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Marina CMI [18]
3 years ago
8

At the track meet, Ervin won the 100-meter dash with a time of 12.45 seconds. Landon finished second. Landon's time contains a 4

with a value 1/10 the value of the 4 in Ervin's time. What could be Landon's time in the 100-meter dash?
Mathematics
1 answer:
solong [7]3 years ago
3 0
Breaking down the value 12.45 

12.45 = 10 + 2 + 0.4 + 0.05

The value of digit '4' in 12.45 is 0.4

1/10 of 0.4 is 0.4 ÷ 10 = 0.04

One possibility of Landon's time = 12.54 [Need to make sure that Landon takes longer than Ervin since he comes second]
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Bharat types 20 words/min. How many words can he type in each length of time? a) 5 min b) 30 min c) 23 min
e-lub [12.9K]

Bharat can type words in lengths of time as 100 words, 600 words, and 460 words in 5 minutes, 30 minutes, and 23 minutes respectively.

<h3>What are Arithmetic operations?</h3>

Arithmetic operations can also be specified by subtracting, dividing, and multiplying built-in functions.

* Multiplication operation: Multiplies values on either side of the operator

For example 12×2 = 24

Bharat types 20 words per minute which are given in the question.

To determine the number of words can he type in each length of time

We have to multiply the time by his typing speed.

The number of words that can be typed by Bharat in 5 minutes :

⇒ 20 × 5

⇒ 100

The number of words that can be typed by Bharat in 30 minutes :

⇒ 20 × 30

⇒ 600

The number of words that can be typed by Bharat in 23 minutes :

⇒ 20 × 23

⇒ 460

Therefore, He can type words in lengths of time as 100 words, 600 words, and 460 words in 5 minutes, 30 minutes, and 23 minutes respectively.

Learn more about Arithmetic operations here:

brainly.com/question/25834626

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3 0
1 year ago
Mollie had a 15–ounce cappuccino at her neighborhood coffee shop. The cappuccino had 170 calories. If Mollie walks for one hour,
ZanzabumX [31]

Answer:

noicr

Step-by-step explanation:

4 0
3 years ago
Write the following proportion: 8 is to 64 as 2 is to x.
Ksenya-84 [330]
x = 4

8 multiplied by itself is 64.
And so, 2 times itself is 4.
3 0
3 years ago
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Solve the equation. x2 18x 81 = 25<br> a. 14, 4<br> b. –4, –14<br> c. 14, –14<br> d. –4, 4
Snowcat [4.5K]

Answer:

The answer is the option B

-4,-14

Step-by-step explanation:

we know that

The formula to solve a quadratic equation of the form ax^{2} +bx+c=0 is equal to

x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}

in this problem we have

x^{2}+18x+81=25  

x^{2}+18x+56=0  

so

a=1\\b=18\\c=56

substitute in the formula

x=\frac{-18(+/-)\sqrt{18^{2}-4(1)(56)}} {2(1)}

x=\frac{-18(+/-)\sqrt{100}} {2}

x=\frac{-18(+/-)10} {2}

x1=\frac{-18+10} {2}=-4

x2=\frac{-18-10} {2}=-14

7 0
3 years ago
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Please help me...I don't get it-
DaniilM [7]

Answer:

1. It would be the second block. Bill reads 3 books EACH week. I know you’re looking for that X to be 1 but if you look 3 books x 5 weeks = 15 books and so on.

2. It would be the first block. Exactly on 6 weeks he reads 6 books meaning that by week 3 (which is half) he would have read haof the books (2). And same for week 12 you and another 4 which gets you 8 books.

3. It’s the last block. On week 12 he read 4 books. Half of 12 is 6 so it would be half books and week 3 is half of that which is 1 book per 3 weeks.

4. Is the third block. (Process of elimination lol) but also easily you can find the rate of each week by dividing the 15 books by 10 weeks which gets you 1.5 books read per week

5 0
2 years ago
Read 2 more answers
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