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Svet_ta [14]
3 years ago
5

What is 16% of 90? Please write how you did it

Mathematics
2 answers:
Crank3 years ago
7 0
10% of 90 is 9
5% of 90 is 4.5
1% of 90 is 0.9

So.. 9+4.5+0.9= 14.4
marin [14]3 years ago
6 0
You first set up a proportion 

16/100 = x/90

then cross multiply 16*90
and 100*x 
1440 = 100x
divide each side by 100 
1440/100 = 100x/100 
100 cancels out on the right side 
the answer is 
14.4=x
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The measure of the supplement of an angle is seven times as large as the measure of its complement find the measure of the angle
8090 [49]

Answer: original angle = 75°

Its supplement 105°

Its complement = 15°

Step-by-step explanation:

We know that,

  • Sum of supplementary angles is 180 degrees.
  • Sum of complementary angles is 90 degrees.

Let x be the original angle , then its supplement = 180° - x

its complement = 90° - x

As per given,

180° - x = 7(90° - x)

⇒ 180° - x = 630° - 7x

⇒  7x- x = 630° -180°

⇒  6 x = 450°

⇒  x = 75°  [divide both sides by 6]

So, original angle = 75°

Its supplement =  180° - 75° = 105°

Its complement = 90° -75° = 15°

Hence,  original angle = 75°

Its supplement 105°

Its complement = 15°

4 0
3 years ago
The left and right page numbers of an open book are two consecutive integers whose sum is 385. Find these page numbers.
Alona [7]
Consecutive integers are integers that follow one another. For example, 2,3,4,5,etc.... are consecutive integers

So algebraically, consecutive integers follow the form x, x+1, x+2, etc...

Since the sum of two consecutive integers is 239, this means:

x%2Bx%2B1=239

2x%2B1=239 Combine like terms on the left side

2x=239-1Subtract 1 from both sides

2x=238 Combine like terms on the right side

x=%28238%29%2F%282%29 Divide both sides by 2 to isolate x

x=119 Divide

So our first number is x=119

So to find the next number, simply add 1 to it to get 119%2B1=120

Answer: So our two page numbers are 119 and 120
6 0
3 years ago
What is 100.34567 in a fraction and word form? Thank you! ❤
amid [387]
Wait sorry in fraction for it is 1000000/10 
6 0
3 years ago
I need help pls. Question 11
g100num [7]

Answer:

T = .17m + 50

Step-by-step explanation:

T = Total cost

M = Mile

3 0
3 years ago
Over the summer, Janice spent 120 hours reading. She
zalisa [80]

Answer:

time spent reading science fiction= 18

time spent reading non-fiction=102

Step-by-step explanation:

15 percent off 120.00 is 102.00 The difference is 18.00

6 0
3 years ago
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