i am a 3digit number that is less than 500. My ones digit is twice the hundreds digit. The sum of the three digits is 14. What number am I?

Answers

Answer 1

Answer: the three possible answers are 428, 356, and 284. All are less than 500, all have a units digit twice the hundreds digit, and all have 14 as a sum of digits.

Answer 2

Answer: ooh fun

so xyz=number
z=2x
x+y+z=14
subsitute z=2x into x+y+z=14
x+y+(2x)=14
3x+y=14
number must be 3 digit and less thaan 500
since the tens digit's max is 9 then
z+x≥14-9
z=2x
3x≥5
x max=5 because 500 is max so
x could be 2,3,4 so

284
356
428
are the numbers

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Sasha drove from her house to the grocery store in 20 minutes. Her return trip took 15 minutes. If the store is 7 miles from her house, what was Sasha's average speed for the round trip, in miles per hour?

Answers

Total time = 35 minutes
Total distance = 14 miles

I would set this up as a proportion

14/35 = x/60 (60 minutes in an hour)
Now cross multiply and solve.
35x = 840
840/35 = 24 mph

distance = rate * time
7 miles = rate * 20 minutes
7/20 = 20r/20
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Kate made a box to hold her jewelry collection. She used 42 inches of wood to build the sides of the box. If the box was 9 Inches wide, how long was the box

Answers

We can use the 9 inches wide to determine that 18 inches of the 42 inches are the wide sides. 42 - 18 = 24, so we divide 24 by how many long sides there are, 2. 24 ÷ 2 = 12. The box was 12 inches long.

Gina was earning $10 per hour. THen she recieved a 10% pay increase. Next month, her pay rate will decrease by 10%. What will Gina's pay rate be next month? a. $10.10 per hour b. $12.10 per hour c. $9.90 per hour d. $10.00 per hour. Im thinking it would be c or d. PLEASE EXPLAIN?!

Answers

Third month Gina's payrate will be $9.9 per hour.

Given that,

Currently earning $10 per hour.
Second month increase by 10%.
Next month decrease by 10%.

According to the given data, calculation of the given data are as follows,

Second month earning = $10 + ( $10 $*$ 10%)

= $10 + $1

= $11 per hour

Third month's earning = $11 - ( $11 $*$ 10%)

= $11 - $1.1

= $9.9 per hour

So, third month pay rate will be $9.9.

Learn more : brainly.com/question/11208509

So you start with $10, you calculate the 10%, then add it to it. This is the second month's pay. Now you have to calculate the 10%, then subtract this from the second month's pay.

10% of $10 = $1
Second month's earning = $10 + $1 = $11
10% of $11 = $1.1
Third month's earning = $11 - $1.1 = $9.9

Order the decimals from least to greatest 48.6, 1.6, 0.13, 153.7, 2.2, 49.2

Answers

Answer:

0.13, 1.6, 2.2, 48.6, 49.2, 153.7

Find x. Problem is in the picture

Answers

Answer:

x = 80

Step-by-step explanation:

$22 \degree = (1)/(2) (x \degree - 36 \degree) \n \therefore \: 22 \degree * 2 = (x \degree - 36 \degree) \n \therefore \: 44 \degree = x \degree - 36 \degree \n \therefore \: 44 \degree + 36 \degree= x \degree \n \therefore \: x \degree = 80 \degree \n \: \: \: \: \: \huge \red{ \boxed{ \therefore \: x = 80 }}$

Please simplify (y^-5)^4

Answers

Answer:1/y^20

Step-by-step explanation:

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