25 points
please please please please please help


Write and graph a system of inequalities..

. In order to save money for prom this weekend, Tom is going to walk his neighbor's dog for $6 per hour and wash cars for $7.50 per hour. His mother told him he can work no more than 15 hours in order to keep up with his homework. If Tom would like to make at least $75 to cover prom expenses, help him determine combinations of hours he can work between these two jobs. a.​

Answer:

1/4+6.20

Step-by-step explanation:

1/4*5 1/4*24.80

1/4 (5+24.80)

1/4s + 6.20

hope it helps

Answer:

the answer is.......

Step-by-step explanation:

c , make me brainliest

Answer:

20 and 6

Step-by-step explanation:

they will be 20 and 6

Answer:

c = 38b

Step-by-step explanation:

b = number of boxes

c = total number of cookies.

It is given to you that there are 38 cookies per box. The given equation means that The total number of cookies can be found by multiplying the amount of cookies per box with the amount of boxes in all.

c = 38b is your answer.

~

Answer:0.3 there I said it

Step-by-step explanation:

Answer:

0.3

Step-by-step explanation:

Answer:

See below.

Step-by-step explanation:

1.

3x + 7 + 10x + 17 = 180  ( property of inside angles of 2 parallel lines)

13x + 24 = 180

13x = 180 - 24 = 156

c = 156/13

x = 12.

2.

As the triangle is a right triangle:

42.7 + N = 90

N = 90 - 42.7

= 47.3. degrees.

Answer:

for the first question it will be

Step-by-step explanation:

first make the equation from the numbers you see, (3x+7)+(10x+17)=180

the 180 comes from the lines that the equations are on both of the equations add up to 180 degrees,

then first add all like numbers [(3x+10x) + (7+17) = 180]= 13x+24=180

next subtract the non-variable number (forgot the term for it)

13x+24=180

     -24  -24

      13x=156

then divide the number in front of the variable

13x=156

13    13

x=12

then once you divide the answer is shown so you can put it in

Answer: y = 3, x = 5

Step-by-step explanation:

Solution by substitution method

4x+y=23

3x-y=12

Suppose,

4x+y=23→(1)

and 3x-y=12→(2)

Taking equation (1), we have

4x+y=23

⇒y= -4x+23→(3)

Putting y= -4x+23 in equation (2), we get

3x-y=12

3x-1(-4x+23)=12

⇒3x+4x-23=12

⇒7x-23=12

⇒7x=12+23

⇒7x=35

⇒x=5→(4)

Now, Putting x=5 in equation (3), we get

y=-4x+23

⇒y=-4(5)+23

⇒y=-20+23

⇒y=3

∴y=3 and x=5

Answer:

Step-by-step explanation:

Substitution Method

[tex]\begin{bmatrix}4x+y=23\\ 3x-y=12\end{bmatrix}\\\\Isolate \:and\: solve\:for\:x :\\4x+y=23 =x=\frac{23-y}{4}\\\\\mathrm{Substitute\:}x=\frac{23-y}{4}\\\\\begin{bmatrix}3\cdot \frac{23-y}{4}-y=12\end{bmatrix}\\\\Simplify\\\\\begin{bmatrix}\frac{69-7y}{4}=12\end{bmatrix}\\\\Isolate \:and\: solve\:for\:y :\\\\\frac{69-7y}{4}=12\\\\y =3\\\\\mathrm{For\:}x=\frac{23-y}{4}\\\\\mathrm{Substitute\:}y=3\\\\x=\frac{23-3}{4}\\\\\frac{23-3}{4} =5\\\\x=5,\:y=3[/tex]

Elimination Method

[tex]\begin{bmatrix}4x+y=23\\ 3x-y=12\end{bmatrix}\\\\\mathrm{Multiply\:}4x+y=23\mathrm{\:by\:}3\:\\\mathrm{:}\:\quad \:12x+3y=69\\\\\mathrm{Multiply\:}3x-y=12\mathrm{\:by\:}4\:\\\mathrm{:}\:\quad \:12x-4y=48\\\\\begin{bmatrix}12x+3y=69\\ 12x-4y=48\end{bmatrix}\\\\12x-4y=48\\-\\\underline{12x+3y=69}\\-7y=-21\\\\Solve :-7y=-21\\\\\mathrm{Divide\:both\:sides\:by\:}-7\\\frac{-7y}{-7}=\frac{-21}{-7}\\\\Simplify\\y=3\\\\\mathrm{For\:}12x+3y=69,\\\mathrm{\:plug\:in\:}y=3\\[/tex]

[tex]Solve :12x+3\cdot \:3=69\\\\12x+9=69\\\\12x+9-9=69-9\\\\Simplify\\\\12x=60\\\\\mathrm{Divide\:both\:sides\:by\:}12\\\\\frac{12x}{12}=\frac{60}{12}\\\\Simplify\\\\x=5\\\\\mathrm{The\:solutions\:to\:the\:system\:of\:equations\:are:}\\\\x=5,\:y=3[/tex]

Answer:

100+10 = 110

110/100=1.1

4000 X 1.1^4 = 5856.4

$5856.40

Answer: $5856.40

100+10 = 110

110/100=1.1

4000 X 1.1^4 = 5856.4

$5856.40

Step-by-step explanation:

110/100=1.1

4000 X 1.1^4 = 5856.4

Answer: $5856.40

Answer:

he can fill up about 16 more

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

Really do not want to know

Answer:

Step-by-step explanation:

B

theres no constant so its y intercept is (0,0)

then the x is negative so it goes down from left to right

hope this helps <3

Answer:

The intercept of a line is the y-value of the point where it crosses the y-axis.

