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zloy xaker [14]
3 years ago
7

What is the difference 1/8-3/10. A. -7/40 B.-3/40 C. 7/40 D. 17/40

Mathematics
1 answer:
mrs_skeptik [129]3 years ago
6 0
The answer is A. -7/40.

1. Make sure the (the denominators) are the same
2. Subtract the  (the numerators). Put the answer over the same denominator.
<span> 3. Simplify the fraction (if needed)
</span>
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Please answer really quick
dimaraw [331]

Answer:

A, 94

Step-by-step explanation:

4. A since that is the tallest of the bars

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6 0
2 years ago
The first term of an AP is -7 and the ratio of the eight term to the third term is 7:1 calculate the common difference
alukav5142 [94]

Answer:

the common difference is 6.

Step-by-step explanation:

Given;

first term of an AP, a = -7

let the common difference = d

The third term is written as;

T₃ = a + 2d

The eight term is written as;

T₈ = a + 7d

The ratio of the eight term to third term = 7:1

\frac{T_8}{T_3} = \frac{7}{1} = \frac{a+ 7d}{a + 2d} \\\\7 =  \frac{a+ 7d}{a + 2d}\\\\Recall, a = -7\\\\7 =   \frac{-7+ 7d}{-7 + 2d}\\\\7(-7 + 2d) = -7+ 7d\\\\-49 + 14d = -7 + 7d\\\\14d -7d = -7 + 49\\\\7d = 42\\\\d = \frac{42}{7} \\\\d = 6

Therefore, the common difference is 6.

4 0
3 years ago
To which real number sets does the number 13 belong?
Crazy boy [7]
13 is a whole number, integer, natural number and rational number. Rational number because it can be written as a fraction like 13/1. It is a whole number because it doesn't have any decimals. It is an integer because an integer is a positive or negative whole number and it is a natural number because a natural number is any positive number greater than 0.
3 0
3 years ago
Pls help!!!!!!!!!!!!!!!!
MakcuM [25]

Answer:

6562331215

Step-by-step explanation:

3 0
3 years ago
A submarine sits at -300 meters in relation to sea level. Then it descends 115 meters. What is its new position in
Leokris [45]

Answer:

In this question ;

key word is <em><u>descends</u></em> which means <em><u>going down</u></em>

now the position is -300 which means it's under water and it descends 115 m that means now it's even more under water

position now is -300 -115 = <u>-415m</u>

<u> </u>

3 0
3 years ago
Read 2 more answers
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