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3 years ago

5

Who is good at the maths/ algebra??

1 answer:

Goryan [66]3 years ago

3 0

8 < 2b
8/2 < b
4 < b

2b + 15 < 5
2b < 5 - 15
2b < -10
b < -10/2
b < -5

answer is : b > 4 or b < -5

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300 is 5% of what number

Ber [7]

At first I learned to do these equations as Part÷Whole=Percent÷100
Part(The portion)=300
Whole=X
Percent=5
So now you have
300÷X=5÷100
Set this up as a fraction and cross multiply.
Now you have 30,000=5x
Now divide both sides by 5 and you get x=6,000
6,000 is your answer.

8 0

3 years ago

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In the mystery number problem below, Rosa identified the missing number as 4. Is she correct? How can you check her answer?

Savatey [412]

Answer:

Step-by-step explanation:

she is wrong the right answer is 15.98

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3 years ago

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Oduvanchick [21]

But where....is the histogram?

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3 years ago

Solve for x:<br><br> mx + nx = p

algol13

Thanks for the question!

mx + nx = p
Group them with x as the GCF
x(m +n) = p
Divide both sides by m+n
x = p/m+n

Hope this helps!

5 0

4 years ago

Which equations and/or functions represent the graphed line? Select three options.

9966 [12]

Answer:

Point slope form : $y-3=\frac{1}{2}(x-2)$

Slope intercept form: $y=\frac{1}{2}(x)+2$

Standard form : $-x+2y=4$

Step-by-step explanation:

From the given graph it is clear that the line is passing through the points, (-4, 0), (-2, 1), (0, 2), and (2, 3).

If a line passes through two points $(x_1,y_1)$ and $(x_2,y_2)$ , then the equation of line is

$y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)$

Let as consider any two points of the line: (2, 3) and (0, 2).

The equation of line is

$y-3=\frac{2-3}{0-2}(x-2)$

$y-3=\frac{1}{2}(x-2)$

The point slope form of the line is $y-3=\frac{1}{2}(x-2)$ .

$y-3=\frac{1}{2}(x)-\frac{1}{2}(2)$

$y-3=\frac{1}{2}(x)-1$

Add 3 on both sides.

$y=\frac{1}{2}(x)-1+3$

$y=\frac{1}{2}(x)+2$

Therefore the slope intercept form of the line is $y=\frac{1}{2}(x)+2$ .

Multiply both sides by 2.

$2y=x+4$

$-x+2y=4$

Therefore, the standard form of the line is $-x+2y=4$ .

5 0

4 years ago

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