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Serhud [2]
3 years ago
9

The expressions a(8x + 7) and 4x + 3.5 are equivalent. What is the value of a?

Mathematics
1 answer:
Mashutka [201]3 years ago
7 0

Answer:

Step-by-step explanation:

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×WILL MARK AS BRAINLIEST×<br>Solve the equation for b, d and x
Lera25 [3.4K]
Solve for d:
(3 (a + x))/b = 2 d - 3 c
(3 (a + x))/b = 2 d - 3 c is equivalent to 2 d - 3 c = (3 (a + x))/b:
2 d - 3 c = (3 (a + x))/b
Add 3 c to both sides:
2 d = 3 c + (3 (a + x))/b
Divide both sides by 2:
Answer: d = (3 c)/2 + (3 (a + x))/(2 b)


-----------------------------

Solve for x:
(3 (a + x))/b = 2 d - 3 c
Multiply both sides by b/3:
a + x = (2 b d)/3 - b c
Subtract a from both sides:
Answer:  x = (2 b d)/3 + (-a - b c)

____________________________


Solve for b:
(3 (a + x))/b = 2 d - 3 c
Take the reciprocal of both sides:
b/(3 (a + x)) = 1/(2 d - 3 c)
Multiply both sides by 3 (a + x):
Answer: b = (3 (a + x))/(2 d - 3 c)
5 0
3 years ago
The area of 5 centimeters long and 4 centimeters wide
slega [8]
Area= length * width

Area= 5*4

Area= 20

I hope this helps!
~cupcake
3 0
3 years ago
Read 2 more answers
Evaluate the expression 3c – d for the given variable. d = -c + 7
s2008m [1.1K]
3c-d
3c-(-c+7)
3c+c-7
4c-7
Final answer: 4c-7
5 0
3 years ago
I need help someone please
IgorLugansk [536]

Answer: The answers are in the steps.

Step-by-step explanation:

A) 4 \frac{1}{2} =  9/2 * 13 =  117/2

B ) 13 ( 58  + 1/2)  

= 754  + 6.5

= 760.5

7 0
3 years ago
A pet shop manager wants the same number of birds in each cage he wants to use as few cages as possible but he can only have one
anastassius [24]

Since there are more parakeets than canaries, it is not possible to have only 1 of each bird in each cage <u>and</u> have the same number of birds in each cage.

He could use 42 cages, putting a canary in with the parakeet in 18 of them. Then he would have 18 cages with 2 birds each, and 24 cages with 1 bird each.

The only way to have the same number of birds (1) in all cages is to have 60 cages, 42 of which have 1 parakeet, and 18 of which have 1 canary.

_____

If more than 1 of each kind of bird can be put in the cage, the collection of birds could be put into 6 cages, each of which would be home to 7 parakeets and 3 canaries.

4 0
3 years ago
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