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Fynjy0 [20]
3 years ago
6

Matty is always on the playground his favorite coins to collect or nickels and dimes. He has found $6.20, or $72 total nickels a

nd dimes. Write and algebraically solve a system of equations to figure out how many nickels he has and how many dimes he has.
Mathematics
1 answer:
nadya68 [22]3 years ago
8 0

Answer:

Matty is a bit of a weirdo you know what i mean

Step-by-step explanation:

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A skateboarder leaves a 12-foot tall ramp with an initial vertical velocity of 8 feet per sen
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To answer this, we substitute 12 ft to the f(h) in the given equation,   
f(h) = -8t² + 8t + 12 = 12

Subtracting 12 from both sides of the equation will give us an answer of,

-8t² + 8t = 0

Then, we transpose 8 to the other side and divide the equation by -8 and t, we get an answer of t = 1 second. 

7 0
2 years ago
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Each week, you drive 150 miles. Your car gets 25 miles to the gallon, and gas prices are $3 per gallon. How much gas money will
blondinia [14]
150 divided by 25 equals 6. 6 times 3 equals 18. This means that you will spend $18 on gas each week. 
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3 years ago
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I've been stuck on this for about 2 hours but it still doesn't make any sense to me, please helpppppppppp
Mariana [72]
I really hope this helps. I’m sure the answer is c:)
5 0
3 years ago
Can someone do this fast ? I need it for tomorrow
gregori [183]

Answer:

Step-by-step explanation:

hg(x) means you multiply h(x) times g(x) and then we will set it equal to 3x^2+x-1.

hg(x) = x^2(x+2) which simplifies to

x^3+2x^2. Now set that equal to 3x^2+x-1:

x^3+2x^2=3x^2+x-1 and get everything on the same side and factor:

x^3-x^2-x+1=0. Factor by grouping:

(x^3-x^2)-(x+1)=0 and factor out what's common in each set of ( ):

x^2(x-1)-1(x-1)=0 which factors out to

(x^2-1)(x-1)=0. But x^2-1 factors somoe to:

(x + 1)(x - 1)(x - 1) = 0 So the solutions for this are

x = -1, 1

7 0
2 years ago
What is the slope of the line that passes through the points (1, 1) and (4, 4)?
gizmo_the_mogwai [7]

Answer:

The answer is 1

Step-by-step explanation:

Formula for finding the slope: \frac{y2-y1}{x2-x1}

Take y2 and y1 from (4,<u>4</u>) (1,<u>1</u>)

Take x2 and x1 from (<u>4</u>,4) (<u>1</u>,1)

\frac{y2-y1}{x2-x1}  = \frac{4-1}{4-1} = \frac{3}{3} = 1

This is how the answer is 1

Hope it helps :)

8 0
2 years ago
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