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2 years ago

Simplify using order of operations 12-36 divided by 9

Mathematics

1 answer:

tiny-mole [99]2 years ago

8 0

Answer:

Step-by-step explanation:

36/9=4

12-4=8

8 is your answer

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Mr. Fink's economy car can travel 420 miles on a 12-gallon tank of gas. Determine how many miles he can travel on 8 gallons.

Sphinxa [80]

Answer:

280 miles

Step-by-step explanation:

So, 420 miles=12 gallons

That means that for 1 gallon you would be able to go 35 miles.

Just multiply that by 8. 35*8=280

3 0

2 years ago

Suppose a flare is shot from the top of a 120 foot building at a speed of 160 feet per second. The equation h = ?16t + 160t + 12

insens350 [35]

Answer:

The time taken for the flare to hit the ground is approximately 10.7 seconds.

Step-by-step explanation:

Given : Suppose a flare is shot from the top of a 120 foot building at a speed of 160 feet per second. The equation $h =- 16t^2+ 160t + 120$ models the h height at t seconds of the flare.

To find : How long will it take for the flare to hit the ground?

Solution :

The equation $h =- 16t^2+ 160t + 120$ models the h height at t seconds of the flare.

The flare to hit the ground when h=0.

Substitute in the equation,

$-16t^2+ 160t + 120=0$

Applying quadratic formula, $x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

Where, a=-16, b=160 and c=120

$x=\frac{-160\pm\sqrt{160^2-4(-16)(120)}}{2(-16)}$

$x=\frac{-160\pm\sqrt{33280}}{-32}$

$x=\frac{-160\pm 182.42}{-32}$

$x=\frac{-160+182.42}{-32},\frac{-160-182.42}{-32}$

$x=−0.70,10.70$

Reject the negative value.

Therefore, the time taken for the flare to hit the ground is approximately 10.7 seconds.

4 0

2 years ago

Half a quarter. Please answer

Mila [183]

Answer:

1/8

Step-by-step explanation:

1/2 of 1/4 = 1/2*1/4 = 1/8

4 0

1 year ago

sue, an experienced shipping clerk, can fill a ertain order 9 hours. Jim, a new clerk, needs 10 hours to do the same job. workin

GenaCL600 [577]

Let x be the time required to do the job when they work together.
1/x = 1/9 + 1/10 = 19/90
x = 90/19 = 4.7 hours

8 0

2 years ago

Which values from this set {−12, −9, −3, 0, 3, 6} satisfy this inequality?

Vesna [10]

The values -3, -9 and -12 satisfy the inequality.

In this question we evaluate each element of the set to determine whether value belongs to the inequation given on statement:

x = 0

$-13\cdot 0 + 3 \ge 6$

$3\ge 6$ (FALSE)

x= -3

$-13\cdot (-3) +3 \ge 6$

$42\ge 6$ (TRUE)

x = -9

$-13\cdot (-9)+3 \ge 6$

$120\ge 3$ (TRUE)

x = -12

$-13\cdot (-12) +3 \ge 6$

$159 \ge 6$ (TRUE)

The values -3, -9 and -12 satisfy the inequality.

We kindly invite to see this question on inequalities: brainly.com/question/17675534

7 0

2 years ago