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2 years ago

Help please I’ve been stuck here for hours on this problem would really appreciate it so much. Can’t figure out those two blanks

Mathematics

1 answer:

elena-s [515]2 years ago

7 0

The answers are 2.4 hours and 20 hours

The equation you have is correct. To solve the next ones you use that equation and plug in the number of hours given. So for 31 hours of babysitting you’d do this:
12(32)+15c=420
384+15c=420
15c=36
c=2.4

Same thing for 10 hours babysitting
12(10)+15c=420
120+15c=420
15c=300
c=20

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Find the domain and range of each function. 1.g(x)=x^3

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Domain: (-∞,∞) or All real numbers

Range: (-∞,∞) or All real numbers

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1 year ago

17. Find the length of the hypotenuse of an isosceles right triangle whose legs measure

defon

Answer:

4.950 m

Step-by-step explanation:

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2 years ago

write an equation in slope intercept form for the line that passes through (4, -4) and is parallel to 3x+4x=2y-9

photoshop1234 [79]

Answer:

$\large\boxed{y=\dfrac{7}{2}x-18}$

Step-by-step explanation:

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

$y=mx+b$

Convert the equation of a line 3x + 4x = 2y - 9 to the slope-intercept form:

$3x+4x=2y-9$

$7x=2y-9$ add 9 to both sides

$7x+9=2y$ divide both sides by 2

$\dfrac{7}{2}x+\dfrac{9}{2}=y\to y=\dfrac{7}{2}x+\dfrac{9}{2}$

Parallel lines have the same slope. Therefore we have the equation:

$y=\dfrac{7}{2}x+b$

Put the coordinates of the point (4, -4) to the equation:

$-4=\dfrac{7}{2}(4)+b$

$-4=7(2)+b$

$-4=14+b$ subtract 14 from both sides

$-18=b\to b=-18$

Finally we have the equation:

$y=\dfrac{7}{2}x-18$

8 0

3 years ago

2t + t =68 a. find t b. fint 2t

balandron [24]

Answer:

t = 22 $\frac{2}{3}$

2t = 45 $\frac{1}{3}$

Step-by-step explanation:

3t = 68

t = 68/3

4 0

2 years ago

PLEASE HELP THIS IS MY LAST QUSTION OF THE DAY!!! :) thanks in advanced

notsponge [240]

So using standard form you convert the equation to 5x - 2y = -10 then use slope m of a line of the form Ax + By = C equals negative a over b. It would be a = 5 b = -2 m = -5/-2 m = 5/2. Have a good day the answer is 5/2

3 0

2 years ago