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2 years ago

Daniya can complete a job in 6 minutes, while it takes Abraham 9 minutes to

Mathematics

1 answer:

lora16 [44]2 years ago

3 0

Answer:

(eduacted guess) 7 minutes, 30 seconds

Step-by-step explanation:

May not be correct but what I did was find the average of 6 and 9. You add the 6 and the 9 (15), then divide it by 2.

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40 points, please help with all of them

Kitty [74]

Answer:

$\large\boxed{Q1.\ \text{2 times greater}}\\\\\boxed{Q2.\ J. 3}\\\\\boxed{Q3.\ B. -\dfrac{4}{5}}$

Step-by-step explanation:

The slope-intercept form of an equation of a line:

$y=mx+b$

m - slope

b - y-intercept

The formula of a slope:

$m=\dfrac{y_2-y_1}{x_2-x_1}$

Q1.

We have the equation of a line p in the standard form

$4x-3y=7$

Convert to the slope-intercept form:

$4x-3y=7$ subtract 3x from both sides

$-3y=-4x+7$ divide both sides by (-3)

$y=\dfrac{4}{3}x-\dfrac{7}{3}$

The slope $m_1=\dfrac{4}{3}$

From the table we have the points (4, 3) and (7, 5). Calculate the slope of line q:

$m_2=\dfrac{5-3}{7-4}=\dfrac{2}{3}$

Divide the slope of p by the slope of q:

$\dfrac{4}{3}:\dfrac{2}{3}=\dfrac{4}{3}\cdot\dfrac{3}{2}=2$

Q2.

Parallel line have the same slope. Therefore, if we have the equation of the line in the slope-intercept form, then we have the slope:

$y=3x+2\to m=3$

Q3.

Parallel line have the same slope.

Calculate the slope from given points (-11, 5) and (-6, 1):

$y=\dfrac{1-5}{-6-(-11)}=\dfrac{-4}{-6+11}=\dfrac{-4}{5}=-\dfrac{4}{5}$

6 0

3 years ago

What are the x - intercepts for the expression (x-4)(x+5)

Tpy6a [65]

Answer: It will be 4 or -5.

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Substract 11 3/4 - 9 8/15

Tju [1.3M]

Answer:

2 and 13/60

Step-by-step explanation:

First, we must create a common denominator in the fractions. For the given denominators, it would be 60, so 3/4 would be 45/60 and 8/15 would be 32/60. From here, we can just subtract and get 2 and 13/60.

Hope this helps!

3 0

3 years ago

Use a number line to arrange these numbers in order from least to greatest: 2, 19, -11, 6, -5

SSSSS [86.1K]

the first one is -11,-5,2,6,19

5 0

3 years ago

Please help thank you very much

Tom [10]

Answer:

$4x^{2} -6x$

Step-by-step explanation:

3 0

3 years ago