Solving systems of equations using the substitution method 2x+4y=34

Answer:

4480

Step-by-step explanation:

Answer:

4,480

Step-by-step explanation:

39+5=44

44+768=812

812+3668=4,480

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Answer: The x-intercepts of the parabola are (2,0) and (4,0).

Step-by-step explanation:

Answer:

3

Step-by-step explanation:

4y+3x

4(-3)+3(5) Plug the numbers into the equation.

-12+15

3

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Answer:

118, 62

Step-by-step explanation:

We can set a system of equations where x and y are the two angles and x is the larger one

x+y=180

x-y=56

If we subtract the second equation from the first, we get 2y=124, simplifying that, we get y=62. Plugging it into either equation, we get x=118. We can check that 118 is 56 larger than 62, which it is. Thus, x=118, y=62.

Answer:

2,0

Step-by-step explanation:

Answer:

102cm^3

Step-by-step explanation:

v=l×w×h

10x6x7=420 cm^3

the volume of water+stone=

10×6×(7+1.7)

522cm^3

522-420= 102cm^3

The solution is: the volume of the stone is : 102cm^3.

In mathematics, volume is the space taken by an object. Volume is a measure of three-dimensional space. It is often quantified numerically using SI derived units or by various imperial or US customary units. The definition of length is interrelated with volume.

Here, we have,

Given that,

A right rectangular container is 6 cm wide and 10 cm long and contains water to a depth of 7cm. A stone is placed in the water and the water rises 1.7 cm.

We know that,

volume is :

v=l×w×h

so, we get,

10x6x7=420 cm^3

the volume of water+stone=

10×6×(7+1.7)

522cm^3

522-420= 102cm^3.

Hence, The solution is: the volume of the stone is : 102cm^3.

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Answer:

2%

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

Answer:

7

Step-by-step explanation:

Answer:

7

Step-by-step explanation:

3×5-1-(2^2+6÷2)

3×5-1-(4+6÷2)

3×5-1-(4+3)

3×5-1-7

15-1-7

14-7

7

Answer:

H

Step-by-step explanation:

Given

4(15 - 7) ← apply the distributive law

= 15(4) - 7(4) → H

Answer:

Percentage: 75%

Fraction: 3/4

Step-by-step explanation:

Answer:

5.29150262213

Step-by-step explanation:

I hope this answer has helped you

Answer:

$273

Step-by-step explanation:

1. Find the first half of the list (There are 8 numbers in the list, so the first four)

2. List them from least to greatest ($196, $248, $298, $379)

3. find the middle of the numbers ($248, $298)

4. Since there are 2, we find the mean of the 2 numbers ($273)

5. So the answer is $273

Answer:

Graph A.

Step-by-step explanation:

We don't even have to analyze the inequalities. It tells us that y is supposed to be bigger than something and that y is supposed to be bigger than something else. That means that for both lines, the shaded region must be upwards. The only graph that conforms to that is graph A.

Answer:

-(6p^2+12p-7)

Step-by-step explanation:

p+7-6p^2-13p

-12p-6p^2+7

-(6p^2+12p-7)

Answer:

30

Step-by-step explanation:

Subtract the 1023 reading from the 1053 one:  

1053

-1023

---------

     30

Her electric consumption was 30.

Given:

The inequalities are:

a) [tex]w<-8, w=-4.3, -5.3, -8.3, -9[/tex]

b) [tex]t>-25, t=-24, -25, -25.1, -27[/tex]

To find:

The solution of inequalities by substituting the given values.

Solution:

a) We have,

[tex]w<-8, w=-4.3, -5.3, -8.3, -9[/tex]

After substituting the given values one by one, we get

[tex]-4.3<-8[/tex] False statement.

[tex]-5.3<-8[/tex] False statement.

[tex]-8.3<-8[/tex] True statement.

[tex]-9<-8[/tex] True statement.

Therefore the solutions of [tex]w<-8[/tex] are [tex]w=-8.3, -9[/tex].

b)

We have,

[tex]t>-25, t=-24, -25, -25.1, -27[/tex]

After substituting the given values one by one, we get

[tex]-24>-25[/tex] True statement.

[tex]-25>-25[/tex] False statement.

[tex]-25.1>-25[/tex] False statement.

[tex]-27>-25[/tex] False statement.

Therefore, the solution of [tex]t>-25[/tex] is [tex]t=-24[/tex].

Answer:

KM = 30

Sorry if this is not what you where looking for you did not describe exactly what you wanted

Answer:

B

Step-by-step explanation:

I don't have an explanation but i know its right!!!

Step-by-step explanation:

1. Review a given problem : [tex]1+4(3x-10)-12x[/tex]

2.distributive property:  [tex]4\left(3x-10\right) = 12x-40[/tex]

[tex]=1+12x-40-12x[/tex]

3. Simplify:  [tex]1+12x-40-12x[/tex]

[tex]-39 +12x-12x[/tex]

[tex]=-39[/tex]

Answer:

6.23 E9

Step-by-step explanation:

1 Billion = 1 E9

6.23 billion = 6.23 E9

Leave a thanks and mark brainliest if this helped.

Leave a thanks and mark brainliest if this helped.

Answer:

35.42%

Step-by-step explanation:

Answer:

C. 35.42%

Step-by-step explanation:

65 - 48 = 17

Since he grew 17 inches, you must figure out what percentage 17 is of 48.

17/48 = 1/100 (represents decimal)

Cross multiply: 17 ⋅ 100 = 1700 and 48 ⋅ 1 = 48

Divide: 1700/ 48

= 35.41666666666667

Round to the nearest hundredth:

= 35.42

Answer:

The axis of symmetry is x=1

Answer:

x = 1

Step-by-step explanation:

Answer:

Hi! Okay so i tried to find all the x and y intercepts that matched with (-4,7) and the closest one is C I'm not 100% sure its correct but its the only one that makes the most sense, its coordonated are (-8,4) i'm so sorry if u get it wrong

Step-by-step explanation:

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☆Don't worry i wont ask for brainliest this time☆

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Answer:

n^2 + 12 = 61

-12             -12

  n^2 = 49

Step-by-step explanation:

7 is your answer

7 x 7 = 49 + 12 = 61

Answer:

25d > 70

Step-by-step explanation:

Abby wants to ride her bicycle more than 70 miles this week.

More than = >

On Monday, Abby rode her bicycle for 25 miles. Abby plants to ride the same number of miles in the next six days.

Let the number of days of week she would ride her bike = d

On Monday = 25 miles

And the rest of the week = The same = 25 miles

The inequality is written as:

25d > 70

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Step-by-step explanation: