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Schach [20]
3 years ago
6

5(y +2/5) = -13

Mathematics
1 answer:
vovikov84 [41]3 years ago
4 0

tbm queria saber essa pergunta

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I'm in algebra please help and explain with work
lidiya [134]
2x+4y=0
3x+y=10
So what we want to do is get y onto one side by itself using whatever equation you like.
So I'm taking 2x+4y=0 and subtracting 4y from both sides
So we end up with
2x=4y
Divide both sides by four
2/4x is 1/2 x
So we get 1/2x=y
Take this and plug it into the other equation
3x+y=10
3x+1/2x=10
Add your like terms
3 1/2x=10
Putting 3 1/2 as a mixed number we get 7/2
So..
7/2x=10
Multiply by the opposite of 7/2 on both sides
Which is 2/7 this will cancel out the left side.
So we end up with
X= 10•2/7
X=20/7
Which is 2 and 6/7 as a mixed number.

5 0
3 years ago
write an equation of the line with the same slope as the line given by 5x+2y=8 and as the same y-intercept as 3x-7y=10
Paladinen [302]
The slope of the first equation would be -5/2 because
2y=-5x+8
y=-5x/2+4
The y intercept of the 2nd equation is when x=0, so -7y=10
y=-10/7
The equation of the line would be y=-5x/2-10/7
Or in standard form....
5x/2+y=-10/7
5x+27=-20/7
5 0
3 years ago
Read 2 more answers
Which of the following prefixes is the best for measuring small quantities like the thickness of a dime A.milli B.kilo C.deci D.
never [62]
Milli is the best to measure the thickness of a dime. A is your answer.
6 0
3 years ago
There are 15 students on a yearbook committee. 40% of the students are females. How many students on the committee are males?
Andrei [34K]

Answer:

9 students on the committee are males

Step-by-step explanation:

As per the statement:

There are 15 students on a yearbook committee.

⇒Total students on a yearbook committee = 15

⇒\text{Male students} +\text{Female students} = 15     ....[1]

It is given that:

40% of the students are females

⇒\text{Female students} = \frac{40}{100} \cdot 15 = 6

Substitute in [1] we have;

\text{Male students} + 6 = 15

Subtract 6 from both sides we have;

\text{Male students}= 9

Therefore, 9 students on the committee are males

8 0
3 years ago
Read 2 more answers
How to find the distance of something?
posledela
You need the starting point and the end point and count how long it took to get to one point to the either
8 0
2 years ago
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