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OLga [1]
3 years ago
15

HELP! My teacher didn't teach half the material! How do I do this!?!?!?!

Mathematics
1 answer:
Sladkaya [172]3 years ago
5 0

Answer:

<h2>x=-0.3</h2>

Step-by-step explanation:

1-(-7.2x+3.5)=5+3(7.4x-1) first parenthesis

1+7.2x-3.5=5+22.2x-3  

7.2x-2.5=2+22.2x (x on one side and numbers on other)

22.2x-7.2x= -2-2.5

15x=4.5 divide by 15

x=-4.5/15

<h2>x=-0.3</h2>

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chubhunter [2.5K]
My exact answer is 2.2
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3 years ago
How many groups of 1/2 days are in 1 week? Write a multiplication equation or a division equation to represent the question, the
worty [1.4K]

Answer:

14 groups

Step-by-step explanation:

Given

Groupings = \frac{1}{2}\ day

Duration = 1\ week

Required

Determine the number of group in the week

To do this, we simply divide the duration by the number half day group.

This gives:

Group = \frac{Duration}{Groupings}

Group = \frac{1\ week}{1/2\ days}

Convert week to days

Group = \frac{7\ days}{1/2\ days}

Group = \frac{7}{1/2}

Group = 7 / \frac{1}{2}

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4 0
3 years ago
Someone help me please
galben [10]

Answer:

∛27 = 3

Step-by-step explanation:

A radical is simply a fractional exponent: a^{(\frac{m}{n})} = \sqrt[n]{a^{m} }

Hence, ∛27 = 27^{(\frac{1}{3})}

Since 27 = 3³, then:

You could rewrite ∛27 as ∛(3)³.

\sqrt[3]{3^{(3)} } = 3^{[(3)*(\frac{1}{3})]}

Multiplying the fractional exponents (3 × 1/3) will result in 1 (because 3 is the <u><em>multiplicative inverse</em></u> of 1/3). The multiplicative inverse of a number is defined as a number which when multiplied by the original number gives the product as 1.

Therefore, ∛27 = 3.

3 0
3 years ago
Read 2 more answers
To prepare a chocolate cake, 2 1/4 cups of flour were used. How many grams of flour was used if each cup of flour weighs 120 gra
Marianna [84]
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4 0
3 years ago
0.0002 in scientific notation
Westkost [7]

Answer:

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Step-by-step explanation:

We need the first number to be between 1 and less than 10

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We move the decimal 4 places to the right.  Since we move it to the right the exponent is negative and is the number of places we moved the decimal

2 * 10 ^-4

4 0
3 years ago
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