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Neporo4naja [7]
3 years ago
10

3. Mary bought a pair of speakers for $400. The following year, her friend bought the same speakers for $310.

Mathematics
1 answer:
anyanavicka [17]3 years ago
7 0

Answer:

c

Step-by-step explanation:

take 400 multiply by 77.5% = 310

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Solve the equation. 10.35+2.3h=-9.2
Readme [11.4K]

Answer:

h = -8.5

Step-by-step explanation:

10.35+2.3h=-9.2

Subtract 10.35 from each side

10.35-10.35+2.3h=-9.2-10.35

2.3 h =-19.55

Divide each side by 2.3

2.3h/ 2.3 = -19.55/2.3

h =-8.5

8 0
3 years ago
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33 pounds of dog food for $45 how much is it per pound
Whitepunk [10]

Answer:

1 pound = .73 dollars rounded.

Step-by-step explanation:

This is like a rate question. Speed is in miles / hour only the units for this question is pound / dollar.

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7 0
2 years ago
George and carmen went on a bicycle trip. they took a bus to their starting piont, and then biked the rest. they traveled 275 ki
rodikova [14]
We need to do a system of equations here.

x + y = 275 (if you travel <em>x</em> km by bike and <em>y </em>km by bus, then you travel 275 km as given in the problem)
y = x + 55 (the problem stated that they were bussed (y) the amount they biked plus 55 more km (x + 55))

The second equation is already solved for y. So, we can plug it in to the first equation.

x + (x + 55) = 275
2x + 55 = 275 [combine x terms]
2x = 220 [subtract 55 from both sides]
x = 110 [divide by 2 to isolate x and solve for it]

Now we know that x is 110, the distance they traveled by bike.
And that's what we needed to answer the problem!
5 0
4 years ago
How many numbers are divisible by 10 from 5 to 200?
Olegator [25]
From 5 to 100 is 10 (10,20,30,40,50,60,70,80,90,100)
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20 numbers
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3 years ago
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Answer:

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Step-by-step explanation:

1.2 = 1 + 0.2 = 1 + 2/10 = 1 + 1/5 = 5/5 + 1/5 = 6/5

5 0
2 years ago
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