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3 years ago

If XY= 30, and XZ= 100, then YZ= ____.

Mathematics

1 answer:

marishachu [46]3 years ago

3 0

Answer:

yz= 100-30

yz= 70.

hope it helps.

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On his first day of school, Kareem found the high temperature in degrees Fahrenheit to be 76.1°. He plans to use the function C

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Answer: the temperature of 76.1 degrees Fahrenheit converted to degrees Celsius

Step-by-step explanation:

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3 years ago

Parallel to y=2/3x+4 and goes through (-9,-2)

Ostrovityanka [42]

Hey there :)

y = $\frac{2}{3}x + 4$

Since this line is parallel to the line to be found, both have the same slope: $\frac{2}{3}$

Coordinates: ( - 9 , - 2 )

y - ( -2 ) = $\frac{2}{3}$ ( x - ( -9 ) )
$y + 2 = \frac{2}{3} x + 6$
$y = \frac{2}{3} x + 6 - 2$

$y = \frac{2}{3}x + 4$

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3 years ago

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At the middle school graduation dance, the DJ played 12 slow dances, which was equal to the quotient of the number of fast dance

belka [17]

quotient means divide

so 12 = x/2

x = 12*2 = 24

x =24 fast songs

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3 years ago

Please answer this question...

Dafna1 [17]

Answer:

109.56

Step-by-step explanation:

bodmas

yeah

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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%

New Balance = $517.5

c) time t = 5

New Balance = $612.5

d) Principal Amount = $675

New Balance = $783

Step-by-step explanation:

We are given:

a) Principal (P) = $300

Rate (r) = 3% or 0.03

Time (t)= 4 years

Interest earned = ?

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

Putting values and finding interest

$Simple \ Interest (I)= P\times r\times t\\Simple \ Interest (I)= 300\times 0.03\times 4\\Simple \ Interest (I)= 36$

So, Interest earned = $36

New Balance = Principal + Interest = 300+36 = $336

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

Rate (r) = 4.5% or 0.045

Time (t)= ?

Interest earned = $112.50

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

Putting values and finding time

$Simple \ Interest (I)= P\times r\times t\\112.50= 500\times 0.045\times t\\112.50=22.5 \times t\\t=\frac{112.50}{22.5}\\t=5$

So, time t = 5

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

d) Principal (P) = ?

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

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

So, Principal Amount = $675

New Balance = Principal + Interest = 675+108 = $783

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3 years ago