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Burka [1]
2 years ago
12

Im confused on this one also

Mathematics
1 answer:
dusya [7]2 years ago
5 0

Answer:

Reason 3: Pythagorean theorem

Reason 5: Pythagorean theorem

Reason 6: Definition of cosine

Reason 8: Substitution property of equality

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3^x+1 +3^x-1=270<br>Solve for x​
BaLLatris [955]

Answer:

x=4.464974

Step-by-step explanation:

5 0
3 years ago
I need help yall. Brainliest for the first person who actually shows their work.<br> 30 pts btw
Oliga [24]

Answer:

1. 24.36

2. Do the same thing (follow the steps in the picture)

Step-by-step explanation:

7 0
3 years ago
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The cost of renting a bus for a field trip was split evenly among 20 students. At the last minute, 10 more students joined the t
dexar [7]

By solving a linear equation, we will see that the total cost for renting the bus is $90.

<h3>What was the total cost of renting the bus, in dollars?</h3>

Let's say that the total cost is C.

When there are 20 students, each student should pay:

p = C/20

When the other 10 students are added (for a total of 30) each student pays:

p' = C/30.

We know that the cost for each of the original 20 students decreased by $1.50, so:

p' = p - $1.50

Then we have 3 equations to work with:

p = C/20

p' = C/30.

p' = p - $1.50

Now we can replace the first and second equations into the third one:

C/30 = C/20 - $1.50

Now we can solve this linear equation for C:

C/20 - C/30 = $1.50

C*( 1/20 - 1/30) = $1.50

C*(30/600 - 20/600) = $1.50

C*(10/600) = $1.50

C*(1/60) = $1.50

C = 60*$1.50 = $90

So the total cost for renting the bus is $90.

If you want to learn more about linear equations:

brainly.com/question/1884491

#SPJ1

4 0
1 year ago
Find the solution to the system of equations.
PolarNik [594]
B. I’m 75 percent sure
7 0
3 years ago
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Justin spends $21.75 on 6 rides and three sodas for his friends. Jerry spends $39.50 on 10 rides and 6 sodas for his friends. Ho
SIZIF [17.4K]
R = rides
S = sodas

6R + 3S = $21.75 —> -12R - 6S = -43.5
10R + 6S = $39.50–>10R + 6S = 39.5

Multiplying Justin’s whole equation by -2 will bring out the 6S’, so we can focus on the cost of one ride.

-2R = -4
Divide both sides by -2
So for one ride, it would cost $2.

To find the cost for one soda, we plug in the cost for a ride.

6(2) + 3S = $21.75
12 + 3S = $21.75
3S = $9.75
So for one soda, it would cost $3.25.
8 0
3 years ago
Read 2 more answers
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