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Luden [163]
3 years ago
9

Solve by factoring x^2-10=9x

Mathematics
1 answer:
BabaBlast [244]3 years ago
4 0

Answer:

x=10

Step-by-step explanation:

x^2 - 10 - (9x) = 0

x^2 - 9x - 10 = 0

(x - 10) + (x + 1) = 0

x= 10

x = -1

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An experienced carpenter could build a house in 4 days. How much would he have if he worked for 2 days?
Novosadov [1.4K]
He would have half a house
8 0
3 years ago
Read 2 more answers
Make m the subject in a(c+m)=2(c+3m)
Murrr4er [49]

Answer:

m = \frac{2c-ac}{a-6}

Step-by-step explanation:

distribute parenthesis on both sides

ac + am = 2c + 6m ( collect terms in m on left side )

subtract 6m from both sides

ac + am - 6m = 2c ( subtract ac from both sides )

am - 6m = 2c - ac ( factor left side )

m(a - 6) = 2c - ac ( divide both sides by (a - 6))

m = \frac{2c-ac}{a-6}


3 0
3 years ago
a family has two cars. the first car has a fuel efficiency of 20 miles per gallon of gas and the second has a fuel efficiency of
nikklg [1K]

Car A consumes 25 gallon and car B consumes 15 gallon.

Step-by-step explanation:

Given,

The fuel efficiency of car A = 20 miles per gallon.

The fuel efficiency of car B = 15 miles per gallon.

In a week, two cars went 725 miles and consumed 40 gallons.

To find the consumption of each car in that week.

Let,

Car A consumed x gallon

Car B consumed y gallon.

According to the problem,

x+y = 40 ----- (1)

20x+15y = 725

or, 4x+3y = 145 -------- (2)

From (1) we get, x = 40-y

Putting the value of x in (2) we get,

4(40-y)+3y = 145

or, 160-4y+3y = 145

or, -y = 145-160

or, y = 15

From (1) we get, x = 40-15 = 25

Hence,

Car A consumes 25 gallon and car B consumes 15 gallon.

7 0
2 years ago
Hi can anyone help me do this question,I will mark brainlest.​
saul85 [17]

Answer:

11. 40.5

12. 84

Step-by-step explanation:

4 0
2 years ago
1. Melissa went to lunch with two friends. She purchased 3 corn dogs, 2 fruit cups, and
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Answer:

14 is the answer.

Step-by-step explanation:

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3 years ago
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