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suter [353]
3 years ago
13

Could someone explain how you would solve this? I really don't understand it.

Mathematics
1 answer:
nlexa [21]3 years ago
7 0
Because of rules of geometry we know that a+b=180 degrees so we can add the equations together and set that equal to 180 and solve
6x-48+4x+38=180
subtract 38 from both sides and add 48 to both sides
then add like terms
10x=170
and divide by 10 to get 
x=17
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Math I need help with it!!!!!
Snezhnost [94]

Answer:

each ouce is worth 25 cents

solution

in order to solve this you need to create proportions so

<u>10 ounces </u>

per $2.50

well you want this to be a unit rate so you would have

<u>10 ounces </u>  =<u>  1 ounce</u>

2.50                      x

to get to the unit rate, you can see that you divided 10 from 10 ounces so you would do the same to the bottom ...

2.50/10 which is equal to 0.25.

8 0
4 years ago
Solve 2x2 + 26 = 0 to identify the roots.
zalisa [80]

Answer:

x=+/-i\sqrt{13}

Step-by-step explanation:

To find the roots, factor and set equal to 0 or use the quadratic formula. This quadratic equation does not factor and must be solved using the quadratic formula.

x=\frac{-b+/-\sqrt{b^2-4ac} }{2a}

where a = 2, b=0, and c=26

x=\frac{0+/-\sqrt{0^2-4(2)(26)} }{2(2)} \\x=\frac{+/-\sqrt{-208)} }{4} \\x=\frac{+/-i\sqrt{16*13)} }{4}\\x=\frac{+/4i\sqrt{13} }{4}\\x=+/-i\sqrt{13}


7 0
3 years ago
Read 2 more answers
How do I start this?? what is the answer, im not really good at math
storchak [24]
-12 would be it because 2 negatives make a positive so -11+23 is -12
8 0
3 years ago
Simplify this expression: (7x + 3) – (4x – 5)
wolverine [178]

Answer:

Step-by-step explanation:

3x+8

6 0
3 years ago
Read 2 more answers
7. Tyson obtained a loan from the bank at 7.5% simple interest for 2. 5 years. If the simple interest was
9966 [12]

Answer:

7.He borrowed $1853.33

8.She received $28990.936

Step-by-step explanation:

7.Let x be the amount borrowed by Tyson

Rate of interest = 7.5%

Time = 2.5 years

Simple Interest = 347.50

Formula : Si = \frac{P \times T \times R}{100}

Where SI = simple interest

P = Principal

T = Time

R = Rate of interest

Substitute the values in the formula :

347.50=\frac{x \times 2.5 \times 7.5}{100}\\\frac{347.50 \times 100}{2.5 \times 7.5}=x\\1853.33=x

Hence he borrowed $1853.33

8) Principal = 20000

Rate of interest = 9.5%

No. of compounds per year = 2

Time = 4 years

Formula : A=P(1+\frac{r}{n})z^{nt}

Where A= amount

r = Rate of interest

n = no. of compounds

t = time

Substitute the values in the formula :

So, A=20000(1+\frac{9.5}{200})^{2(4)}

A=28990.936

Hence she received $28990.936

8 0
3 years ago
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