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Alex Ar [27]
3 years ago
13

A: 2x + 8y = 5 B: x + 9y = 10 To solve this system of equations by elimination, what could you multiply equation B by if you wan

t to add the equations together and have a resulting equation with only the y-variable (the x-variable is eliminated)?
Mathematics
2 answers:
Leona [35]3 years ago
6 0

Answer:

-2

Step-by-step explanation:

shepuryov [24]3 years ago
3 0
Multiply equation B by 2, so then it is 2x +18y = 20, then you can eliminate x and leaving to solve for y
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PLEASE HELP I HAVE A TIME LIMIT I WILL GIVE BRAINLIEST AND 5 STARS show your work rex mixed x liters of fruit syrup with y liter
vekshin1

graph of lines 3 y equals 2x plus 11 and y equals minus x plus 7. Lines intersect at ordered pair 2, 5

graph of lines 3 y equals 2 x minus 4 and y equals minus x plus 7. Lines intersect at ordered pair 5, 2

graph of lines 3 y equals 2 x plus 6 and y equals minus x plus 7. Lines intersect at ordered pair 3, 4

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I don't know if it's right tho :C

5 0
3 years ago
Read 2 more answers
HELP! Quick! Test! Will mark brainliest!
Vilka [71]

Answer:

Number of wooden carving = a

Total amount Sam spend = 1,200 + 4a

Total revenue of Sam = 15a

Number of wooden carving make to earn profit $4,300 = 500 carvings

Step-by-step explanation:

Given:

Sales price of each wooden carving = $15

Fixed cost = $1,200

Variable cost = $4 for each

Find:

Number of wooden carving make to earn profit $4,300

Computation:

Part 1

Assume

Number of wooden carving = a

Part 2

Total amount Sam spend = 1,200 + 4a

Part 3

Total revenue of Sam = 15a

Part 4

Total profit of Sam = Total revenue of Sam - Total cost of Sam

4,300 = 15a - [1,200 + 4a]

4,300 = 15a - 1,200 - 4a

11a = 5,500

a = 5,500 / 11

Number of wooden carving make to earn profit $4,300 = 500 carvings

7 0
3 years ago
What is the anwser to 450mg=g
Nostrana [21]
Since 1000 mg is one g then the answer is .45 . So 450mg=.45g. Hope I helped.
4 0
3 years ago
What is the measure of arc CD?
CaHeK987 [17]

Option C:

The measure of arc CD is 40°.

Solution:

Given data:

m∠X = 11° and m(arc AB) = 18°

To find the measure of arc CD:

We know that,

<em>Angle formed by two intersecting secants outside the circle is equal to half of the difference between the intercepted arcs.</em>

$m \angle X =\frac{1}{2}({arc  \ CD}-{arc}  \ AB)

$ 11^\circ =\frac{1}{2}({arc}  \ CD-{18^\circ})

Multiply by 2 on both sides.

22° = arc CD - 18°

Add 18° from both sides.

40° = arc CD

Switch the sides.

arc CD = 40°

Hence the measure of arc CD is 40°.

Option B is the correct answer.

7 0
3 years ago
Rosa collected 140 coins from different countries. Thirty-six of her coins were from Canada. About what percent of the coins wer
defon
Let's set up a proportion.

 36         x
___      ___

140      100

Solve for x

36 x 100 = 3600
3600/140 = about 26%

The answer is C. 26%

Hope this helps! If it does, be sure to rate, thank, and if it really helped, give brainliest! It helps me rank up. Thanks! :)
6 0
3 years ago
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