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nalin [4]
3 years ago
10

Write equivalent expression for 5(×+4)+16

Mathematics
1 answer:
Goryan [66]3 years ago
8 0
5x+20+16
the expression is 5x+36
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3x + ky = 8
djyliett [7]

Answer:

a) 3x + ky = 8

ky = 8 - 3x

x – 2ky = 5

x - 2(8 - 3x) = 5

x - 16 + 6x = 5

7x = 21

x = 3 (shown)

b) x-2ky = 5

sub x = 3, y = 1/2

3-2k(1/2) = 5

-2k = 2

k = -1

3 0
3 years ago
Attorney A charges a fixed fee on $250 for an initial meeting and $150 per hour for all hours worked after that. Write an equati
Anettt [7]

let h be the number of hours then

A → C = 150h + 250 ( where C is charge )

B → C = 175h + 150

for 26 hours

A → C = (150 × 26 ) + 250 = 3900 + 250 = $4150

B → C = (175 × 26 ) + 150 = 4550 + 150 = $4700

Attorney A is cheaper for 26 hours, thus better deal

Equate the 2 equations to find hours they charge the same

175h + 150 = 150h + 250 ( subtract 150h from both sides )

25h + 150 = 250 ( subtract 150 from both sides )

25h = 100 ( divide both sides by 25 )

h = 4 ← number of hours when charges for both are equal

Thus Attorney A becomes a better deal at 5 hours


3 0
3 years ago
How can you tell the zeros of this function by looking at the graph? What are the zeros of the function?
Harrizon [31]
Zero points are these points, where your graph cross x-axis (vertical). And zeros are x values for these points
7 0
3 years ago
Read 2 more answers
The foot of a ladder is placed 7meters from a wall. If the top of the ladder rests ,How long is the ladder
Virty [35]

Answer: 11.4 m

Step-by-step explanation:

The scenario depicted is that of a right angled triangle with the 7 meters being the base and the 9 meters being the height.

The length of the ladder will therefore be the Hypothenuse.

Using the Pythagorean Rule:

a² + b² = c²

with c being the hypothenuse

7² + 9² = c²

49 + 81 = c²

c²= 130

c = √130

c = 11.4 m

6 0
2 years ago
Someone please help me, i will give brainliest <br> Enter the decimal equivalent of 11/8
Nonamiya [84]

Answer:

1.37

Step-by-step explanation:

I just used my calculator lol

8 0
3 years ago
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