3 years ago

If x < 5, then which of the following must be true? - x < 5 - x > -5 - x > 5 - x < -5

Mathematics

1 answer:

Nat2105 [25]3 years ago

4 0

Answer:

-x > -5

Step-by-step explanation:

Let's start with a positive number less than 5.

4<5

likewise when applied to -x> -5

-4>-5

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If m varies directly as p, and m=5 when p=7, what is the constant of variation?

Tanzania [10]

For direct relations, we can write:
m = kp; k is the constant of proportionality.
5 = 7k
k = 5/7
The constant of variation is 5/7.

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3 years ago

Read 2 more answers

Grains of sand are very small, there being about 3000 grains in one cubic centimeter (cm3) of sand. A cm3 is a small cube measur

Anastasy [175]

Answer:

The value is $x = 3.000 * 10^9 \ grains$

Step-by-step explanation:

From the question we are told that

$1m^3 = 10^6 cm^3$

And that

$3000 \ grains \ of \ sand \ is \ in \ 1cm^3$

So the number of sand grain that is in $1m^3$ is mathematically evaluated as

$x = 3000 * 10^6 \ grains$

=> $x = 3.000 * 10^9 \ grains$

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3 years ago

What is the equation of the line that has a slope of 3 and goes through point (4, 7)?

astra-53 [7]

<span>The slope of the line is equal to (y - 7) / (x - 4)
Then we can set up this equation:
(y - 7) / (x - 4) = 3
y - 7 = 3 * (x - 4)
y - 7 = 3x - 12
y = 3x - 5
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3 0

3 years ago

2) COMPOUND INTEREST If $22,000 is invested at an annual

Serhud [2]

Answer:

0,266666666667

Step-by-step explanation:

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2 years ago

write an expression for the new balance using as few terms as possible. A checking account has a balance of -$126.89. A customer

Nutka1998 [239]

Answer:

New balance = -151.89 + 4.5x

(where x is the value of the smaller deposit)

Step-by-step explanation:

The inicial balance was -126.89.

Then, it were made two deposits, one with the value of x, and one that is 3 1/2 times the other, that is, 3.5x.

Then, the customer made a withdraw of $25.

So, The new balance can be calculated as:

New balance = inicial balance + x + 3.5x - 25

New balance = -126.89 + 4.5x - 25

New balance = -151.89 + 4.5x

8 0

3 years ago