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notka56 [123]
3 years ago
5

If Hannah can complete 4 math problems every minute how many can she solve in 15 minutes

Mathematics
2 answers:
Anna71 [15]3 years ago
7 0

Step-by-step explanation:

1 min = 4 math problems

=> 15 min = 4 * 15 = 60 math problems

Therefore Hannah can solve 60 math problems.

kherson [118]3 years ago
3 0
Hannah can solve 60 math problems in 15 minutes
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Please help!!! Look at image. Excuse my answers I’m not sure if there right.
Orlov [11]
17-
Quotient: 6x+2
Remainder: 20/x^2+3 (20 over x to the power of 2 plus 3)

18-
Quotient: x^2+3 (x to the power of 2 plus 3)
Remainder: 6/4x^2+2 (6 over 4 x to the power of 2 plus 2)

7 0
2 years ago
The table shows a linear function.
faltersainse [42]

There's probably a mistake in the problem; as written the answer is none of the above.

We have slope from the first two points of (4-2)/(0-4) = -1/2 and a y intercept from the second point of 4 so

f(x) = (-1/2) x + 4

maybe that's the third choice; forgot the fraction bar.

3 0
3 years ago
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What is the unit price of a granola bar if 8 granola bars cost $4.16
ANEK [815]

Answer:

divide 8 by 4.16

Step-by-step explanation:

4 0
3 years ago
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Which decimal is equivalent to {26}{9}
blsea [12.9K]

Answer:

2.8888888888889

Step-by-step explanation:

I hope this helps

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3 years ago
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I don’t really understand this type of stuff so please help.
ohaa [14]

For 1 and 2, you plot both lines, and wherever they intersect is the solution to the system. Given the equation of a line, I think the easiest way to plot it is to find two points on the line, then draw a line through them. For example, if y=5x-1, then when x=0, you get y=-1; when x=1, you get y=4. So plot the points (0, -1) and (1, 4), then strike a line through.

1. Notice that dividing both sides of 2y=10x-2 by 2 returns y=5x-1, same as the first equation. So the system of equations reduces to one equation, which can have an infinite number of solutions. (This is because for any choice of x or y, you can always find a corresponding value for the other variable.)

2. See attached image. 3x-y=2 is given by the purple line.

For 3-6, you have several options. The two simplest methods of solving them are by substitution or elimination.

3. Like with (1), notice that dividing both sides of the first equation by 2 gives x+3y=9, so there will be an infinite number of solutions.

4. (by substitution) Since y=-7x+3, we can replace y in the second equation:

-7x+3+7x=10\implies3=10

but this is false, so there are no solutions to this system.

5. (by substitution) Since x=2y+2, in the first equation we have

-5(2y+2)+3y=-10y-10+3y=-7y-10=11\implies-7y=21\implies y=-3

Then back in the second equation we find

x=2(-3)+2=-6+2=-4

So (-4, -3) is the only solution here.

6. (by substitution) Notice that the left hand sides of both equations are the same, so we end up with 7 = 12, but this is false, so no solution exists.

5 0
3 years ago
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