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Kobotan [32]
3 years ago
11

Solve each proportion 5/15 = n/9​

Mathematics
2 answers:
Nitella [24]3 years ago
8 0

Answer:

n = 3

Step-by-step explanation:

5/15 = n/9​

We can solve using cross products

15 n = 5*9

15n = 45

Divide each side by 15

15n/15 = 45/15

n = 3

viva [34]3 years ago
4 0

Answer:

n = 3

Step-by-step explanation:

1/3=n/9     (simplify)

1/3*9=n     (multiply each side by 9)

9/3=n    (simplify)

3=n    (simplify again)

i hope this helped!

please give brainliest :)

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Naily [24]

Answer:

the answer is = 61

Step-by-step explanation:

6 0
3 years ago
What is 6/10 is <br>it A 3/5 B 5/7 or C 9/3
olga_2 [115]
6    divided by 2           3
---                          =     -----
10  divided by 2           5

therefore your answer is option A

hope this helps :)
8 0
4 years ago
Read 2 more answers
Which shows the expression below in simplified form? (7 × 10-3) - (2.3 × 10-6) A. 6.9977 × 10-3 B. 6.99977 × 10-3 C. 6.9977 × 10
rosijanka [135]

Option A

(7 \times 10^{-3}) - (2.3 \times 10^{-6}) = 6.9977 \times 10^{-3}

<em><u>Solution:</u></em>

Given expression is:

(7 \times 10^{-3}) - (2.3 \times 10^{-6})

To evaluate the expression, let us make the exponent of 10 same

2.3 \times 10^{-6} = 0.0023 \times 10^{-6+3} = 0.0023 \times 10^{-3}

[ Here, decimal point is moved three times left, so add 3 ]

Therefore,

(7 \times 10^{-3}) - (2.3 \times 10^{-6}) = (7 \times 10^{-3}) - (0.0023 \times 10^{-3})

\text{Take the } 10^{-3} \text{ as common }

(7 \times 10^{-3}) - (0.0023 \times 10^{-3}) = 10^{-3}(7-0.0023)\\\\\text{ Solve for terms inside the bracket }\\\\(7 \times 10^{-3}) - (0.0023 \times 10^{-3}) = 10^{-3} \times 6.9977\\\\\text{Therefore, the simplified expression is: }\\\\(7 \times 10^{-3}) - (0.0023 \times 10^{-3}) = 6.9977 \times 10^{-3}

Thus Option A is correct

6 0
4 years ago
Can you guys distribute this problem and then figure out how many solutions does this problem have 5(m-3)=7m-17
Cloud [144]
                         5 (m - 3)  =  7m - 17

Eliminate
parentheses:        5m - 15  =  7m - 17

Subtract 5m
from each side:          - 15  =  2m - 17

Add 17
to each side:                  2  =  2m

Divide
each side
by  2 :                            1  =  m  

No more solutions.
Only one.

6 0
4 years ago
Write 1,386 as the product of its prime factors. A. 2 x 693 B. 2 x 3 x 7 x 33 C. 2 x 3 x 3 x 7 x 11 D. 2 x 3 x 231
Lemur [1.5K]
2 / 1386
3 /  693
3 /  231
7 /  77
11/ 11
     /  1

Prime factors = 2*3*3*7*11

Option C.
4 0
3 years ago
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