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Alekssandra [29.7K]
3 years ago
13

SOMEONE PLEASE HELP ME QUICK WILL GIVE BRAINLIEST

Mathematics
1 answer:
Wittaler [7]3 years ago
4 0

Answer:

IT would be B I believe

Step-by-step explanation:

f(x) = 3x + 391

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Four times a number, x, plus five times a number, y, equals 79. Ten times x minus 5 times y equals 5. Find the numbers by settin
irakobra [83]
The correct answer is X=6 & Y=11
6 0
3 years ago
2x + 3 = 5x - 2
Daniel [21]

Answer:

x3r9

Step-by-step explanation:

5 0
3 years ago
2m/(2m 3)-(2m)/(2m-3)=1how many extraneous solutions does the equation have?
Slav-nsk [51]
\frac{2m}{2m+3} - \frac{2m}{2m-3} =1 \\  \frac{2m(2m-3)-2m(2m+3)}{4m^2-9} =1 \\  \frac{4m^2-6m-4m^2-6m}{4m^2-9} =1 \\  \frac{-12m}{4m^2-9} =1 \\ -12m=4m^2-9 \\ 4m^2+12m-9=0 \\ m=0.6213 \ or \ m=-3.6213
For m = 0.6213, \frac{2(0.6213)}{2(0.6213)+3} - \frac{2(0.6213)}{2(0.6213)-3} \\  \frac{1.2426}{4.2426} - \frac{1.2426}{-1.7574} =0.2929+0.7071=1
For m = -3.6213, \frac{2(-3.6213)}{2(-3.6213)+3} - \frac{2(-3.6213)}{2(-3.6213)-3} \\ \frac{-7.2426}{-4.2426} - \frac{-7.2426}{-10.2426} =1.7071-0.7071=1
Therefore, the equation has no extraneous solution.
4 0
3 years ago
Five sixths divided by three
chubhunter [2.5K]

Answer:

3 and 3/5

Step-by-step explanation:

5/6 divided by 3/1 is the same as 6/5 times 3/1 so,

18/5=3and3/5 as the answer

8 0
3 years ago
Read 2 more answers
What is the ratio of the two values and what new value do they produce?
QveST [7]

The required ratio is give by $40/m, 4 miles/min, 30 mile/liter. .

Let, just assume a vehicle is given an economy of $280 of 7m.

<h3>
What is the Ratio?</h3>

The ratio can be defined as the comparison of the fraction of one quantity towards others. E.g.- water in milk.

Now,
The ratio can be given as for economy = 280/7
=  $40/m

here for new values,
suppose the vehicle travel for 40miles in 10 mins
ratio
= 40/10= 4 miles/min
and vehicle consumes 2 liter fuel on 60 miles of distance ratio can be given as
ratio = 60/2 = 30 mile/liter.

Thus the required ratios can be given as $40/m, 4 miles/min, 30 mile/liter.

Learn more about Ratio here:
brainly.com/question/13419413

#SPJ1

6 0
2 years ago
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