3 years ago

Determine the solution to a−5=3 that makes the equation true.

Mathematics

1 answer:

anastassius [24]3 years ago

5 0

Answer:

a= 8

8-5= 3

Step-by-step explanation:

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-4r-8(r-6)=7(5r-1)+8

KATRIN_1 [288]

Answer:

r = 1

Step-by-step explanation:

In this question, we have to solve for the vallue of "r". We will use the distributive property shown below to ease our process.

Distributive Property:

a(b+c) = ab + ac

Now, lets solve this:

$-4r-8(r-6)=7(5r-1)+8\\-4r-8r+48=35r-7+8\\-12r+48=35r+1\\48-1=35r+12r\\47=47r\\r=\frac{47}{47}\\r=1$

As we have seen the value of r is "1"

6 0

3 years ago

3 Solve for x. 9(x + 1) = 25 + x Ο x=2 x=3 0 x=4 0 0 0 0 Ο 0 x=5

muminat

Answer:

x= 2

Step-by-step explanation:

so expand the left side of the equation

9x+9= 25+x

and then group like terms( subtract 9 from both sides and also do same with x.

9x-x= 25-9

8x= 16

divide by 8 on both sides.

x=2

7 0

1 year ago

The problem is in the picture :)

frozen [14]

Answer:

Last option: 4

Step-by-step explanation:

The quadratic equation simplified: $x^2-4x=-\frac{7}{2}$ has the form:

$ax^2+bx=c$

In this case, you can identify that "a", "b" and "c" are:

$a=1\\b=-4\\c=-\frac{7}{2}$

To solve this quadratic equation by completing the square, Carlos should add $(\frac{b}{2})^2$ to both sides of the equation. This is:

$(\frac{-4}{2})^2=(-2)^2=4$

Then:

$x^2-4x+4=-\frac{7}{2}+4$

Therefore you can observe that the number he should add to both sides of the equation is: 4

8 0

3 years ago

Sally eats lunch at a restaurant and her bill is $12. She would like to leave a 15% tip for the waiter.

Andreas93 [3]

Answer:

$ 13.80

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

There are 790 cal in 610 ounce bottles of apple juice how many calories are there in one 10 ounce bottle of apple juice

Akimi4 [234]

I would say 18 because 790-610= 180 and 180÷10= 18

7 0

3 years ago