June had aphids in 30% of her rose bushes. She had 40 bushes. How many plants must she release ladybugs on to eat the aphids and save the roses?

Step-by-step explanation:

-3x+7y = -18 ...1

4x-4y = 8 ...2

...1 × 4

-12x + 28y = -72 ...3

...2 × 3

12x - 12y = 24 ...4

...3 + ...4

28y - 12y = -72 + 24

16y = -48

y = -3

Replace y = -3 in ...2

4x - 4(-3) = 8

4x + 12 = 8

4x = 8 - 12

4x = -4

x = -1

Answer:

[tex]\huge\boxed{\boxed{(x,y)=(-1,-3)}}[/tex]

Step-by-step explanation:

multiply first equation by 4 and second by 3 respectively:

[tex] \begin{cases} \displaystyle - 12x + 28y = - 72 \\ \: \: \displaystyle \: 12x - 12y = 24 \end{cases}[/tex]

combine the equations:

[tex] \underline{ \begin{cases} \displaystyle - 12x + 28y = - 72 \\ \: \: \displaystyle \: 12x - 12y = 24 \end{cases}} \\ \displaystyle16y = - 48[/tex]

divide both sides by -48:

[tex] \displaystyle \: \frac{16y}{16} = \frac{ - 48}{16} \\ y = - 3[/tex]

substitute the value of y to the second equation

[tex] \displaystyle \: 4x - 4. - 3 = 8[/tex]

simplify multiplication:

[tex] \displaystyle \: 4x + 12 = 8[/tex]

cancel 12 from both sides:

[tex] \displaystyle \: 4x = - 4[/tex]

divide both sides by 4

[tex] \displaystyle \: \frac{4x}{4} = \frac{ - 4}{4} \\ x = - 1[/tex]

therefore our solution is

[tex]\displaystyle (x,y)=(-1,-3)[/tex]

Answer:

345%

Step-by-step explanation:

Answer:

1 and 2/3

Step-by-step explanation:

If

length = 1/3     and width= 1/2

then the equation will look like this,

2(1/3+1/2)

1/3+1/2= 5/6

2(5/6)= 1 and 2/3

Answer:

Step-by-step explanation:

(x-3)(x-4)/(x-4)

The (x-4)'s divide out.

Answer:

5

Step-by-step explanation:

Answer:

- 3 + 8 =5

Step-by-step explanation:

I hope this answer has helped you

Answer:

27

Step-by-step explanation:

Answer: (0.-7)

Step-by-step explanation:

Take the equation

y=x-7

The last number 7 is the Y-intercept

(0.-7)

Answer:

(0,-7)

Step-by-step explanation:

Hey There!

So we can easily find which one is a solution but taking an order pair and plugging in the x value

then we solve for y and if we get the value of y that is with the matching x value then it is a solution

for example for the first pair we plug in -1 to x

-1-7=-8

-8 does not equal -6 therefore the first one is not a solution

for the second one we plug in 0 to x

0-7=-7

-7=-7 therefore it is a solution

but lets just check the rest to be safe

for the third one we plug in 8 to x

8-7=1

-1 does not equal 1 thus it is not a solution

for the last one we plug in -1

-1-7=-8

-8 does not equal 6 therefore it is not a solution

so we can conclude that the second one is a solution

Step 1. READ THE QUESTION CAREFULLY!!!!!!

Step 2. Turn the problem into equations.

Step 3. Substitute/Eliminate variables.

Step 4. Find the first variable.

Step 5. Replace the variable1 with its correct number.

Step 6. Get your variable2.

Step 7.Do steps 3-4 until you have all the variables.

Step 8. Double check.

And you are done!

Answer:

$3,890

Step-by-step explanation:

The computation of the number of people in town registered to vote is shown below;

= People voted × registered to vote percentage

= 5,985 × 65%

= $3,890

Hence, the number of people in town registered to vote is $3,890

Question: What kind of environment is prevalent in Peter’s company?

Answer:

Autocratic environment

Step-by-step explanation:

From the question, we understand that Peter was not consulted before he was transferred to another branch.

