Solve the system using elimination 4x+5y =2 -2x+2y=8
PLEASE HURRY I NEED THIS DONE IN 20 MINUTES

Answer: x= 30

Step-by-step explanation:

These are corresponding angles which means they are equal. (2x+25) = (3x-5). Subtract 2x from both sides. 25 = x-5. Add 5 to both sides. 30 = x

Answer:

-13 = n - 4

Step-by-step explanation:

-13 is four less than a number n

so four less than n  can be written as n - 4

-13 = n - 4

n= -9

Answer:

7

Step-by-step explanation:

I) Construct an expression to find the answer:

2(2) - 3(-1)

II) Simplify/Solve:

2(2) - 3(-1)

= 4 - (-3)

= 7

Answer:

7

Step-by-step explanation:

Substitute 2 for x and -2 for y

2(2) - 3(-1)

4 - -3 = 7

Answer:

Step-by-step explanation:

1/8*4/5=1/10

Answer:

0.1

Step-by-step explanation:

1/8 * 4/5= 0.1

i think that this is correct

Answer:

22.25

Step-by-step explanation:

1302-1124/2016-2008

Answer:

the total weights in tons is 18

Step-by-step explanation:

The computation of the total weights in tons is shown below:

The weight of 8 cars would be

= 4,500 pounds × 8 cars

= 36,000 pounds

Now as we know that 1 ton = 2,000 pounds

So for 8 trucks it would be

= 36,000 pounds ÷ 2,000 pounds

= 18 tons

Hence, the total weights in tons is 18

Answer:

7

Step-by-step explanation:

We can simplify this because 6x - 3x is equal to 3x, so we get that the expression is 3x - y + 5. Next, we can plug in our values. 3 * 4 - 10 + 5 is equal to 12 - 10 + 5, which is 2 + 5, which is 7.

The value of the expression 6x - 3x + 5 - y at x = 4 and y = 10 is 7.

Substitution in mathematics is when we replace some specific numerical values to variables according to our wants or given in the problem.

Given, An expression 6x - 3x + 5 - y.

Now, The value of the expression at x = 4 and y = 10 can be obtained by replacing the numerical values of x and y.

Therefore, 6x - 3x + 5 - y at x = 4 and y = 10 is,

6(4) - 3(4) + 5 - 10.

= 24 - 12 + 5 - 10.

= 12 - 5.

= 7.

learn more about substitution here :

https://brainly.com/question/13660615

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Answer:

180 i belive

Step-by-step explanation:

Answer:

A.

Step-by-step explanation:

got it right on test

The provided expression is equivalent to the expression mentioned in option (A), and option (A) is correct.

In mathematics, integer exponents are exponents that should be integers. It may be a positive or negative number. In this situation, the positive integer exponents determine the number of times the base number should be multiplied by itself.

We have:

[tex]= 5^{9.969}[/tex]

We can write it as:

[tex]= 5^{\dfrac{9969}{1000}}[/tex]

or

[tex]= 5^{\dfrac{9000+900+60+9}{1000}}[/tex]

[tex]= 5^{{9}} \ 5^{\dfrac{9}{10}} \ 5^{\dfrac{6}{100}} \ 5^{\dfrac{9}{1000}}[/tex]

Thus, the provided expression is equivalent to the expression mentioned in option (A), and option (A) is correct.

Learn more about the integer exponent here:

brainly.com/question/4533599

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Step-by-step explanation:

80+20m= 70+25m

10=5m

m= 2

After two months

they will cost $120

Answer:

68°

Step-by-step explanation:

since the angle given is a complementary angle, we know that the sum of it must equal 180°

let the unknown angle below j be x so,

[tex]25+43+x=180\\x=180-25-43\\x=112[/tex]

now since the angle on the left of j is equal to x we can say

[tex]x+j=180\\j=180-x\\j=180-112\\j=68[/tex]

Answer:

75

Step-by-step explanation:

Answer:

75

Step-by-step explanation:

Answer: rhombus and parralelogram

Step-by-step explanation:

Answer:

rhombus and parralelogram

Step-by-step explanation:

A)

45 degrees, and it is congruent.

