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3 years ago

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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Evaluate 1+13 x 2+5^2 - 3+15 - 3

Naily [24]

Answer:

the answer is = 61

Step-by-step explanation:

6 0

3 years ago

What is 6/10 is 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

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

Solution:

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

Solve each proportion 5/15 = n/9​

Solve each proportion 5/15 = n/9