HELP ME PLZ I NEDD A ON ThIS SO GET ME RIGHT I WELL GIVE BAIRELEST thank you

Answer:

10

Step-by-step explanation:

Answer:2y+7x

5y−7x

​

=−5

=12

​

We notice that the first equation has a 7x7x7, x term and the second equation has a -7x−7xminus, 7, x term. These terms will cancel if we add the equations together—that is, we'll eliminate the xxx terms:

\begin{aligned} 2y+\redD{7x} &= -5 \\ +~5y\redD{-7x}&=12\\ \hline\\ 7y+0 &=7 \end{aligned}

2y+7x

+ 5y−7x

7y+0

​

=−5

=12

=7

​

​

Solving for yyy, we get:

\begin{aligned} 7y+0 &=7\\\\ 7y &=7\\\\ y &=\goldD{1} \end{aligned}

7y+0

7y

y

​

=7

=7

=1

​

Plugging this value back into our first equation, we solve for the other variable:

\begin{aligned} 2y+7x &= -5\\\\ 2\cdot \goldD{1}+7x &= -5\\\\ 2+7x&=-5\\\\ 7x&=-7\\\\ x&=\blueD{-1} \end{aligned}

2y+7x

2⋅1+7x

2+7x

7x

x

​

=−5

=−5

=−5

=−7

=−1

​

The solution to the system is x=\blueD{-1}x=−1x, equals, start color #11accd, minus, 1, end color #11accd, y=\goldD{1}y=1y, equals, start color #e07d10, 1, end color #e07d10.

We can check our solution by plugging these values back into the original equations. Let's try the second equation:

\begin{aligned} 5y-7x &= 12\\\\ 5\cdot\goldD{1}-7(\blueD{-1}) &\stackrel ?= 12\\\\ 5+7 &= 12 \end{aligned}

5y−7x

5⋅1−7(−1)

5+7

​

=12

=

?

12

=12

​

Step-by-step explanation:

40 divided by 8 = 5

Mark Me Brainliest Please

Answer:

try 2+2 that should work

Answer:

A

Step-by-step explanation:

2 and 1/2 is can be written as 5/2

5/2 cups of soda for every 2/5 cup of pineapple juice

Unit rate means per 1 of something, in this case pineapple juice

5/2 per 2/5  or (5/2) / (2/5)

5/2 ÷ 2/5 = 25/4 or 6 and 1/4

680 grams.

So, it's telling us to calculate the weight, in grams, of the other rock.

So firstly,

6 of the rocks EACH have a weight of 720 grams.

So, 6 x 720 = 4320

Now save 4320 for later.

Next, we need to convert the 5 kilograms into grams.

So, 5 x 1000 = 5000

now do, 5000 - 4320 = 680.

Your final answer would then be = 680g

I hope this helped.

6(-3x+8)=-3(5x +4)

Distributive property:

-18x + 48 =  -15x -12

Add 15x to both sides:

-3x + 48 = -12

Subtract 48 from both sides:

-3x = -60

Divide both sides by -3:

x = -60 / -3

x = 20

Answer:

11 in

Step-by-step explanation:

1 in=270 ft

2970/270=11

Answer:

2.7 million euros per month

Step-by-step explanation:

Since the room is a rectangular prism, we find the area of the room without its top and bottom, which is the area of the walls, A. So,

A = 2(lh + wh) = 2h(l + w) where l = length of room = 50 m, w = width of room = 40 m and h = height of room = 75 m

Substituting the values of the variables into A, we have

A = 2h(l + w)

= 2(75 m)(50 m + 40 m)

= 150 m × 90 m

= 13500 m²

= 13500 × 1m²

= 13500 × 10000 cm²

= 135000000 cm²

= 1.35 × 10⁸ cm²

Now, since 50 cm² of space = 1 Euro per month, then 1.35 × 10⁸ cm²

= 1.35 × 10⁸ cm² × 1 Euro per month/50 cm²

= 0.027 × 10⁸ Euro per month

= 2.7 × 10⁶ Euro per month

= 2.7 million euros per month

So, the institute will earn 2.7 million euros per month

Answer:

The completed table is shown below

Step-by-step explanation:

Proportional Relationship

Two variables H and M have a proportional relationship if the following equation is satisfied:

M = kH

Where k is the constant of proportionality.