90/2 = 45

Since it is an Alternate Interior, it is congruent.

B)

45 degrees. It is also congruent since it is an Alternate Exterior.

C)

135 degrees. It is a linear angle/linear pair.

180-45=135

I actually worked really hard for this so please consider that. I couldn't find help anywhere.

Answer: 3m/s

Step-by-step explanation:

the formula for speed is distance divided by time, the question tells us the time is referring to the first 30 seconds, so just divide the distance by time (the answers you’d get are 3, 3, 1) so 3 m/s is closest to the average speed

The average speed of the bicyclist during 30 seconds of motion is mathematically given as

v'=3m/s

Question Parameter(s):

During 30 seconds of motion

Generally, the equation for the  speed is mathematically given as

v=d/t

Therefore

v'=(30/10+60/20+30/30)3

v'=3m/s

In conclusion, Average speed

v'=3m/s

Read more about Motion

https://brainly.com/question/605631

════════ ∘◦❁◦∘ ════════

════════════════════

x1 = (-4)

y1 = (-3)

x2 = (-5)

y2 = (-6)

════════════════════

slope = gradient (m)

════════════════════

[tex]m = \frac{y2 - y1}{x2 - x1} = \frac{( - 6) - ( - 4)}{( - 5) - ( - 3)} = \frac{( - 2)}{( - 2)} = 1 [/tex]

════════════════════

Answer:

4n+2=15

Step-by-step explanation:

If you count 4 n's and then add 2, the bar is the same length as the 15 bar. ~logic~

Answer:

it is 0.8

Step-by-step explanation: to get 56/70 converted to decimal you simply have to divide 56 by 70.

Answer:

B, C, E

Step-by-step explanation:

Elena’s aunt pays her $1 for each call she makes to let people know about her aunt’s new business. The table shows how much money Diego receives for washing windows for his neighbors.

Select all the statements about the situation that are true.

A. Elena makes more money for making 10 calls than Diego makes for washing 10 windows.

Elena:

$1 = 1 call

$10 = 10 calls

Diego:

27 windows = $30

10 windows = $x

Cross product

27*x = 30*10

27x = 300

x = 300/27

x = $11.11

Statement A not true

B. Diego makes more money for washing each window than Elena makes for making each call.

Diego:

10 windows = $11.11

Each window = $11.11/10

= $1.11

Statement B is true

C. Elena makes the same amount of money for 20 calls as Diego makes for 18 windows

Elena:

20 calls = $20

Diego:

18 windows = 18 × $1.11

= $19.98

Approximately $20 to the nearest whole dollar

Statement C is true

D. Diego needs to wash 35 windows to make as much money as Elena makes for 40 calls.

Diego

35 × $1.11 = $38.85

Approximately $39

Elena:

40 calls = $40

Statement D is not true

E. The equation y = x, where y is the number of dollars and x is the number of calls, represents Elena’s situation.

Statement E is true

Answer: its choice c or the third one also known as 1/8^8 or 8^-8

Hope this helps, and if it did please mark me as brainliest! >//-//< <3

Answer:

the 3rd one [tex]\frac{1}{8*8*8*8*8*8*8*8 }[/tex]`

Step-by-step explanation:

hope  this helps have a good rest of your night :) ❤

Answer:

(-4,-7)

Step-by-step explanation:

Answer:

81.57 cm

Step-by-step explanation:

Given that :

Scale :

3cm : 100km

This means ; 3cm on the map represents an actual length of 100km

Actual length of shoreline = 2719 km

The length of the shoreline on the map will be :

(2719 km / 100 km) * 3cm

27.19 * 3cm

= 81.57 cm

Answer:

81.57 cm

Step-by-step explanation: