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Alex777 [14]
3 years ago
7

What is the smallest whole number that is equal to seven times the sum of its digits?

Mathematics
2 answers:
Morgarella [4.7K]3 years ago
5 0

Answer:

21

Step-by-step explanation:

DochEvi [55]3 years ago
5 0
21.

Explanation:

The two-digit number ab stands for 10a + b since the first digit represents 10s and the second represents units. If 10a + b = 7(a + b), then 10a + b = 7a + 7b, and so 3a = 6b, or, more simply, a = 2b. That is, the second digit must be twice the first. The smallest such number is 21.
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Can someone help please!<3
elena-s [515]
The equation that works for this is
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8 0
2 years ago
TJ invested $4000 in a bond at a yearly rate of 2% for 30
slavikrds [6]

Answer:

2.5 years

Step-by-step explanation:

I = 200     T=200/4000 0.2  = 2.5 years

P= 4000

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T = ?  

4 0
3 years ago
What's 75/100 in simplest form
bagirrra123 [75]
Divide the numerator and denominator by their gcf (25)
75/25= 3
100/25= 4

Final answer: 3/4
7 0
3 years ago
Finley and Cooper are wanting to go to SkyZone. Finley pays $53.75 for 5 hours. How much will Cooper pay for 3 hours?
IrinaK [193]

Answer:

<em>10.75 x 3 = $32.25</em>

Step-by-step explanation:

first, we need to figure out how much the cost is for one hour:

53.75/5 = 10.75

therefore, the cost at skyzone for 1 hour is $10.75 , BUT, we still need to figure out the time for 3 hours.

so, 10.75 x 3 = $32.25

6 0
2 years ago
Read 2 more answers
A part of the real number line is shown.
luda_lava [24]
It is T because the sign in front of 50 means to square the number after it. So 50/2=25.
6 0
3 years ago
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