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Agata [3.3K]
3 years ago
7

1. Solve the system by substitution . 2x+y=-11 . 3x-4y=11 . . A. (3,5) . B. (-5,-3) . C. (-3,-5) . D. (5,3).

Mathematics
2 answers:
VMariaS [17]3 years ago
5 0
<span>In the first equation, moving 2x over gives "y = -2x-11". Placing this into the second equation gives "3x - 4(-2x-11) = 11", or "3x+8x+44 = 11", which can be reduced to "11x= -33" or "x = -3". Replacing the "x" with -3 in the first equation gives "-6 + y = -11" or "y = -5". This gives a solution of (-3, -5), or answer C.</span>
tamaranim1 [39]3 years ago
3 0

1)(D) (3,1)

2)(C)(-3,-5)

3)(B)(0,-2)

4)(B)

100%right On Connexus Lesson 3 Unit 1

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A baker makes loaves weighing 600 G how many lobes can she make from 12.9 kg of dough​
GalinKa [24]

Answer:

22

Step-by-step explanation:

Weight of lobes is 600 g and we need to find the no of lobes can she make from 12.9 kg of dough​.

We know that,

1 kg = 1000 g

⇒ 12.9 kg = 12900 g

Let she can make n lobes. So,

n=\dfrac{12900}{600}\\\\n=21.5\approx22

So, she can make 22 lobes.

3 0
2 years ago
I just took a screenshot of it, but I have no idea how to do this
Marianna [84]

Answer:

84°

Step-by-step explanation:

Solve for n. Note that the angle measurements of a circle will equal 360°. Set all the angles = 360°.

7n + 12 + 13n - 16 + 6n = 360

Combine like terms:

(7n + 13n + 6n) + (12 - 16) = 360

26n - 4 = 360

Isolate the variable, n. Note the equal sign, what you do to one side, you do to the other. First, add 4 to both sides:

26n -4 (+4) = 360 (+4)

26n = 360 + 4

26n = 364

Next, divide 26 from both sides:

(26n)/26 = (364)/26

n = 364/26

n = 14

Next, plug in 14 for n in the angle measurement, 6n:

6n = 6(14) = 84°

Note that these are central angles, which means that the arc's will be the same measurement as the angle's measurement.

arcBC = 84°

84° is your answer.

~

3 0
3 years ago
The cost for a certain music plan is 9.99 per year plus $.025 per song you download if you paid $113.74 one year find the number
garri49 [273]
Y=amount of money paid.  (in $)
x=number of songs download.

We have this function:
y=0.25x+9.99

Then:
if y=113.74

113.74=0.25x+9.99
0.25x=113.74-9.99
0.25x=103.75
x=103.75 / 0.25
x=415

Answer: the number of songs downloaded would be 415.
6 0
3 years ago
Read 2 more answers
SOMEONE PLS HELP THIS IS DUE SOON
cestrela7 [59]

Answer:

8.5

Step-by-step explanation:

since it is the same as ABC, 2x-1=16

add the 1 to both sides which gives you 2x=17

then divide each side by 2 which gives you x=8.5

now go submit!

4 0
2 years ago
What is the answer to the problem above in the picture
lana66690 [7]

Answer: Third option.

Step-by-step explanation:

Some transformations for a function f(x) are shown below:

If f(x)+k, the function is translated "k" units up

If f(x)-k, the function is translated "k" units down.

If f(x+k), the function is translated "k" units left.

If f(x-k), the function is translated "k" units right.

In this case you have the following function:

f(x)=3x+2

And you know that the function g(x) is obtained by translating the function f(x) 5 units down and 3 units left; therefore, you can conclude that g(x) is:

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

Finally, simplifying, you get that this is:

g(x)=3x+9-3\\\\g(x)=3x+6

5 0
3 years ago
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