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-BARSIC- [3]
3 years ago
11

Cindy averaged 88 on the first four tests of the year in her Algebra 2 class. If she scores a 95 on each of the remaining tests,

her average will be a 93. Determine how many tests are left in the year.
Mathematics
1 answer:
Dvinal [7]3 years ago
3 0
Let x represent the number of remaining tests this year.

[4(88) + x(95)]/(4 + x) = 93
352 + 95x = 372 + 93x
2x = 20
x = 10
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Solve using logs 5^(3x-6)=125
Hitman42 [59]
5 ^{3x-6} =125 \\ \\ 5 ^{3x-6} =5^3 \\ \\3x-6 =3 \ \ |+6 \\ \\3x=3+9 \\ \\3x=12 \ \ /:3 \\ \\x=\frac{12}{3} \\ \\x= 3
3 0
3 years ago
PLEASE HELPPPPP
umka21 [38]
The answer is B I believe
4 0
2 years ago
2 A garden hose supplies 36 gallons of water in 3 minutes. Use a table or eq
Vilka [71]

Answer  ↣ 12 gallons per minute

Step-by-step explanation ↣ Ok I'm gonna use ratios because I can't draw a graph here.

Ok so if the garden hose supplies 36 gallons of water in 3 minutes, then the ratio is 36:3 because every 3 minutes the garden hose "sprays" 36 gallons.

To simplify this ratio, you need find the amount of water the garden hose supplies in 1 minute.

Well to get from 3 to 1, you have to divide by 3.

Do the same thing to 36. 36/3 equals 12.

So the final ratio is 12:1

This is the unit rate. The unit rate is when one variable is 1 unit (most of the time it is speed).

You can multiply 1 by any number and multiply 12 by the same number.

Here are some ratios...

m=minutes

g=gallons

1m:12g

2m:24g

3m:36g

4m:48g

5m:60g

Hope this helped!

BTW why do I sound like this I'm not a aesthetic person-

8 0
2 years ago
performance determine the slope and the y-intercept given the following linear functions. 1.f(x)=3x-10​
Monica [59]

Answer:

Slope: 3

Y-Intercept: -10

Step-by-step explanation:

This equation is in slope-intercept form, it is written as y = mx + b where m is the slope and b is the y-intercept. This means 3 is the slope and -10 is the y-intercept.

3 0
3 years ago
Marianna went running and had 16 of a bottle of water left when she stopped to rest. She went to a water fountain and filled it
vovikov84 [41]

Answer:

7/100

Step-by-step explanation:

16/100 to 23/100

23-16 = 7

7/100 added

4 0
3 years ago
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