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Dmitriy789 [7]
3 years ago
5

I am between 7,000,000 and 8,000,000. all my digits are odd. all the digits in my thousands period are the same. the sum of my d

igit is 31. what number am i? give as many answers as you can. what strategies did you use to find the mystrey number
Mathematics
2 answers:
lozanna [386]3 years ago
7 0

Answer:

The number can be many numbers like: 7,777,111  or 7,555,333  or 7,111,777

A: 7,777,111

We have four 7's and three 1's

7*4=28

1*3=3

28+3=31

B: 7,555,333

We have one 7, three 5's and three 3's.

5*3=15

3*3=9

15+9+7=31

These also can be 7,333,555 or 7,111,777.

aniked [119]3 years ago
4 0
There are many possibilities so I am going to give 3 answers 777113 777131 777311
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HELP ME PLEASE
Mashutka [201]

Answer:

9 + \frac{n}{3} - 6 = 7

Step-by-step explanation:

Given

9 + \frac{n}{3} - 6

Required

Evaluate when n = 12

Substitute 12 for n in 9 + \frac{n}{3} - 6

9 + \frac{n}{3} - 6 = 9 + \frac{12}{3} - 6

Simplify the fraction

9 + \frac{n}{3} - 6 = 9 + 4 - 6

9 + \frac{n}{3} - 6 = 7

4 0
3 years ago
The price of a watch was increased by 7% to £1350. What was the price before the increase? Give your answer to the nearest penny
frutty [35]

Answer:

1261.68

Step-by-step explanation:

1350 = the increased watch price= 107% of the original

1350= 1.07x

1261.68224299

Check:

7% of 1261.68224299 is 88.317757

1261.68224299 + 88.317757 = 1349.9 = 1350

Round:

1261.68224299  

To the penny= to the hundreth= 1261.68

3 0
3 years ago
F(x) = 4x^2 + 3x - 11<br> f(-3)
Mnenie [13.5K]
Just plus in x for -3
f(x) = 4(-3)^2 + 3(-3) - 11
f (x) = 4(9) -9 - 11
f(x) = 36 - 20
f(x) = 16
3 0
3 years ago
Which of the following functions is not a sinusoid?
Nezavi [6.7K]
A sinusoid is cyclical and has a period or frequency.

y = sin x is a sinusoid, with a period of 2π.
y = √x is not a sinusoid.
y = cos x is a sinusoid with a period of 2π.

Answer: y = √x is not a sinusoid.
8 0
3 years ago
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Solve for x using the quadratic formula. 4x^2-3x+8=0
Paraphin [41]

Answer:

answer : x = 3±√ 119 / 16

is correct answer ...plz mark my answer as brainlist ... plzzzz and plz vote me as brainlist

8 0
3 years ago
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