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3 years ago

What is the sum of twice a number and 13 is 75

Mathematics

1 answer:

photoshop1234 [79]3 years ago

7 0

Equation- 2n+13=75
n is 31
Hope this helped.

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What does the line 5x + 4y = -6 look like

RoseWind [281]

Answer:

See attached photo for graph

Step-by-step explanation:

Solve the equation for y... (that means get y by itself)

4y = -5x - 6 (subtract 5x from both sides)

y = -(5/4)x - 6/4 (divide both sides by 4)

y = -(5/4)x - 3/2 (simplify)

Now you can graph using slope-intercept method. The y-intercept is -3/2, and the slope is -5/4

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3 years ago

Which set is a function?

Sonja [21]

B, short explanation remember the sets are set up like (x,y) in a set there should be no matching x points so if it matches it's not a function :)

long explanation: these are (x,y) sets {(0,3), (3,0), (0,4), (4,0)} the first choice shows that there are two X solutions if they are equal to 0 (0,3) (0,4) so this cant be a function.

second choice {(0,2), (2,0), (4,6), (6,4)} does not have two X solutions so this is a function
third choice{(2,6), (3,6), (4,6), (2,0)} has two X solutions if x is equal to 2
and the last choice {(6,2), (2,0), (4,6), (6,4)} has two X solutions if x is equal to 6
hope i helped! if i did please give me brainlest :)

8 0

3 years ago

The box plot shows the highest jump for each competitor in the Women's High Jump Final at the 2008 Olympics in Beijing, China. F

Stolb23 [73]

Answer:

0.07

Step-by-step explanation:

to find the IQR you do Q3-Q1

2.00-1.93

3 0

3 years ago

Read 2 more answers

Solve the equatuon x/2-(2/(x+1))=1 x=?

Snezhnost [94]

$\frac{x}{2}-\frac{2}{x+1}=1$

We have 2 denominators that we need to get rid of. Whenever there are the denominators, all we have to do is multiply all whole equation with the denominators.

Our denominators are both 2 and x+1. Therefore, we multiply the whole equation by 2(x+1)

$\frac{x}{2}[2(x+1)]-\frac{2}{x+1}[2(x+1)] = 1[2(x+1)]$

Then shorten the fractions.

$\frac{x}{2}[2(x+1)]-\frac{2}{x+1}[2(x+1)] = 1[2(x+1)]\\x(x+1)-2(2)=1(2x+2)$

Distribute in all.

$x^2+x-4=2x+2$

We should get like this. Because the polynomial is 2-degree, I'd suggest you to move all terms to one place. Therefore, moving 2x+2 to another side and subtract.

$x^2+x-4-2x-2=0\\x^2-x-6=0\\$

We are almost there. All we have to do is, solving for x by factoring. (Although there are more than just factoring but factoring this polynomial is faster.)

$(x-3)(x+2)=0\\x=3,-2$

Thus, the answer is x = 3, -2

7 0

3 years ago

Write the digit on the blank which occupies the place value

nasty-shy [4]

Answer:

guganitckihkgucifufu

6 0

3 years ago