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Aleksandr [31]
2 years ago
6

Find the value of the expression 30 - 3^2, 3 + 8(2),

Mathematics
1 answer:
emmasim [6.3K]2 years ago
5 0

Answer:

We've already evaluated expressions with two variables. Now it's time to ... Problem 1 in practice is: (3/2)y-3+(5/3)z given the values of y=4 and z=3. Substitute ... 6-3+5 = 3+5 = 8 ... When I try to divide 3 into 2, i get 0.666... and so on. Thanks!

Step-by-step explanation:

Hope this helps

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5) What is the slope of the line passing through the points (4, 5) and (0, -7)? Show all your work.
Marta_Voda [28]

Answer:

3

Step-by-step explanation:

(-7 - 5)/(0 - 4)

(-12)/(-4)

3

7 0
2 years ago
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8. The sum of two numbers is 23 less than twice the first number. Their difference is 19 less than
Katarina [22]

Answer:

44, 21

Step-by-step explanation:

x+y = 2x-23

x-y = 2y - 19

Rewrite

-x + y = -23

x - 3y = -19

Use elimination.

4 0
3 years ago
1) 8n - 40 = 6(8 + 5n)
Leviafan [203]

\text{Hello there!}\\\\\text{Solve for n:}\\\\8n - 40 = 6(8 + 5n)\\\\\text{First, distribute the 6 to the variables inside the parenthesis}\\\\8n-40=48+30n\\\\\text{Subtract both sides by -30n}\\\\-22n-40=48\\\\\text{Add 48 to both sides}\\\\-22n=88\\\\\text{Divide both sides by -22}\\\\n=-4\\\\\boxed{n=-4}

8 0
3 years ago
Read 2 more answers
Find the measure of
Sonbull [250]

Answer: 77°

Step-by-step explanation:

First we are going to find x and then insert it in 18x +5 to be able to get our <WZX

But to find x, we will have to apply the the exterior angle theorem

The exterior angle theorem state that : the exterior angle is equal to the sum of the two opposite interior anges

Using this theorem, then from the diagram above ;

18x + 5 = 48 + 8x - 3

we collect like term

18x - 8x = 48-3-5

10x = 40

Divide bothside by 10

10x/10 = 40/10

x = 4

but <WZX = 18x + 5

Then we substitute x=4

<WZX = 18(4) + 5

<WZX = 72 +5

<WZX =77

Therefore the measure of <WZX is 77°

8 0
3 years ago
What is the value of x?
Hitman42 [59]
The correct answer is √313. ( square root of 313 or 17.7)
Hope this helps.
7 0
3 years ago
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