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3 years ago

Find an equivalent expression by simplifying 10x+5x-45+7y

Mathematics

2 answers:

maksim [4K]3 years ago

5 0

The answer would be 37

10x+5x-45+7y
15x-45+7
30+7
37

egoroff_w [7]3 years ago

3 0

Answer:

15x-45+7

Step-by-step explanation:

You would add the 10x and the 5x im pretty sure that would simplify it

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Please I need help!!!

Natalija [7]

Answer:

Step-by-step explanation:

-14 + x = 44

x = 44 + 14

x = 58

3 0

2 years ago

(Literal equations) The formula for the volume of a cylinder is V = πr^2h. Solve V = πr^2h for h, the height of the cylinder. A.

Kobotan [32]

Answer:

Step-by-step explanation:

Given

V = πr²h

Isolate h by dividing both sides by πr²

$\frac{V}{\pi r^2}$ = h → C

8 0

3 years ago

Please help in the question it should be if t=-6 when r =-2 its an error

Natasha2012 [34]

Answer:

r = - $\frac{12}{7}$

Step-by-step explanation:

Given that r varies inversely as t , then the equation relating them is

r = $\frac{k}{t}$ ← k is the constant of variation

To find k use the condition t = - 6 when r = - 2, then

- 2 = $\frac{k}{-6}$ ( multiply both sides by - 6 )

12 = k, thus

r = $\frac{12}{t}$ ← equation of variation

when t = - 7, then

r = $\frac{12}{-7}$ = - $\frac{12}{7}$

7 0

3 years ago

Evaluate the expression: 2x + 5 for x = 3

lubasha [3.4K]

Substitute the value of the variable into the equation and simplify.
11
11

5 0

2 years ago

Nancy found that x=1 is one solution to the quadratic equation (x 2)2=a. what is the value of a?

trasher [3.6K]

The value of the a in the quadratic equation is 4.

According to the statement

we have given that the x = 1 and the given equation is (2x)^2=a

And we have to find the value of A here.

So, For this purpose, we know that the

A quadratic equation is an equation of the second degree, meaning it contains at least one term that is squared.

And the given quadratic equation is

(2x)^2 = a

we know that the x = 1 and put the value of x in it then

(2(1))^2= a

(2)^2= a

a = 4.

Now for rechecking of the value, put a = 4 in the given equation then

(2x)^2 = a

Put a = 4

Then

(2x)^2 = 4

2x = 2

And the value of x become

x = 1.

Which equal to the given value of the x which is 1.

So, The value of the a in the quadratic equation is 4.

Learn more about Quadratic equation here

brainly.com/question/1214333

#SPJ4

7 0

2 years ago