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Viktor [21]
3 years ago
6

Thuy wrote the system of equations. 24 x + 36 y = 72. Negative 16 x + 8 y = 80. If the second equation is multiplied by 3, what

should the first equation be multiplied by to eliminate the x variable by addition?
Mathematics
2 answers:
Irina-Kira [14]3 years ago
7 0

Answer:

multiply the first equation by 2

Step-by-step explanation:

24x + 36y = 72

-16x + 8y = 80

48x + 72y = 144

-48x + 24y = 240

96y = 384

y = 4

24x + 36(4) = 72

24x + 144 = 72

24x = -72

x = -3

(-3, 4)

Vitek1552 [10]3 years ago
6 0

Answer:

-3, 4

Step-by-step explanation:

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Robert's father is 4 years older than 3 times Robert's age. His father is 40 years old. Write the equation used to determine Rob
FrozenT [24]

Answer:

robert is 12 years old

Step-by-step explanation:

robert's age=x

40=3x+4

that's the equation

40=3x+4

=36=3x

x=12

8 0
3 years ago
What is the function
Ede4ka [16]
The graph shows us that the slope of f(x) is -2. Now we gotta find the slope of g(x) to compare it to that of f(x). The equation of g(x) is in slope-intercept form (y = mx + b, where m is the slope and b is the y-intercept), so the slope is given to us for that one as well: it's -6. A line with a slope of -6 will be steeper than a line with a slope of -3, therefore the answer is B - the slope of f(x) is less than the slope of g(x).
Hope this helps.
3 0
3 years ago
Please help me with this
mash [69]

Answer:

The correct answer is first option

24

Step-by-step explanation:

From the figure we get, mAXM = 72° and  m<AMR = 38°

Also it is given that, all triangles are isosceles triangles and

m<FXA = 96°

<u>To find the measure of <FXM</u>

From the figure we get,

m<FXA =  m<AXM + m<FXM

m<FXM = m<FXA - m<AXM

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 = 24

Therefore the  correct answer is first option

24

4 0
3 years ago
Solve for x: −2(x + 3) = −2(x + 1) − 4. (1 point) a 2 b 3 c All real numbers d No solution
sashaice [31]

The correct answer would be

C. All Real Numbers

8 0
3 years ago
sea level =0 A submarine is 120ft below sea level it climbs 50 ft towards sea level where the submarine comparrf to sea level an
Katyanochek1 [597]

Answer:

<h2>70 ft</h2>

Step-by-step explanation:

120 below we can use a model to figure this out.

sea level is 0

the submarine <u>goes 120 down</u>, so its -120

it <u>goes up by 50</u>, so now its <em>70</em>

no other obstacles, 70 or A is your answer.

7 0
3 years ago
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