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2 years ago

-1/5-(-3/8)=? I need a step by step to solve this equation

Mathematics

1 answer:

irakobra [83]2 years ago

3 0

Answer:

7/40

Step-by-step explanation:

Simplify the following:

-1/5 + 3/8

Hint: | Put the fractions in -1/5 + 3/8 over a common denominator.

Put -1/5 + 3/8 over the common denominator 40. -1/5 + 3/8 = (-8)/40 + (5×3)/40:

(-8)/40 + (5×3)/40

Hint: | Multiply 5 and 3 together.

5×3 = 15:

(-8)/40 + 15/40

Hint: | Subtract the fractions over a common denominator to a single fraction.

-8/40 + 15/40 = (-8 + 15)/40:

(-8 + 15)/40

Hint: | Subtract 8 from 15.

-8 + 15 = 7:

Answer: 7/40

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egoroff_w [7]

$4tan \theta = 12 - tan^{2} \theta$
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Let $x = tan \theta$
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2 years ago

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2 years ago

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3 years ago

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What is 302.135 rounded to the nearest tenth?<br> A. 300<br> B. 302.1<br> C. 302.14<br> D. 302.2

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3 years ago

List the single-digit divisors of 2100.<br> I really need help

liberstina [14]

Answer:

1, 2, 3, 4, 5, 6, 7

Step-by-step explanation:

<u>Prime factors of 2100 are:</u>

2100 = 2*2*3*5*5*7

<u>The single-digit divisors are:</u>

1, 2, 3, 2*2= 4, 5, 2*3= 6, 7

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<u>Another solution is you divide 2100 by all numbers 1 through 9 and list those divisible:</u>

2100/1 = 2100, yes
2100/2 = 1050, yes
2100/3 = 700, yes
2100/4 = 525, yes
2100/5 = 420, yes
2100/6 = 350, yes
2100/7 = 300, yes
2100/8 = 262.5, no
2100/9 = 233.33, no

So all the numbers from 1 to 7

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2 years ago