The table shows one complete point: H=1.5, M=6. This allows us to find the value of k:

6 = 1.5k

k = 6/1.5 = 4

Now we know the complete relationship between distance and time:

M = 4H

To complete the table, we just give the required values and calculate the corresponding value.

For H=0 hours, M=4*0 = 0 miles

For H=0.5 hours, M=4*0.5 = 2 miles

For H=1 hours, M=4*1 = 4 miles

For H=6.5, M=4*6.5 = 26 miles

For M=12 miles, H=12/4 = 3 hours

The completed table is shown below

answer: 15

there is 15 left.

Answer:

Step-by-step explanation:

Vertex of the given parabola is (4, 160)

Since, graph of the parabola is increasing between x = 0 to x = 4,

Profit earned will be between t = 0 and t = 4

Therefore, domain represents the number of years.

Since, profit of the outlet (y-values) vary from x = 0 to x = 10

And value of profit varies from 0 to 160 thousand dollars, so the range of the function will be (0, 160)

Range of the function represents the outlet's profit.

We round up to 97 and the divide to the point it can to be divided anymore

Answer: True

Step-by-step explanation:

The inequality is always True

Answer:

x=52

Step-by-step explanation:

since its an isosceles triangle, both sides are to have the same length.

so x+10+x+10+3x=180(all angles added in a triangle gives 180)

5x+20=180

5x=180-20

5x=160

x=160/5

x=52

Answer:

to find answers we first need the radius , in this case we find it using arc length

arc length = [tex]\frac{115}{360}*2\pi r[/tex]

18.07=[tex]\frac{115}{360}*2\pi r[/tex]

18.07=[tex]\frac{230\pi r}{360}[/tex]

18.07x360=[tex]230\pi r[/tex]

r=[tex]\frac{18.07*360}{230\pi }[/tex]

r=9cm

1) area of minor sector= [tex]\frac{115}{360}*\pi r^{2}[/tex]

                                     =[tex]\frac{115}{360}*\pi* 9^{2}[/tex]

                                     = 81.29[tex]cm^{2}[/tex]

2) perimeter of the circle is the same as its circumference which is [tex]2\pi r[/tex]

circumference=[tex]2\pi r[/tex]

                       = [tex]2*\pi *9[/tex]

                        =56.55cm

Step-by-step explanation:

Answer:

44.2

Step-by-step explanation:

Nick was thinking of a number

Let the number be x

= 98.4/2

= 49.2

= 49.2-5

= 44.2

Hence the number Nick was thinking of is 44.2

Answer:

8, 640

Step-by-step explanation:

It just is :) hope it helps

Answer:

Yes, you can

Step-by-step explanation:

As a point of reference, assume the equation is:

[tex]y = 5x[/tex]

Where

[tex]y = total\ cost[/tex]

and

[tex]x = pounds[/tex]

In standard unit of conversion:

[tex]1\ pound = 0.4793\ quart[/tex]

So:

[tex]x\ pounds = 0.4793x\ quart[/tex]

Substitute 0.4793x for x in [tex]y = 5x[/tex]

[tex]y = 5 * 0.4793x[/tex]

[tex]y = 2.3965x[/tex]

The above equation is the equivalent of [tex]y = 5x[/tex] in quarts

So, irrespective of what the equation is, you can always substitute quarts into the equation.

Answer:

A skateboarder travels down 2 meters a second

Step-by-step explanation:

The slope is 4 / 2 = 2

5 star, thank, and brainliest if helpful!

Answer:

Below

Step-by-step explanation:

Sides that are larger have bigger opposite angles, so smaller sides have smaller opposite angles, so:

1.

Angle R

Angle P

Angle Q

2.

Angle J

Angle L

Angle K

Answer:

147,000N

Step-by-step explanation:

A1= 2m^2

A2= 0.2m^2

F2= 14,700N

Required

F1, the applied force

Applying the formula

F1/A1= F2/A2

substute

F1/2=14700/0.2

2*14700= F1*0.2

29400= F1*0.2

F1= 29400/0.2

F1=147,000N

Hence, the applied force is 147,000N

Answer:

0.0047

Step-by-step explanation:

there is no step by step explanation to this

It would be equal to 0.0047!

Answer:

suppose

x+122=180

x=180-122

x=58

then

x+w+33=180

58+w+33=180

w=180-91

w=89

Answer:

7 years

Step-by-step explanation:

800/100= 8  8x8=48

448/48=7

sorry if im wrong i tried

if i am wrong then the answer is 6 but try the 7 years choice first