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a_sh-v [17]
4 years ago
5

One number added to three times another number is 24. Five times the first number added to three times the other number is 36. F

ind the numbers.
Mathematics
1 answer:
Lera25 [3.4K]4 years ago
5 0
Okay, so the equations would be:
x + 3y = 24
3y + 5x = 36

Imma use Substitution to solve this:
x = -3y + 24

3y + 5(-3y + 24) = 36
3y - 15y + 120 = 36
-12y + 120 = 36
-12y = -84
y = 7

x = -3(7) + 24
x = -21 + 24
x = 3

So the first number (x) would be 3 and the second number (y) would be 7.
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the following are the changes of a value of a certain stock over the last 5 days: -$7, +$3, +$6, -$2, -$5. find the mean and int
jarptica [38.1K]
-7+3+6-2-5. = -5. /5. = -1. That means that they lost $1 a day
4 0
3 years ago
Read 2 more answers
A trapezoid’s top measures 2.2 m, and its height measures 4.0 m. Calculate the measurement of the base if the area of the trapez
Ghella [55]

Answer:

The measurement of the other parallel side which is the base of the parallelogram is 4.3 m

Step-by-step explanation:

Mathematically, the area of a trapezoid can be calculated using the formula below;

A = 1/2 (a + b) c

where a and b are the parallel sides and c is the height

We have one parallel sides and the height including the value of the area

Let’s say A = 13

a = 2.2m

h = 4.0 m

Plugging these values, we have;

13 = 1/2(a + 2.2) 4

26 = 4(a + 2.2)

26 = 4a + 8.8

26-8.8 = 4a

4a = 17.2

a = 17.2/4

a = 4.3 m

7 0
3 years ago
Which of the following is not the equation of the graphed line?
ehidna [41]

Answer:

well, we do not have the options here, but we can find the equation of the graph, so the equations that are different from that are the answer to this question:

in the graph, we can see that it goes through the points:

(0,1) and (2,0)

Remember that the slope of a line that goes through the points (x1, y1) and (x2, y2) is:

s = (y2 - y1)/(x2- x1)

then the slope for our line is:

s = (0 - 1)/(2 -0) = -1/2

Then our line is:

y = -(1/2)*x + b.

b is the y-intercept, and we know that when x = 0 y = 1, then:

1 = -(1/2)*0 + b

1 = b

then the equation is:

y = -(1/2)*x + 1

5 0
3 years ago
Please help me! I will give brainliest
Alika [10]
The answer is B because it equals 8 1/36
7 0
3 years ago
Hey bros i need ur help dont worry this is not a test just a practice I found online.
Tanya [424]

Answer:

k=4

Step-by-step explanation:

euqation of the graph

(1) g(x)= x+3

We have

(2) g(x)=f(x)+k

(3) g(x)=x-1+k

(1) =(3)

x+3 =x -1 + k

-x      -x

3= -1+k

k= 4

7 0
4 years ago
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