2 years ago

Help Me Please I need to do this for school

Mathematics

2 answers:

NNADVOKAT [17]2 years ago

8 0

Answer:

3 hours

I hope its right

hodyreva [135]2 years ago

4 0

Answer:

He worked for 3 hours.

Step-by-step explanation:

you can solve this by muiltipling the amount of hours by the kilograms done in an hour.

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marcia is typing her report for history class. She can type 4 pages in 45 minutes. At that rate, how many pages does she type pe

KATRIN_1 [288]

Answer:

5.34 pages/h

Step-by-step explanation:

4/45 = p/60

p ≈ 5.34

5 0

2 years ago

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D^2 - 4d = 3d Solve each equation. Factor and use the zero product property to solve. Show all work algebraically.

AveGali [126]

D^2 - 4d = 3d

d^2 - 7d = 0

d(d - 7) = 0

d = 0 or d - 7 = 0

d = 0 or d = 7

8 0

3 years ago

Help!!! Find the center and radius of the circle with the equation (x-4)²+(y+6)²=16

WITCHER [35]

Answer:

Center: $(4,-6)$

Radius: $4$

Step-by-step explanation:

It is necessary to remember that the Equation of the circle in Center-radius form, is:

$(x -h)^2 + (y-k)^2 = r^2$

Where the center of the circle is at the point (h, k) and the radius is "r".

Then, given the following equation of the circle:

$(x-4)^2+(y+6)^2=16$

We can notice that it is written in Center-radius form. Then we can identify that:

$h=4\\k=-6$

Therefore the center is:

$(4,-6)$

And the radius is:

$r^2=16\\\\r=\sqrt{16}\\\\r=4$

5 0

2 years ago

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Need some help with this please

amm1812

Answer: The answer is that he cleaned one room

Step-by-step explanation:

Because he charged in total 77 dollars and he charged 77 dollars per room, so 77*1=77=c

6 0

2 years ago

Solve for x in terms of a,b, and c: ax - 3b =c. . 1: a(c+3b). 2: a (c-3b). 3: c-3/a. 4: c+3b/a

trapecia [35]

We have to solve x in terms of a, b and c:
a x - 3 b = c
a x - 3 b + 3 b = c + 3 b
a x = c + 3 b
x = ( c + 3 b ) : a
Answer:
4 ) ( c + 3 b ) / a

8 0

2 years ago