MATHEMATICS HIGH SCHOOL

Lola needs to sign 96 invitations. Using a stopwatch that measures time to tenths of a second, it takes Lola 5.3 seconds to sign her full name. Going by the accuracy of the stopwatch, using this as the accurate determination,how long will Lola be able to finish signing all the invitations? A. 3.3 minutes B. 3.3125 minutes C. 8.48 minutes D. 8.5 minutes

Answers

Answer 1
Answer:

Answer:  Option 'C' is correct.

Step-by-step explanation:

Since we have given that

Total number of invitations = 96

Time taken to sign her full name = 5.3 seconds

Total time she needed to sign in 96 invitations is given by

96* 5.3\n\n=508.8\ seconds

And we know that

1\ minute=60\ seconds\n\n508.8\ seconds=(508.8)/(60)=8.48\ minutes

So, Lola will be able to finish signing all the invitations after 8.84 minutes.

Hence, Option 'C' is correct.
Answer 2
Answer:

Answer:

C

Step-by-step explanation:

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PLEASE HELP What is the solution to the sentence ''A number decreased by -5 is at least 7''?

If As income is 20% more than Bs income, how much percent is Bs income less than As income

Answers

As\ is\ 120\%\ Bs\n\n120\%=1.2\to(As)/(Bs)=1.2\n\n(As)/(Bs)=(12)/(10)\to(Bs)/(As)=(10)/(12)\to(Bs)/(As)=(5)/(6)\n\n(5)/(6)\cdot100\%=(500)/(6)\%=83(1)/(3)\%\n\n100\%-83(1)/(3)\%=16(2)/(3)\%\n\nAnswer:Bs\ income\ is\ 16(2)/(3)\%\ less\ than\ As\ income.

The formula that relates the length of a ladder, L, that leans against a wall with distance d from the base of the wall and the height h that the ladder reaches up the wall is mc024-1.jpg. What height on the wall will a 15-foot ladder reach if it is placed 3.5 feet from the base of a wall?

Answers

We will use the Pythagorean theorem to determine the height:h^(2)=15^(2) - 3.5^(2) h^(2) =225 - 12.25=212.75 Finally: h= √(212.75)=14.5859
Answer Ladder will reach the height of 14.59 feet ( to the nearest hundredths).

Answer: it's 14.6 feet

2) A student uses the substitution method to solve the system of equations below algebraically.x = 4y + 5
x = 3y - 2


Which equivalent equation could be used?
y = 3(4y + 5) - 2
x = 3(4y + 5) - 2
x = 4(3y - 2) + 5
4y + 5 = 3y - 2

Answers

Pretty sure it's the last one.

18 4/7 into an improper fraction

Answers

To find an improper fraction, you want to do 18* 7 which equals, 126, so then 126+4=130. So then 130/7 would be your answer.

Final answer:

The mixed number 18 4/7 can be converted to an improper fraction by first multiplying the whole number (18) by the denominator of the fraction (7), then adding the numerator of the fraction (4). This results in the improper fraction 130/7.

Explanation:

The problem is asking to convert the mixed number 18 4/7 into an improper fraction. A mixed number contains a whole number and a proper fraction combined. An improper fraction is a fraction where the numerator (top number) is greater than or equal to the denominator (bottom number).

To convert a mixed number to an improper fraction, you multiply the whole number by the denominator of the fraction, then add the numerator of the fraction.

So in the case of the mixed number 18 4/7, the calculation would be as follows: (18 * 7) + 4 = 130.

So, 18 4/7 as an improper fraction is 130/7.

Learn more about Improper Fraction here:

brainly.com/question/34414077

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How would you find the value of x is x equals five, in the equation...5x+29=45?

Answers

5x+29 = 45
5x = 16 (subtract 29 from both sides)
x = 16/5.

That is the answer, I don't know where you got the value of 5 but it doesn't make sense. To prove it, let's try put it into the equation:

5x5 + 29 =45
25 + 29 = 45
Wrong! 25 + 29 = 54.

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Answers

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Product of last 2 digits = 1*6  = 6
As a decimal it would be 0.0016000000000000005.
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