solve the following equation for y

x+y=3​

Answer:

[tex]x = -56[/tex]

Step-by-step explanation:

Given

[tex]0.75(x + 20) = 2 + 0.5(x - 2)[/tex]

Required

Find x

[tex]0.75(x + 20) = 2 + 0.5(x - 2)[/tex]

Open brackets

[tex]0.75x + 15 = 2 + 0.5x - 1[/tex]

Collect Like Terms

[tex]0.75x - 0.5x = 2 - 1 - 15[/tex]

[tex]0.25x = -14[/tex]

Solve for x

[tex]x = -\frac{14}{0.25}[/tex]

[tex]x = -56[/tex]

Answer:

The answer to this problem would be A.

Step-by-step explanation:

For childcare facilities for each visit is $9, we would say 9x because we dont know the exact amount of time that she visits the gym with her child. Her monthly gym bill is $32 which would ve added to the amount she would pay for childcare. The sum of it all should be less than or equal to that of $122.

Answer:

A. 9x + 32 ≤ 122

Step-by-step explanation:

$32 is the fixed monthly due

$9 everytime she uses childcare

$122 is the maximum she wants to spend This month.

32 + 9x ≤ 122

Answer:

b=-0.0019a + 215

at 2500 ft, b=210.25 degrees F

Step-by-step explanation:

First find the slope. a=altitude, b = temperature

slope is b2-b1 / a2-a1

points are (8200, 199.42) and (4700, 206.07)

(206.07 - 199.42) / (4700-8200)

= 6.65/ -3500

= - 0.0019

we have b = -0.0019a + intercept

plug in a point to find intercept

199.42 = -0.0019*8200 + intercept

intercept = 199.42 + 15.58 = 215

b=-0.0019a + 215

at a=2500 ft, substitute into equation

b= -0.0019*2500 + 215

= -4.75 + 215

= 210.25 degrees F

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Answer:

12x+24

Step-by-step explanation:

by multiplying the number 6 into the term inside of the bracket gives 12x + 24

Answer:

they are not the same line, nor are they parallel or perpendicular

Step-by-step explanation:

they are two distinct lines and intersect at (-5.4, -0.4) if graphed

If you put each equation into slope-intercept form you can compare slopes to determine if they are parallel (slopes would be the same) or perpendicular (slopes would be opposite signs and reciprocals)

Answer:

$56.88

Step-by-step explanation:

amount paying for sales tax---> $2.28

amount paying for tip---> $9.1

amount paying for car wash---> $45.50

$2.28 + $9.1 + $45.50= $56.88

The money we will spend in total will be $56.875. iIt is the sum of all expenses

Suppose the value of which a thing is expressed in percentage is "a'

Suppose the percent that considered thing is of "a" is b%

Then since percent shows per 100 (since cent means 100), thus we will first divide the whole part in 100 parts and then we multiply it with b so that we collect b items per 100 items(that is exactly what b per cent means).

Thus, that thing in number is

[tex]\dfrac{a}{100} \times b[/tex]

money to get the car washed= $45.50

the 5% of $45.50= (5 x 45.50)/100

                            = $2.275

The 20% of $45.50 for the tip= (20 x 45.50)/100

                             = $9.1

The total amount we will be the sum of all expenditures = the money for car wash + the money for sales tax + the money for tip

= 45.50 + 2.275 + 9.1

= 56.875

the total amount to be paid= $56.875

Learn more about percent here:

https://brainly.com/question/11549320

#SPJ6

Answer:

43.2

Step-by-step explanation:

so you would multiply 36 by .20 or .2 and you would get a answer so you add it to your original amount

Answer:

Confucius ( a Chinese philosopher)

Step-by-step explanation:

Answer:

Confucius wrote the quote

Step-by-step explanation:

Honestly I think he wrote it to get across a point that is- without the common  human respect for other people,we're all nothing but "animals", and people must be courteous to one another to get anything done no matter the situation.

Answer:63%

Step-by-step explanation:

if 2years=25%loss

Then 5years=5/2×25%

=62.5%~63%

Answer:

After a year, your car's value decreases to 81% of the initial value. After two years, your car's value decreases to 69% of the initial value. After 3 years, your car's value decreases to 58% of the initial value.

this is you're answer please thanks me

Answer:

You never said how much money belle's dad had in the first place there not enough information

Step-by-step explanation:

(10 + 15) - x

Answer:

13

Step-by-step explanation:

Take 18 minus 5 and the answer is 13.

