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Julli [10]
3 years ago
15

Substitute 8 for x and evaluate the expression below. 5(x + 1) - 20

Mathematics
2 answers:
fenix001 [56]3 years ago
8 0

Answer:

25

Step-by-step explanation:

Substituting x = 8 into the expression

5(8 + 1) - 20

= 5(9) - 20

= 45 - 20

= 25

My name is Ann [436]3 years ago
8 0

Answer:

25

Step-by-step explanation:

see Image below:)

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An investment is worth ​$3 comma 659 in 1992. By 1997 it has grown to $ 6 comma 659. Let y be the value of the investment in the
kakasveta [241]

Answer:

y = 600x + 3659

Step-by-step explanation:

General form of the linear equation:

y = mx + b

Given :

x = 0 represents 1992

x = 0  , y = 3659

So, x value for 1997 becomes:

x = 1997-1992 = 5

at x = 5, y = 6659

Plugging in x = 0, y = 3659 in y = mx+b

3659 = m(0) + b

b = 3659

Plugging in x = 5, y = 6659 and b = 3659

6659 = m(5) + 3659

Solving for m:

m(5) = 6659-3659

5m = 3000

m = 3000/5 = 600

Now plug in the values of unknowns m and b in general equation:

y = 600x + 3659

8 0
3 years ago
Which compound inequality can be used to solve the inequality 13x+2/> 7
san4es73 [151]
(3x + 2) < -7 or (3x + 2 >7

Explanation/Step by step:

We have| |3x +2| >7

We divide the absolute value inequality into two inequalities

First Inequality (Which is Positive Value)
(3x + 2) >7

Second inequality (Which is the Negative Value)
-(3x + 2) >7

Then you Multiply by- 1 both sides

~And Remember that when you multiply or divide both sides of an inequality by a negative number you must reverse the inequality Symbol.~

So which that be said it would look like this:
(3x +2) < -7

So therefore (3x + 2) < -7 or (3x + 2) >7

Hope this makes since to you!!
I hope this helps as well..
5 0
3 years ago
Can you show me a model of 278 divided by 2 please
Varvara68 [4.7K]

Hope this helps you!!!!!!!!!!

7 0
3 years ago
I’m really confused
Sergeeva-Olga [200]

So to solve for r, you need to isolate the variable onto 1 side. To do that, divide both sides by 2 pi, and your answer will be \frac{C}{2\pi } =r

6 0
3 years ago
What is 0.679 multiplied by 10
motikmotik

Answer:

6.79

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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