3 years ago

Plz help me do this

Mathematics

1 answer:

MrRissso [65]3 years ago

3 0

Answer:

(i) 16 (ii) 29 (iii) 76 (iv) 23

Step-by-step explanation:

i just plugged everything into the equations.

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If $-2 < x \le 3,$ then find all possible values of $5x + 1.$ Give your answer in interval notation.

kotegsom [21]

Answer: $(-9, 16]$

This is the interval from -9 to 16. Exclude -9 but include 16.

=====================================================

Work Shown:

The idea is to multiply all sides by 5, then add 1 to all sides

$-2 < x \le 3$

$5(-2) < 5x \le 5(3)$

$-10 < 5x \le 15$

$-10+1 < 5x+1 \le 15+1$

$-9 < 5x+1 \le 16$

This converts to the interval notation $(-9, 16]$

note: a curved parenthesis means "do not include this value in the solution set"; while a square bracket has us include the value. So we exclude -9 and include 16.

3 0

3 years ago

It took Brian 6 hours to drive to the sales conference. He took the same route on the way back home, but

g100num [7]

Answer: 54 mph

Step-by-step explanation:

d-the distance

s+9 - the speed to the conference

d=6*(s+9)

s- is the speed on the way back home

d=7*s

so 6*(s+9)=7*s

6s+54=7s

-6s -6s

54= 7s-6s

s=54 mph

6 0

3 years ago

Diego takes more than twice as long to assemble a computer as Kenneth does. Kenneth assembles a computer in 24 minutes. If Diego

Anastasy [175]

The answer to this problem is D<span />

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3 years ago

Write a line that passes through each pair of point (0,5)(-3,5)

Anni [7]

Answer:

(5-5)/(-3-0)= 0/-3= 0

y - 5 = 0(x - 0)

y - 5 = 0

y = 5

4 0

3 years ago

A monkey has a strict banana eating

daser333 [38]

Answer:
Any way the monkey eats minimum 12 banas on each day of 8 days amointing=12*8=96 bananas

Excess bananas eaten=112–96=16

Monkey eats 8 bananas more on sunny days

number of sunny days=16/8=2 days

Number of sunny days in these 8 days=2 days

8 0

2 years ago

Plz help me do this ​

Plz help me do this