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Gnoma [55]
2 years ago
13

Simplify. 12 + 15 : 3x6 - 4

Mathematics
1 answer:
Pavel [41]2 years ago
6 0

Answer:

Step-by-step explanation:

Divide the numbers

12+153⋅6−412+153⋅x6−412+315​⋅x6−412+56−412+5x6−4 12+5x6−4

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A. &gt;<br> B. &lt;<br> C. =<br> D. none of the above
earnstyle [38]

Answer:

3.14 \times 10 ^{3}  < 2.6 \times 10^{3}

Step-by-step explanation:

3.14 \times 10 ^{3}

3140

2.6 \times 10 ^{4}

26000

7 0
2 years ago
Y = 7x - 15<br> y = 4x - 12
elena-14-01-66 [18.8K]

Answer:

Step-by-step explanation:

7x - 15 = 4x - 12

3x - 15 = -12

3x = 3

x = 1

y = 7(1) - 15

y = 7 - 15

y = -8

(1, -8)

3 0
3 years ago
The sum of three numbers is 94. The first number is six less than the second. The third number is three times the second. What a
Vika [28.1K]

Answer:

14, 20, 60

Step-by-step explanation:

Please let me know if you want me to add an explanation as to why this is the answer/how I got this answer. I can definitely do that, I just wouldn’t want to write it if you don’t want me to :)

3 0
3 years ago
Read 2 more answers
Help fast and thankssss god bless
Wewaii [24]

Answer:

1.

336-6=330

330÷6=55

55 Students in each bus

2.

242-11=231

231÷7=33

Each book was 33 dollars

3.

5+30+100=135

The smallest number is 5

4.

18-3=15

15÷8=1.8

Each candy bar was 1.8 dollars

5.

14-9=5

Her allowance is 5 dollars

6.

4+20+60=84

The smallest number is 4

7.

12-7=5

5×2=10

She had 10 in the begining

4 0
3 years ago
Which expression is equivalent to StartFraction 2 a + 1 Over 10 a minus 5 Endfraction divided by StartFraction 10 a Over 4 a squ
const2013 [10]

Answer:

\frac{(2a + 1)^2}{50a}

Step-by-step explanation:

Given

\frac{2a + 1}{10a - 5} / \frac{10a}{4a^2 - 1}

Required

Find the equivalent

We start by changing the / to *

\frac{2a + 1}{10a - 5} / \frac{10a}{4a^2 - 1}

\frac{2a + 1}{10a - 5} * \frac{4a^2 - 1}{10a}

Factorize 10a - 5

\frac{2a + 1}{5(2a - 1)} * \frac{4a^2 - 1}{10a}

Expand 4a² - 1

\frac{2a + 1}{5(2a - 1)} * \frac{(2a)^2 - 1}{10a}

\frac{2a + 1}{5(2a - 1)} * \frac{(2a)^2 - 1^2}{10a}

Express (2a)² - 1² as a difference of two squares

Difference of two squares is such that: a^2- b^2= (a+b)(a-b)

The expression becomes

\frac{2a + 1}{5(2a - 1)} * \frac{(2a - 1)(2a + 1)}{10a}

Combine both fractions to form a single fraction

\frac{(2a + 1)(2a - 1)(2a + 1)}{5(2a - 1)10a}

Divide the numerator and denominator by 2a - 1

\frac{(2a + 1)((2a + 1)}{5*10a}

Simplify the numerator

\frac{(2a + 1)^2}{5*10a}

\frac{(2a + 1)^2}{50a}

Hence,

\frac{2a + 1}{10a - 5} / \frac{10a}{4a^2 - 1} = \frac{(2a + 1)^2}{50a}

4 0
3 years ago
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