Step-by-step explanation:

Answer:

3 iii

Step-by-step explanation:

I hope this helps with your question :)

Answer:

iii 3

because it says 1/2 and it would only be 2 turns so one up right and one facing down I hope that helps:))))

Answer:

equivalent is the aswer

Answer:

179.76$

Step-by-step explanation:

........

........

Answer:

$176.76

Step-by-step explanation:

Question:

Leah took her friends for a ride in her hot air balloon.

The function r(t) = 210 - 15t models the height of the hot air balloon about the ground (in meters) as a function of time (in minutes) after takeoff.

Explain what r(10) means in the context of the real-world scenario, and how to find its value.

Answer:

The balloon reaches a height of 160 meters, 10 minutes after take off.

Step-by-step explanation:

Given

[tex]r(t) = 210 - 5t[/tex]

Required

Explain r(10)

First, we calculate r(10)

Substitute 10 for t in [tex]r(t) = 210 - 5t[/tex]

[tex]r(10) = 210 - 5 * 10[/tex]

[tex]r(10) = 210 - 50[/tex]

[tex]r(10) = 160[/tex]

Hence: r(10) means that the balloon reaches a height of 160 meters, 10 minutes after take off.

Answer:

(60,0)

Step-by-step explanation:

Have a good day :)

Answer:

Amount spent after sales tax = $112.58

Step-by-step explanation:

Given that:

Cost of jacket = $49.00

Cost of new Vans = $55.00

Total spent = 49.00 + 55.00 = $104.00

Sales tax = 8.25%

Amount of sales tax = [tex]\frac{8.25}{100}*104[/tex]

Amount of sales tax = $8.58

Total after sales tax = 104.00 + 8.58 = $112.58

Hence,

Amount spent after sales tax = $112.58

Answer:4 x 3 = 12 what times 19 = what

Step-by-step explanation:

Answer:

The shape is a kite and x=26

Step-by-step explanation:

The shape is a kite because the two adjacent sides at the right match and the two sides on the left match

To find x:

125+125=250

360-250=110

(3x-11)+(2x-9)=110

Combine like terms: 5x-20=110

Add 20 to both sides: 5x-20+20=110+20

5x=130

Divide both sides by 5: 5x/5=130/5

x=26

Answer:

m = 16

Step-by-step explanation:

2(4m - 5) - (6m - 11) = 33 (Given)

8m - 10 - 6m + 11 = 33 (Distribute)

2m + 1 = 33 (Combine like terms)

2m = 32 (Subtract 1 on both sides)

m = 16 (Divide 2 on both sides)

You can check by substituting your answer into the equation:

2(4(16) - 5) - (6(16) - 11) = 33

2(64 - 5) - (96 - 11) = 33

2(59) - (85) = 33

118 - 85 = 33

33 = 33

Answer:

This is incorrect, the correct answer is 2

Step-by-step explanation:

3+4+(-5)

Answer:

2

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

Answer:

sqrt 58

Step-by-step explanation:

7^2+3^2=c^2

c=[tex]\sqrt{58}[/tex]

Answer:

sqrt(58)

Step-by-step explanation:

Use the Pythagorean Theorem.

a^2 + b^2 = c^2

3^2 + 7^2 = c^2

9 + 49 = c^2

58 = c^2

c = sqrt(58)

Answer: sqrt(58)

Answer:

The Y-intercept or number after the + or - sign is what you start with then you use rise/run rise=the y value and run = x value to use the constant

Step-by-step explanation:

Answer:

the square root of 114 is 10.677 so your answer is that it lies between the numbers 10 and 11 :)

Step-by-step explanation:

Answer:

25%

Step-by-step explanation:

225,000/900,000 = 0.25

0.25*100 = 25%

Answer:

99 1/2

Step-by-step explanation:

Answer: 348

Step-by-step explanation:

Given : Total employees work = 725

Proportion of employees are post graduate = 52%

Proportion of employees are not post graduate = 100%-52% = 48%

The number of employees were not post graduate  = 48% of 725

= 0.48 x  725

= 348

Hence, the number of employees were not post graduate  = 348

Answer:

A.

Step-by-step explanation:

The domain is the x values, the range is the y values. The x values are not supposed to repeat and give different y values.

Answer: On interval f(x) is increasing =  [tex]( -\infty, -2)[/tex]

On interval f(x) is decreasing = [tex]( -\infty, -2)[/tex]

Step-by-step explanation:

The given function: [tex]f(x)=-(x+2)^2+4[/tex]

The graph of the function is attached below

In graph , function is increasing till point (-2,4) or x=-2 and then it is decreasing.

So f(x) is increasing in [tex]( -\infty, -2)[/tex] and decreasing in [tex](-2, \infty)[/tex]

So, On interval f(x) is increasing =  [tex]( -\infty, -2)[/tex]

On interval f(x) is decreasing = [tex]( -\infty, -2)[/tex]