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1 year ago

Deandre downloaded 8 apps onto his tablet in 12 seconds. At this rate, how many apps could he download in one minute?

Mathematics

2 answers:

Doss [256]1 year ago

8 0

Answer: 40

Step-by-step explanation:

Given : Deandre downloaded 8 apps onto his tablet in 12 seconds.

By using UNITARY METHOD, the number of apps he download in one seconds will be :-

$\dfrac{8}{12}=\dfrac{2}{3}$

Also, 1 minute = 60 seconds

At this rate, the number of apps he can download in 60 seconds will be :-

$\dfrac{2}{3}\times60=40$

Hence, the number of apps he can download in one minute = 40

anygoal [31]1 year ago

5 0

Answer:

40 apps

Step-by-step explanation:

8 apps per 12 seconds is a rate of 8/12 (apps/sec) = 2/3 (apps/sec)

2/3 (apps/sec) × 60 (sec) = 40 (apps)

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What is the answer please

Marina86 [1]

Hey there!

Use The Pythagorean theorem. It’s a^2+b^2=c^2. Plug in 11 and 60. The equation would be 11^2+60^2=c^2. Simplify to get 121+3600=c^2. Simplify again to get 3721=c^2. Sqaure root each side to get c=61. The answer is the last one, c=61.

I hope this helps!

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1 year ago

The total square footage of wall space to be painted is 575 square ft. If a gallon of paint covers 250 square feet, how many qua

mars1129 [50]

5.75 quarts of paint required for the project

Explanation:

Usually one quart of paint cover 100 square feet

Since, a gallon covers 250 square feet, it means that

one gallon of paint is equal to $\frac{250}{100} =2.5$ quarts of paint.

Number of gallon required to paint 575 square feet,

$=\frac{575}{250} \\=2.3 gallons$

So, 2.3 gallons is equal to,

$=2.3*2.5\\=5.75 quarts$

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1 year ago

Which graph represents the solution set for the quadratic inequality x2 + 2x + 1 > 0?

ipn [44]

Answer:

We have to determine the graph of the given inequality as:

$x^2+2x+1>0$

on solving this equation we get:

$(x+1)^2>0$

Since we know that:

$(x+1)^2=x^2+1^2+2\times x\times 1\\\\(x+1)^2=x^2+1+2x$

Now we know that when $x=-1$ the value of:

$(x+1)^2=0$

Also for the value other than -1 the function being a quadratic function will always give a non-zero positive value.

Hence, range of the function in intervals could be written as:

(-∞,-1)∪(-1,∞).

Hence, the graph of the function will be the whole of the number line with a open circle on -1.

5 0

1 year ago

Read 2 more answers

Mrs. Kermit has 29 markers. She gives 12 markers to Mr. Cooke and divides the rest among 5 other teachers. If each of the teache

romanna [79]

Answer: 2 markers.

Step-by-step explanation:

1. You know that she gives 12 markers to Mr. Cooke, then the rest among is:

29 markers-12 markers=17 markers

2. She divides the rest among 5 other teachers and each one of them get the same number of markers. So, you need to divide 17 markers by 5 teachers as following:

17 markers/5=3.4 markers

3. But the number of marker each one teacher has can't be a decimal number, so this number must be: 3 markers for each teacher.

3. The number of markers that will be left over is:

17 markers-(5*3 markers)=2 markers

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2 years ago

Alice sleeps an average of 9 hours per night a cat can sleep up to 20 hours per day about how many more hours does a cat sleep i

SashulF [63]

Answer:

330 hs

Step-by-step explanation:

If Alice sleeps an average of 9 hs and her cat sleeps an average of 20 hours each day we can say that her cat sleeps an average of 11 hours more per day than her.

If the cat sleeps 11 hours more than her per day, for getting the hours he sleeps more by month we just need to multiply the daily value by the number of days in a month. Thus,

30 * (11) = 330

So, her cat sleeps an average of 330 hours more than her in a month, which can be decomposed in 11 hours a day.

I hope it is understandable.

7 0

1 year ago