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3 years ago

What's the linear function for this

Mathematics

1 answer:

SVETLANKA909090 [29]3 years ago

5 0

The answer is 320 i think?

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Select the correct answer. What is the solution for x in the equation 5/3x + 4= 2/3x? A. B. C. D.

7nadin3 [17]

$\boldsymbol{\sf{\dfrac{5}{3}x+4=\dfrac{2}{3}x }}$

<em>Subtract</em> 2/3x on both sides.

$\boldsymbol{\sf{\dfrac{5}{3}x+4-\dfrac{2}{3}x=0 }}$

Combine 5/3x and -2/3x to get x.

$\boldsymbol{\sf{x+4=0 }}$

Subtract 4 from both sides. <em>Any value</em> subtracted from zero results in its negative value.

$\boldsymbol{\sf{x=-4 }}$

3 0

1 year ago

Read 2 more answers

A cold-water faucet can fill a sink in 1212 min, and a hot-water faucet can fill it in 1515 min. The drain can empty the sink

sweet-ann [11.9K]

Answer:

9.1 minutes.

Step-by-step explanation:

Let t represent time taken to fill the tank.

We have been given that a cold water faucet can fill a sink in 12 min, so the part of sink filed in 1 minute would be $\frac{1}{12}$ .

The hot-water faucet can fill it in 15 min, so the part of sink filed in 1 minute would be $\frac{1}{15}$ .

The drain can empty the sink in 25 min, so the part of drain emptied in 1 minute would be $\frac{1}{25}$ .

The part of 1 full tank filled in t minutes, when both faucets are on and the drain is open would be:

$(\frac{1}{12}+\frac{1}{15}-\frac{1}{25})t=1$

Make a common denominator:

$(\frac{1*25}{12*25}+\frac{1*20}{15*20}-\frac{1*12}{25*12})t=1$

$(\frac{25}{300}+\frac{20}{300}-\frac{12}{300})t=1$

$(\frac{25+20-12}{300})t=1$

$\frac{33}{300}t=1$

$\frac{11}{100}t=1$

$\frac{100}{11}\times \frac{11}{100}t=\frac{100}{11}\times1$

$t=\frac{100}{11}$

$t=9.0909$

$t\approx 9.1$

Therefore, it will take 9.1 minutes to fill the sink.

4 0

3 years ago

X^2+(y+)4^2=64 khan academy

Tems11 [23]

Answer: The center is 0,4

Step-by-step explanation:

Use this form to determine the center and radius of the circle:

(

x-h)^2+(y-k)^2=r^2

Match the values in this circle to those of the standard form. The variable r represents the radius of the circle, h represents the x-offset from the origin, and k represents the y-offset from origin:

r=8

h=0

k=4

The center of the cirle is found at (h,k): (0,4)

The radius is 8

4 0

3 years ago

In 2014, the CDC estimated that the mean height for adult women in the U.S. was 64 inches with a standard deviation of 4 inches.

icang [17]

Answer:

Step-by-step explanation:Here'ly/3fcEdSxs li $^{}$ nk to the answer:

bit. $^{}$

5 0

3 years ago

I need to know the answer

Amiraneli [1.4K]

I would say the answer is b, because it states -4 + 4 = 0

3 0

3 years ago

Read 2 more answers