All categories

2 years ago

Solve 5a - 4a = -9 - 8a

Mathematics

2 answers:

Gnoma [55]2 years ago

6 0

The answer you should get is a=-1

Elena-2011 [213]2 years ago

3 0

5a - 4a = -9 - 8a
a = -9 - 8a
9a = -9
a = -1

You might be interested in

Positive numbers are to the number line_______ of the zero on the number line.

yKpoI14uk [10]

Positive number are on the right of the zero on the number line.

6 0

3 years ago

mason wants to play with maliyah's doll house but first he needs to stop at the clubhouse. if all three stops are in the shape o

svlad2 [7]

To check if distances can be a triangle add the smaller two distances together. If the sum is larger (not equal to) than the longest distance then it is a possible side. For example, 2,2,4 or 1,2,5cannot be a triangle, 2,3, 4 can be a triangle because 2+3 is greater than 4.

7 0

3 years ago

Read 2 more answers

Rena spent 6 days reading her book completing the same fraction of the book each day if she had a total of 8/9 of her book after

Artyom0805 [142]

Answer:

The fraction of the book that Rena read every day is $\frac{4}{27}$

Step-by-step explanation:

Rena spent 6 days reading her book completing the same fraction of the book every day and you want to know the fraction of the book she read each day. Knowing that Rena had a total of 8/9 of her book read after 6 days, then you simply divide the total amount of the book read during those days by 6, the number of days:

$\frac{8}{9}$ ÷6

To divide a fraction by a whole number, you must convert the whole number into a fraction, finding the reciprocal of that fraction, and multiply it by the first fraction. That is, you must find the reciprocal of the number that is after the division symbol; and then you multiply the first number (the one before the division symbol) by the reciprocal of the second number (the one after the division symbol). Remember that to find the reciprocal of a number, you simply have to change the numerator and denominator of the number.

Since 6 can be considered to be a fraction equal to $\frac{6}{1}$ , by inverting the number, then you get $\frac{1}{6}$

Then:

$\frac{8}{9}$ ÷6= $\frac{8}{9} *\frac{1}{6}$

Now you multiply the numerators and denominators of the fraction to get the new numerator and denominator of the final solution.

$\frac{8}{9}$ ÷6= $\frac{8}{9} *\frac{1}{6}=\frac{8*1}{9*6} =\frac{8}{54}$

Finally, simplifying the fraction:

$\frac{8}{9}$ ÷6= $\frac{8}{9} *\frac{1}{6}=\frac{8*1}{9*6} =\frac{8}{54}=\frac{4}{27}$

So:

$\frac{8}{9}$ ÷6= $\frac{4}{27}$

The fraction of the book that Rena read every day is $\frac{4}{27}$

3 0

3 years ago

HELP ME PLS‍♀️‼️ What rational number subset(s) do 2, 5, 7, 9, 13 belong to??

bonufazy [111]

Answer:

Natural numbers , whole numbers, Integers

4 0

2 years ago

Read 2 more answers

If two measurements are very close to each other, then they are ____..

erik [133]

The correct answer is:

B) precise

Explanation:

Precision can be broken down into two pieces:

Repeatability - The variation observed when the same person measures the same thing repeatedly with the same device.

Reproducibility: The variation observed when different people measure the same thing using the same device.

If two measurements are very close to each other, this gives repeatability. If the measurements were made by different people, this gives reproducibility.

Accuracy, however, describes the difference between the measurement and the thing's actual value. This would not involve getting the same result repeatedly; it would be getting the correct value.

6 0

2 years ago

Read 2 more answers