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3 years ago

What does X equal how do I get it?

Mathematics

2 answers:

EleoNora [17]3 years ago

7 0

Equilateral because of those hash marks

so

14.1=y-7
add 7 to both sides
21.1=y

and, all internal angles of equilaterl are 60 degrees
3x=60
divide by 3
x=20 degrees

y=21.1ft
x=20 degrees

kvv77 [185]3 years ago

3 0

X=20 because it's an equilateral triangle all the angles are 60 deg

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3 years ago

If the principal is $300 rate 3% time 4 years then what is the interest earned and the new balance

Tomtit [17]

Answer:

a) Interest earned = $36

New Balance = $336

b) Interest rate = 0.05 or 5%

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Step-by-step explanation:

We are given:

a) Principal (P) = $300

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b) a) Principal (P) = $300

Rate (r) = ?

Time (t)= 3 years

Interest earned = 67.50

The formula used is: $Simple \ Interest (I)= P\times r\times t$

Putting values and finding rate

$Simple \ Interest (I)= P\times r\times t\\67.50= 450\times r\times 3\\67.50=1350\times r\\r=\frac{67.50}{1350}\\r=0.05 \ or \ 5\%$

So, Interest rate = 0.05 or 5%

New Balance = Principal + Interest = 450+67.50 = $517.5

c) Principal (P) = $500

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Putting values and finding time

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So, time t = 5

New Balance = Principal + Interest = 500+112.50 = $612.5

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Rate (r) = 8% or 0.08

Time (t)= 2 years

Interest earned = 108.00

The formula used is: $Simple \ Interest (I)= P\times r\times t$

Putting values and finding Principal

$Simple \ Interest (I)= P\times r\times t\\108=P\times 0.08 \times 2\\108=P\times 0.16\\P=\frac{108}{0.16}\\P=675$

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