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12345 [234]
4 years ago
12

Which equation best represents this situation?  The number 39 is equal to 13 subtracted from an unknown number.   A. 39 = r ÷ 13

  B. 39 = 13 + r   C. 39 = r – 13   D. 39 = 13r
Mathematics
2 answers:
joja [24]4 years ago
8 0
C! 39 is being subtracted. it's the only one where it's being subtracted. r is the unknown. 13 is being subtracted from r.
klasskru [66]4 years ago
5 0
39 = r - 13

It would be C :)

WHY? 

Because r is our unknown number, and if 13 is subtracted from it, then you know that it looks like : r - 13 :)

Thus, making our answer C) because it is the only one that has 13 being subtracted.

~Hope I helped!~
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Katie says ‘when you half a whole number that ends in 6, you always get a number that ends in 3.’ Write down an example to prove
mart [117]

Answer:

if you half 16 you get 8 not 3

6 0
4 years ago
HELP ASAP ASAP ASAP ASAP ASAP ASAP
pishuonlain [190]

Answer:

x = 35 feet.

Step-by-step explanation:

Given that,

The height of the person is 5 feet.

The height of the flag and the eye is (x-5) feet.

We can calculate using trigonometry.

\tan\theta=\dfrac{(x-5)}{30}\\\\\tan(45)=\dfrac{(x-5)}{30}\\\\(x-5)=30\\\\x=30+5\\\\x=35\ ft

So, the value of x is equal to 35 feet. The correct option is (c).

5 0
3 years ago
A bank loans a customer $66,000 for a period of 5 years. the simple interest rate of the loan is 10.5%. what is the total amount
MArishka [77]
66,000*0.15
9,900*5
49,500+66000
The answer is 115.500
I'm not sure if the whole thing is correct, but here is the easier way:
66,000(1+1.15)^5
6 0
3 years ago
Find the values of x and y. Show your work pls (7x-4) (4y+8) 24 and 31
abruzzese [7]

Answer:

The value of x is 5.

The value of y is 4.

Step-by-step explanation:

From the figure, the lengths of the lines with equal number of markings are equal.

So, we will have the length of 7x - 4 = 31.

We solve for 'x'.

We get: 7x = 35

⇒ x = 5

Similarly, 4y + 8 = 24

⇒ 4y = 24 - 8

⇒ 4y = 16

⇒ y = 4

Therefore, the value of x = 5 and y = 4.

Hence, the answer.

8 0
4 years ago
What is the reciprocal of 2 and 3/8
Leviafan [203]
To find the reciprocal of a number or fraction, just flip the numerator and denominator. Whole numbers are always over 1. 

 2 = \frac{2}{1}

The reciprocal of \frac{2}{1} =  \frac{1}{2} or .5 (one-half)

The reciprocal of \frac{3}{8} =  \frac{8}{3}
8 0
3 years ago
Read 2 more answers
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