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3 years ago

???????????????????????????? Please answer ASAP. Very much appreciated. ❤️❤️❤️❤️

Mathematics

1 answer:

tankabanditka [31]3 years ago

3 0

She needs to earn at least 84 to buy the mp3 player

earnings=earningsperhour times numberofhoursworked

earnings per hour=12 dollars
number of hoursworked=h

therefor
earnings=12 ties h or12h

earnings is at least 84
earnings is greater than or equal to 84
earnings<u>></u>84
12h<u>></u>84

solve
12h<u>></u>84
divide both sides by 12
h<u>></u>7
she needs to work at least 7 hours

to graph, draw a line at x=0 and shade to the right, make the line solid

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A car travels 60 miles in 50 minutes. Calculate the average speed of the car in mph.

earnstyle [38]

Average speed: 72 mph
Explanation:
To get the car's average speed, all you really need to know is
the total distance travelled by the car
the total time it needed to cover that distance
In your case, you know that the car travelled for a total of 60 miles and that it needed 50 minutes to do so.
Since you need to express the average speed in miles per hour, not miles per minute, you're going to have to use a simple conversion factor to get you from minutes to hours.
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6 0

3 years ago

Read 2 more answers

Can someone please help me answer this question ASAP

Pachacha [2.7K]

Answer:

i looked it up and got 2 difernt answers one said -11 the other said 0 so im sorry idk

Step-by-step explanation:

6 0

3 years ago

A line passes through the points (4, 9) and (12, 20). What is the slope of the line?

Mashutka [201]

Answer:

$\frac{11}{8}$

Step-by-step explanation:

→ State the gradient formula

( y₂ - y₁ ) ÷ ( x₂ - x₁ )

→ Find x₁ , x₂ , y₁ and y₂

x₁ = 4 , x₂ = 12 , y₁ = 9 and y₂ = 20

→ Substitute in the values

$\frac{20-9}{12-4}$

→ Simplify

$\frac{11}{8}$

4 0

3 years ago

A 210-N mass is suspended from a horizontal beam by two cables that make angles of 29 degrees and 53 degrees with the beam. Find

natta225 [31]

The tension in the cable is given by the newton's first law will be 163.622 N.

<h3>What is newton's first law?</h3>

The summation of the force is equal to zero.

The formula is given as

ΣF = 0

Where m is the mass of the body and a is the acceleration.

A 210-N mass is suspended from a horizontal beam by two cables that make angles of 29 degrees and 53 degrees with the beam.

Then the tension in the cable will be

Let T be the tension in the cable.

T sin 29° + T sin 53° – 210 = 0

On simplifying, we have

T (sin 29° + sin 53°) = 210

T = 163.622 N

More about the newton's first law link is given below.

brainly.com/question/974124

#SPJ1

6 0

3 years ago

If you answer both of these i will give <br> Brainliest ( if thats how you spell it )

Rufina [12.5K]

Answer:

first one:4/10

second one: 8/24

Step-by-step explanation:

i think this works but a hundred 100% sure though.

here you go hope its correct.

4 0

3 years ago