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Keith_Richards [23]
3 years ago
12

I need help with this math question 3f+9<21

Mathematics
1 answer:
liubo4ka [24]3 years ago
8 0
I am assuming you want to find the simplest form of the inequality.

1. 3f + 9 \ \textless \  21
2. 3f < 12
3. f < 4

1. Start
2. Subtract 9 from each side
3. Divide both sides by 3
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Sasha bought three pens malachi bought one how much more money did sasha spend then malachi
Nuetrik [128]
If the cost of one pen is x, the Sasha spend 3x, and Malachi spent 1x.



Sahsa spend 3x - 1x more than Malachi. So, Sasha spent 2x more than Malchi did for a pen.



Just plug in how much a pen costs into x to fi d the numerical answer. :)
4 0
3 years ago
3x + 3y =15 and x = -3y -1
saul85 [17]

Answer:

  (x, y) = (8, -3)

Step-by-step explanation:

You can substitute for x in the first equation:

  3(-3y -1) +3y = 15

  -6y = 18 . . . . . add 3 and simplify

  y = -3 . . . . . . . divide by -6

  x = -3(-3) -1 = 8 . . . . find x using the second equation

The solution to this system of equations is (x, y) = (8, -3).

4 0
3 years ago
A recipe use 5 cups of flour for every 2 cups of sugar .a.how much sugar is used for 1 cup of flour? b.how much flour is used fo
zheka24 [161]

Answer:

1 cup of sugar per 2.5 cups of flour.

2.5 cups of flower per 1 cup of sugar.

17.5 cups of flower is used with 7 cups of sugar.

1.6 cups of sugar is used with 6 cups of flour.

Step-by-step explanation:

5 0
3 years ago
Study island Jack Russell high school 96 students plan on going to end in State College and 58 students plan on going to an out
Daniel [21]

Answer:

48:29

Step-by-step explanation:

So lets find the ratio without simplest form: the ratio is 96:58

When writing the ratio we write the one mention first

Now lets write it in simplest form practically reducing it to its lowest term

\frac{96}{58}( we first write it as a fraction)

\frac{96}{58}÷\frac{2}{2}=48:29

So the answer is 48:29

HOPE IT HELPED

3 0
3 years ago
Eugene wants to buy jeans at a store that is giving $10 off everything. The tag on the
lorasvet [3.4K]

Answer: a= $24.99

              b= $39.98

I hope this helps

Step-by-step explanation:

6 0
2 years ago
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