1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
mart [117]
2 years ago
14

When Mohammed was born, the baby was 21 inches tall. at his last check up, he was 38 inches tall. what is the percent increase i

n his growth to the nearest percent? round it to the nearest 100th
this is math btw and im giving 5 star and 15 points.​

Mathematics
1 answer:
denis23 [38]2 years ago
5 0

Answer:

80.95

Step-by-step explanation:

Percentage increase = \frac{New Value - Old Value}{Old Value} *100

=> (38-21)* 100/21 = 80.9523%

The answer round it to the nearest 100th = 80.95%

You might be interested in
the gasoline gauge on a van initially read 1/8 full. When 15 gallons were added to the tank the gauge read 3/4 full. How many mo
Nostrana [21]
So 15 gallons of gas brought it from 1/8 full to 3/4 full.

Let's change 3/4 to the equivalent fraction 6/8  so that the denominators are the same.    (3/4 = 6/8)

So 15 gallons of gas brought it from 1/8 to 6/8   Those 15 gallons must be 5/8 of the tank's capacity   6/8 - 1/8 = 5/8

So 15 is 5/8 of what number?  (This will tell us the capacity of the whole tank)

15 = 5/8n
Divide both sides by 5/8 (remembering to multiply by the reciprocal 8/5)
15 ÷ 5/8  = 15 x  8/5  = 18

So the tank holds 24 gallons and (since it is 3/4 full or has 18 gallons) it needs 6 gallons to fill the tank.

Check - at first  1/8 full (1/8 of 24 = 3)  So we started with 3 gallons. 15 gallons added to the 3 gallons is 18 gallons.  Now the tank is 6/8 (3/4 full).  The remaining 1/4 (2/8) of a tank is the difference between 18 and it's capacity (24 gallons)  so it will need 6 gallons to fill it up..

3 0
2 years ago
Show both decimal places (5.06).
lilavasa [31]

a. the cost of a call for six minutes is 0.70.

b.the cost of a 14-minute call is 2.62.

c.the cost of a 9 ½2-minute call is 1.66.

<h3>How to find the cost of each call ?</h3>

given that

rate schedule for an m-minute call from any of its pay phones 0.70.

c(m) = 0.70 when m<=6

c(m) = 0.70+ 0.24(m-6) when m>6 & m is an integer

c(m) = 0.70+0.24((m-6)+1) when m>6 & m is not an integer.

a. to find the cost of a call for six minutes.

already given that c(m) =0.70 when m=6.

Therefore, the cost of a call for six minutes is 0.70.

b. to find the cost of a 14-minute call.

according to given information

c(14) = 0.70 + 0.24(m - 6) \\ c(14) = 0.70 + 0.24(14 \: - 6)  \\c(14) = 0.70 + (0.24 \times 14) - (0.24 \times 6) \\c(14) = 0.70 + (3.36 - 1.44) \\ c(14) = 0.70 + 1.92 \\ c(14) = 2.62

Therefore,the cost of a 14-minute call is 2.62.

c.to find the cost of a 9 ½2-minute call

according to given information

c(9  \frac{1}{2} 2) = 0.70 + 0.24((9 \frac{1}{2} 2 - 6) + 1) \\ c(9  \frac{1}{2} 2) = 0.70 + 0.24((9 - 6) + 1) \\ c(9  \frac{1}{2} 2) = 0.70 + 0.24(3+ 1) \\ c(9  \frac{1}{2} 2) = 0.70 + 0.24(4) \\ c(9  \frac{1}{2} 2) = 0.70 + 0.96 \\ c(9  \frac{1}{2} 2) = 1.66

Therefore,the cost of a 9 ½2-minute call is 1.66.

Learn more about problems on cost of call, refer:

brainly.com/question/16584226

#SPJ9

4 0
1 year ago
Use the function to evaluate the indicated expressions and simplify.
Musya8 [376]

9514 1404 393

Answer:

  • f(x²) = x² +5
  • (f(x))² = x² +10x +25

Step-by-step explanation:

Put the argument in place of x and evaluate the desired expression.

__

1. f(x²) = x² + 5 . . . . . . straight substitution for x

__

2. (f(x))² = (x +5)²

  = (x +5)(x +5) = x(x +5) +5(x +5) = x² +5x +5x +25

  (f(x))² = x² +10x +25

6 0
2 years ago
You brought lunch at the corner restaurant. Your bill comes 12.80. You want to leave 15% Tip. How much tip should u leave
Galina-37 [17]
1st do 12.80 times .15 because you changed the percent to a decimal and you get $1.92 that is 15%. 
8 0
3 years ago
Grace is riding her bike to the store from her house following a straight path. After 10 minutes, grace is 4 miles from her home
Juliette [100K]

Answer:

24 mph (miles per hours)

Step-by-step explanation:

she is going 2 miles every 5 minuets. 5 can go in to 60 12 times. and 2 times 12 is 24.

7 0
3 years ago
Other questions:
  • A cruise left port A and traveled towards port B 225 km away. After 1.5 hours of travel, the cruise was stopped for a half an ho
    8·1 answer
  • A teacher is making identical packets using 92 crayons and 23 sheets of paper. What is the greatest number of packets she can ma
    13·2 answers
  • Does the median of a dataset have to be the value of the data set? Explain
    10·2 answers
  • Round 491,778 to the nearest hundred
    5·1 answer
  • What is the answer to this question?
    11·1 answer
  • Can someone help me on this math question pls I have 12 more questions I need help on too !
    10·1 answer
  • What is the distance between the points (4, 9) and (4, 2)? A) 2 B) 5 C) 7 D) 8
    10·1 answer
  • 2<br> 3(9x - 6) = 4x + 10<br> What is the value of X In the equation
    13·1 answer
  • I got 1.3k points somehow so im feeling nice<br> giving 50 points+brainliest to the first answer
    10·1 answer
  • Solve (x - 3)^2 = 5 p<br><br> please help
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!