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Juliette [100K]
4 years ago
9

Of the remaining numbers, which are whole numbers? -1.8,-5/4,3.2,2/3

Mathematics
1 answer:
Zielflug [23.3K]4 years ago
8 0

Answer:

None of them are whole numbers. Whole numbers are numbers that don’t need fraction bars or decimals or roots.

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Steve have 9 different shirts<br> 5 different hats<br> 4 different scarves <br> On Monday
Paraphin [41]

Answer:

180 combinations

Step-by-step explanation:

6 0
3 years ago
Jamie, John, and Jake are on the prom committee. They are responsible for blowing up the balloons for prom night. John can blowu
san4es73 [151]
First, pass all the rate of inflation to ballons/hour

John: 1 b/15s * 3600 s/h = 240 b/h
Jamie: 1 b/20s * 3600 s/h = 180 b/h
Jake: 180 b/h

Then sum the rates to obtain the total rate

Total ballons per hour: 240 b/h + 180 b/h + 180b/h = 600 b/h

If it passes x hours the number of ballons inflated is 600*x

The number of ballon defective are 600*x/80

The number of ballons effectiveley inflated = 600x -600x/80 = 600x - 7.5x = 592.5x.

Answer: option A)
6 0
3 years ago
Elia rode her bicycle from her house to the beach at a constant speed of 18 kilometers per hour, and then rode from the beach to
sasho [114]

Answer:

\displaystyle b=0.45\ h

\displaystyle p=0.55\ h

Step-by-step explanation:

<u>Cinematics </u>

When an object moves at a constant speed, it can be computed as

\displaystyle v=\frac{x}{t}

Where x is the distance traveled and t the time needed to complete it at the constant speed v

If we wanted to compute t from the equation above, then

\displaystyle t=\frac{x}{v}

Elia rode her bicycle from her house to the beach at 18 km/h and then from the beach to the park at 15 km/h, taking 1 hour in the whole travel, each distance being equal. If we call b as the number of hours it took Elia to ride from her house to the beach, and p the number of hours it took her to ride from the beach to the park, then we can compute

\displaystyle b=\frac{x}{18}

\displaystyle p=\frac{x}{15}

The question doesn't ask for something in particular, so I'm helping you by solving the complete problem. We know the total time is 1 hour, so

\displaystyle b+p=1

Replacing b and p

\displaystyle \frac{x}{18}+\frac{x}{15}=1

Multiplying by 90

\displaystyle \frac{90x}{18}+\frac{90x}{15}=90

Simplifying and solving for x

\displaystyle 5x+6x=90

\displaystyle 11x=90

\displaystyle x=\frac{90}{11}=8.18\ km

We finally compute b and p

\displaystyle b=\frac{8.18}{18}=0.45\ h

\displaystyle p=\frac{8.18}{15}=0.55\ h

8 0
4 years ago
Factor the expression completely:<br> 2x² + 5x - 12
Finger [1]
Using the slip and slide method:

2x^2+5x-12
x^2+5x-24
(x+8)(x-3)

(x+8/2)(x-3/2)
(x+4)(2x-3)

Final answer: (2x-3)(x+4)
7 0
3 years ago
Read 2 more answers
Explain at least three ways of solving a quadratic equation in as much detail as you can. You may use an example if necessary​
lisov135 [29]

Answer:

factoring, using the quadratic formula, and completing the square.

Step-by-step explanation:

4 0
3 years ago
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