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brilliants [131]
4 years ago
15

Find 4(6a−5)−(9a+1).

Mathematics
1 answer:
stira [4]4 years ago
4 0

Answer:

15a-21

Step-by-step explanation:

could be wrong though

You might be interested in
A scientist uses 3/4 of an ounce of sulfuric acid each day. How many days does it take him to empty a jar, if each jar contains
Basile [38]

Answer:

32 days

Step-by-step explanation:

Assume that the jar is full initially, containing 24 oz.  After how many withdrawals of 3/4 oz will the jar be empty?

24 - (3/4)n = 0, or

24 = (3/4)n, or 96 = 3n.  Dividing both sides by 3, we get n = 32.

The jar will be empty after 32 days.

6 0
3 years ago
Solve the equation for an ellipse for y. Assume that y > 0. y^2/a^2 + x^2/b^2 = 1
In-s [12.5K]
Multiply each term by a^2b^2:-

b^2y^2 + a^2x^2 = a^2b^2
subtract a^2x^2 from both sides
b^2y^2  = a^2b^2  - a^2x^2
Now divide both sides  by b^2

y^2 =  a^2 -  a^2x^2 / b^2  = a^2 (1 - x^2/b^2)

take positive square root ( because y > 0)

y  = a sqrt(1 - x^2/b^2)
4 0
4 years ago
Read 2 more answers
The difference between 4x and 2x is 70. Find the 2x​
VashaNatasha [74]

Answer:

2x = 70

Step-by-step explanation:

4x - 2x = 70

2x = 70

x = 70/2

x = 35

4 0
2 years ago
( 3x + 2) + (4x - 3) + ( x + 7) = 86 what is x
svet-max [94.6K]

Answer:

x=10

Step-by-step explanation:

hope it helps

7 0
3 years ago
Mr. Voelz estimates that he will spend $10 on concessions at the basketball game. He actually spends $15. What is the percent er
irina [24]

Answer:

I am not sure but if you divide those 2 numbers such as dividing 10 by 15 you will get 0.666666666667 but if you round it you will have 67%

Step-by-step explanation:

Plz mark Brainliest

5 0
3 years ago
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