All categories

3 years ago

Five less than four times a number is nine more than twice a number

Mathematics

2 answers:

Leokris [45]3 years ago

7 0

5-4a=9+2a
Hope this help

7nadin3 [17]3 years ago

7 0

Answer:

Step-by-step explanation:

We do not know the number, so we will let a variable take its place. I will be using n to represent this unknown number.

n=mystery number

Now that we have a variable, we can perform operations on it. Five less than four times a number is multiplying the number by 4 and then subtracting it by 5.

4n-5

Assuming that the second part is equal to the first part, nine more than twice a number is multiplying the number by 2 and then adding 9. We can set this equal to our previous expression.

4n-5=2n+9

2n-5=9

2n=14

n=7

Solving this equation is all we have to do to find the answer.

You might be interested in

Addison worked 11 more hours this week than last week. In total, she worked 65 hours this week and last week. Using the equation

Bingel [31]

Answer:

Step-by-step explanation:

2h+11=65

2h= 65-11

2h=54

then divide both side by two to find h

5 0

3 years ago

Write each decimal as a fraction .07 .051 .473 .27 .5.37 .16.49

Colt1911 [192]

Answer:

7/10

51/100

473/1000

27/100

537/1000

1649/10000

Step-by-step explanation:

im curious about what the dots are in .16.49 and .5.37, why are there two dots?

3 0

2 years ago

Which doubles fact helps you solve 8+7=15? Write the number sentence.

12345 [234]

8 + 8 = 16
16 - 1 = 15

or

7 + 7 = 14
14+1 = 15

7 0

3 years ago

Read 2 more answers

What are the coordinates of the midpoint of ab?

mars1129 [50]

Your answer will be A because you have to get the sum of 4 and 8 and then divide by 2. Which is 6 for the x coordinate. The you need to take the sum of -5 and -1 and then divide by 2. Which is -3 for the y coordinate. So the answer is (6,-3).

7 0

3 years ago

Read 2 more answers

Tyler baked 702 cookies he sold them in boxes of 18 after selling all of the boxes of cookies for the same amount of each he ear

jenyasd209 [6]

Keywords:

Cookies, boxes, sale, profit, unit cost

For this case we have to bake an amount of 702 cookies, which were distributed in boxes of 18 for sale. Selling each box at the same price earned a profit of 136.50 dollars, you want to know the unit cost of each box of cookies.

Let $"x"$ be the number of boxes of cookies:

So, to know the number of boxes we divide 702 cookies among 18:

$x = \frac {702} {18}\\x = 39$

So, we have Tyler sold 39 boxes of cookies

Now, let $"y"$ be the cost of each box of cookies, to know the unit cost or sale price of the cookie boxes, we divided 136.50 dollars among 39 boxes of cookies, then:

$y = \frac {136.50} {39}\\y = 3.5$

Thus, the cost of each box was 3.5 dollars.

Answer:

The cost of a box is 3.5 dollars

5 0

3 years ago

Read 2 more answers