This singular act shows that the company runs an autocratic form of leadership where the manager (or whoever is in charge of decision-making) uses absolute power when making decisions, irrespective of the motive behind the decision being made

Hence, the environment is autocratic

Answer:

Step-by-step explanation:

Area is graph 1

radius is graph 2

Circumference is graph 3

ask if you want to know  how I figured those out  :)

Answer:

3. B

4. D

Step-by-step explanation:

3. The y-intercept is -4 and the slope is positive 2.

4.Substitute the values and check

Answer and Step-by-step explanation:

3.

Before we look at the answer choices, lets analyze the graph.

We see that as the graph goes right, the y values are positive, and that as the graph goes left, the y values become negative/decrease. (Graph, as in the line on the graph).

That means the graph has a positive slope. So we can get rid of any negative slopes (answer choices A and C).

Now, we look to see the rate of change of the graph. How many units does the graph go up and right right?

We see that the graph has a rate of change of 2, so that is the slope.

This means that answer choice B is the answer. The equation shows that it goes down 4 units as well, which is what the graph shows as well.

4.

For this one, we need to see the pattern in the table.

When we put 2 in for n, we get 6. When we put 3 in for n, we get 8. And when we put 4 in for n, we get 10.

Answer choice D works for this. If we plug 2, 3, and 4 in for this expression, we get:

2(2) + 2 = 4 + 2 = 6

2(3) + 2 = 6 + 2 = 8

2(4) + 2 = 8 + 2 = 10

So answer choice D is the answer.

#teamtrees #PAW (Plant And Water)

Answer:

175

Step-by-step explanation:

hey! so it's basically an "estimate" meaning that you can round all the measurements up to the nearest whole number. and since finding the prism's volume is l*h*w divided by 2, i did 7*5*10 and got 350. half of 350 is 175 which is the volume of the prism :)

Answer:

175

Step-by-step explanation:

the formula of triangular prism is

v = 1÷2( b×h×l)

base (b) =5.1cm

height( h) = 6.9

length ( l) = 9.9

v =1÷2 ( 5.1 × 6.9× 9.9 )

v = 174.19 cm^3

so th closest will be 175cm^3

Answer:

99          pls five me brainiest

Step-by-step explanation:

180-123=57

180-57-42=81

180-81=99

Answer: first one

Step-by-step explanation:

Answer:nooooo

Step-by-step explanation:

fsdf

Answer:

-2/3x+3

Have a nice day.

Answer: 226.08 goes into 2034.72 9 times.

Step-by-step explanation: I hope this helped you!!!!! Have a great day. And stay safe!!!

Answer:

116

Step-by-step explanation:

Just took test

Answer:

116 brotha

Step-by-step explanation:

Answer: 56

Step-by-step explanation:

Howard is incorrect the right answer is 56.

a. 5

b. 6

c. 8

d. 10

e. 12

f. 15

Answer:

a) 5

b) 6

c) 8

d) 10

e) 12

f) 15

Answer:

Step-by-step explanation:

look at each picture to see what they are stating is the same in each of the triangles... the marks thur the lines means they are the same length, or the double or triple arcs in the angles means those are the same.  so if there are two sides that are the same... you can say SSS , if there are two angles that are the same you can say  ASA  .  the one where there is one side and one angle the same  you can say SAS .... hmmm  kinda get it?

Answer:

41

Step-by-step explanation:

Hey There!

So to solve this problem the first thing that we want to do is solve for x

angle P and angle S are supplementary angles meaning that they will add up to equal 180

so 180=8x+3+2x+7

step 1 combine like terms

8x+2x=10x

3+7=10

now we have

180=10x+10

step 2 subtract each side by 10

180-10=170

10-10 cancels out

now we have

170=10x

step 3 divide each side by 10

10/10 cancels out

170/10=17

so x=17

So remember in parallelograms opposite angles are congruent so angle Q is congruent with angle S

so we just plug in 17 into 2x+7 and we will get the value of angle Q

17x2=34

34+7=41

so angle Q = 41

Answer:

Step-by-step explanation:

[tex]\frac{a}{A}=\frac{\theta }{360^o}\\ \\ a=\frac{\pi r^2 \theta}{360^o}\\ \\ a=\frac{\pi (8.7)^2(126^o)}{360^o}\\ \\ a=\frac{9536.94\pi}{360}in^2\\ \\ a\approx 83.23 in^2[/tex]