(-7)

g, 1/x^(-3) = x^3 = x^4.x^(-1)

Hope this helps!

6 0

3 years ago

Find the mass and center of mass of the lamina that occupies the region D and has the given density function rho. D is the trian

Pachacha [2.7K]

Answer:

m=1/300 du

Step-by-step explanation:

we have that m=∫∫rho(x,y)dA for this we must find the limits of integration (according to the graph1)

On the x axis: if y=2x and x+2y=1 then y=2x and y=(1-x)/2 ⇒ 2x=(1-x)/2 ⇒ 4x=1-x ⇒ 5x=1 ⇒ x=1/5; on the y axis y=0 and y=1/2

m=∫∫rho(x,y)dA (view the graph 2)

4 0

3 years ago

Find the gradient of the curve y=-x^-3-5x^2+7x at x=2

Harman [31]

-8

Step-by-step explanation:

The gradient or slope of a curve y is simply the derivative of the curve at a point x. So we can proceed as follows

$\dfrac{dy}{dx} = \dfrac{d}{dx}(x^3 -5x^2 +7) = 3x^2 -10x$

Evaluated at x = 2, the gradient of the slope is

$\left.\dfrac{dy}{dx}\right|_{x=2} = 3(2)^2 - 10(2) = -8$

5 0

2 years ago