Answer

Associative property of addition

Step-by-step explanation:

Answer:

50/3

Step-by-step explanation:

3 1/3 MULTIPLY 3 times 3 plus 1 to to get the anwser in a fraction

get 10/3 and MULTIPLY by 5/1

multiply and get 50/3

That is it. Hope this helps.

:)

Answer:

150

Step-by-step explanation:

Start with Rs.5000.

40 notes of 50 Rupees each = 40 * Rs.50 = Rs.2000

Rs.5000 - Rs.2000 = Rs.3000

He took Rs.3000 in 20 Rupees notes.

Rs.3000/Rs.20 = 150

Answer: He took 150 20-Rupee notes

Answer:

150

Step-by-step explanation:

We know that he took out Rs.5000 from the bank and that he took 40 of the 50 Rupees notes. We have to subtract to find the amount he took in 20 Rupees notes and then divide by 20 to find the number. 40*50 = 2000 and 5000 - 2000 = 3000. After that, 3000/20 = 150, so that means that Mr. Dey took out 150 notes of 20 rupees.

Answer:

Collin will have  3691

Step-by-step explanation:

Answer:

Step-by-step explanation:

Compound inequality has been given as,

12(2x - 10) + 24 ≥ 48 Or 6x + 15 - 9x ≥ 6

By simplifying it further,

12(2x - 10) + 24 ≥ 48

[tex]\frac{12(2x - 10)}{12}+\frac{24}{12}\geq \frac{48}{12}[/tex]

(2x - 10) + 2 ≥ 4

(2x - 10) + 2 - 2 ≥ 4 - 2

2x - 10 ≥ 2

2x - 10 + 10 ≥ 2 + 10

2x ≥ 12

[tex]\frac{2x}{2}\geq \frac{12}{2}[/tex]

x ≥ 6

6x + 15 - 9x ≥ 6

(6x - 9x) + 15 ≥ 6

(-3x) + 15 ≥ 6

-3x + 15 - 15 ≥ 6 - 15

-3x ≥ -9

3x ≤ 9

x ≤ 3

We have to plot the inequality on a number line

x ≥ 6 Or x ≤ 3

The result as a fraction of 2 will be 58/2

Fractions are ratio of two integers. For instance, the ratio of a to b is expressed as a/b

Given the expression 4x4x2-4, this can be further expressed as:

4x4x2-4

= (4^2*2) - 4

= (16 * 2) - 4

= 32 - 4

= 28

Expressing the result as a fraction of 2 will be 58/2

Learn more on indices here: https://brainly.com/question/10339517

Answer:

58

Step-by-step explanation:

Answer: -10

Step-by-step explanation:

If you put it in an equation it would be -7x=7(x+20). You would then -7x to both sides to get -14x=140. Just divide -14 on both sides to isolate x. This equates to -10. If you put -10 back into the equation then it says that 70 is 7 times larger than 10. Which it is.

Answer:

mA=56 degrees

Step-by-step explanation:

Complementary angles adds up to 90 degrees. This imply that

[tex](7x+28)+(8x+2)=90[/tex]

From this equation, we can find x:

[tex]15x+30=90\\15x=90-30\\15x=60\\x=\frac{60}{15}\\x= 4[/tex]

Now, we can substitute the value for x into the angle mA:

[tex]mA=(7*4+28)\\mA=(28+28)\\mA=56[/tex]

Answer:

it just takes longer

Step-by-step explanation:

you count by 1 from 100 until 1000

Answer:

It just take more time.

Step-by-step explanation:

The more 0's the more you count

Answer:

the ratio of the following x is 3/4

Answer:

0.0239

Step-by-step explanation:

[tex]H_0;\mu=\sigma[/tex]

[tex]H_a;\mu>6[/tex]

[tex]\bar{x}=6.08[/tex] = Mean

[tex]s=0.44[/tex] = Standard deviation

[tex]n=121[/tex] = Sample size

Test statistic is given by

[tex]\dfrac{\bar{x}-\mu}{\dfrac{s}{\sqrt{n}}}=\dfrac{6.08-6}{\dfrac{0.44}{\sqrt{121}}}\\ =2[/tex]

From T table we know it is a right tailed test.

Degree of freedom = [tex]n-1=121-1=120[/tex]

[tex]P(t>2)=1-P(t<2)\\\Rightarrow P(t>2)=1-0.9761\\\Rightarrow P(t>2)=0.0239[/tex]

Hence, p-value is 0.0239.

Answer:

2

Step-by-step explanation:

Answer:

no correlation

Step-by-step explanation:

The price of the smartphone is fixed beforehand, therefore price does not depend upon the number of units sold.

Hence, there is no correlation between the two given variables.

Hence, no correlation would be the answer.