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rusak2 [61]
4 years ago
10

The sum of a number and five is twenty. How do I write this?

Mathematics
2 answers:
Alexandra [31]4 years ago
8 0
The "sum" means addition. So translated into an equation, your answer would be

n+5=20
hjlf4 years ago
3 0
You can assume the number as x.

x + 5 = 20
You might be interested in
There are five boys to every three girls in an introductory chinese course. if there are 384 students enrolled in the course, ho
alex41 [277]

Answer:

There are 240 boys.

Step-by-step explanation:

There are five boys to every three girls in an introductory Chinese course. Given that there are 384 students enrolled in total, we want to determine the amount of students which are boys.

Let <em>b</em> represent the number of boys and <em>g</em> girls.

Since the ratio is 5:3, we can write that:

\displaystyle \frac{5}{3} = \frac{b}{g}

And since the total number of students is 384:

b + g = 384

From the first equation, cross-multiply:

5g = 3b

Solve for <em>g: </em>

<em />\displaystyle g = \frac{3}{5} b<em />

Substitute:

\displaystyle b + \left (\frac{3}{5} b\right) = 384

Simplify:

\displaystyle \frac{8}{5} b = 384

Solve for <em>b: </em>

<em />\displaystyle b = \frac{5}{8}\left(384\right) = 240<em />

<em />

In conclusion, 240 of the total students are boys.

4 0
3 years ago
ACTIVITY 2 Continued
nadezda [96]

Answer:

.2

Step-by-step explanation:

3:15 to 4:30 is 75 minutes

she had to assemble 15 since there were already 67 made

divide 15/75

.2 per minute

7 0
3 years ago
Forty-two percent of the African-American pilots who served in WWII came to the awards ceremony. One thousand African-American p
Inessa05 [86]
410, because any percentage of 100 is itself
6 0
3 years ago
-7 + y = -19<br> -2x + 3y = -19
Zinaida [17]
If you want to solve the system of equations it will be:

Step 1: solve the equation for y

y= -19+7 → y= -12

Step 2: substitute y into the equation

-2x+3x(-12)=-19

Step 3: solve the equation for x

x= -17/2

Step 5: the possible solution is the order pair (x,y)

Answer: (-17/2 , -12)
3 0
3 years ago
Read 2 more answers
-1+(4+4x)=83 what does x equal
horrorfan [7]
Your answer will be x=20
7 0
3 years ago
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