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ivanzaharov [21]
3 years ago
12

Which ordered pair is a solution of the equation?

Mathematics
2 answers:
Anni [7]3 years ago
7 0

Answer:

c) both (1,2) and (2,4)

Step-by-step explanation:

You solve this by plugging the numbers in and seeing if they are equal to each other.

frosja888 [35]3 years ago
5 0

First simplify the equation.

3x+3y= -x+5y

4x=2y

2x=y

y=2x

Means that the y value is 2 times the x value.

answer: C but there are more solutions than just (1,2) and (2,4)

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Solve for n<br><br>m = -2n-3/kn ​
Gekata [30.6K]

Answer:

n=\frac{-km}{2k+3}

Step-by-step explanation:

n=-km/2k+3

Hope this helps!

7 0
2 years ago
How to turn negative into mixed numbers into improper fractions
masya89 [10]
U turn negative numbers from mixed numbers to improper fractions the same way u do with positive...u just temporarily disregard the negative sign.

Example : 
- 2 2/3.....temporarily disregard the negative sign......take ur whole number (2) and multiply it by ur denominator (3) giving u 6, then add that to ur numerator (2) giving u 8....then put that number over the original denominator (3) giving u 8/3...and then put back ur negative sign...-8/3
4 0
3 years ago
Loris makes 20 bracelets in 50 minutes. Doris makes 44 bracelets in 2 hours. who makes more bracelets per hour. how many more?
Sedaia [141]
To do this, you'll have to get loris and doris to the same amount of time, we can already tell loris makes 40 bracelets in 100 minutes but we are still missing 20 minutes, so we got to do some math(Ofc we do its mathematics) if you divide 50 by 20 you'll get 2.5 which is how many minutes it takes to make a bracelet. So now we can go back to that missing 20 minutes, if you divide 20 by 2.5, you'll get 8. So in 2 hours loris makes 48 bracelets(20 + 20(50 hours each)=40 + 8(the missing 20 minutes) = 48) But here is the tricky part it says per an hour, so we need to reduce both by half, so loris makes 24 bracelets an hour and doris makes 22 bracelets an hour so loris makes 2 more bracelets and hour than doris... hope i've helped!
3 0
3 years ago
In a circle of radius 10 cm, a sector has an area of 40 (pi) sq. cm. What is the degree measure of the arc of the sector?
Rashid [163]

Answer:

144°

Step-by-step explanation:

First, find the area of the circle, with the formula A = \pir²

Plug in 10 as the radius, and solve

A = \pir²

A = \pi(10²)

A = 100\pi

Using this, create a proportion that relates the area of the sector to the degree measure of the arc.

Let x represent the degree measure of the arc of the sector:

\frac{40\pi }{100\pi } = \frac{x}{360}

Cross multiply and solve for x:

100\pix = 14400\pi

x = 144

So, the degree measure of the sector arc is 144°

6 0
3 years ago
Read 2 more answers
A pencil and an eraser cost 1.10 together. if the pencil costs one dollar more than the eraser how much does the eraser cost
Kazeer [188]

1 pencil + 1 eraser = $1.10


Pencil cost $1 more than the eraser.

⇒ If we take away $1 from the total, both the pencil and the eraser will cost the same.

⇒ $1.10 - $1.00 = $0.10


Divide by 2 to find the cost of the eraser.

⇒$0.10 ÷ 2 = $0.05


Find the cost of the pencil, which is $1 more than the eraser.

⇒ $0.05 + $1 = $1.05


Answer: The eraser costs $0.05



8 0
3 years ago
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