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2 years ago

Jackie runs and dances for 75 minutes every day.

Mathematics

2 answers:

Mumz [18]2 years ago

6 0

Answer: A. x + y = 75 B. She spends 25 minutes running and 50 minutes dancing every day. C. Yes it is.

Step-by-step explanation: B. She spends 25 minutes running and 50 minutes dancing every day, because if she dances for 25 more minutes then she runs then we can minus 25 from 75 which we get 50. Then we take the 50 a divide it by 2 because of the two categories dancing and running. So we know she spends 25 minutes running then 25 minutes dancing but we need to add the 25 minutes to dancing. So she spends 25 minutes running and 50 dancing. C. Yes it is because she already dances for 50 minutes a day so all she needs to do is workout for 10 minutes less so 65 minutes one day.

Aloiza [94]2 years ago

5 0

Answer: 75

Step-by-step explanation:

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Insert the greater than, less than, or equal sign (>, <, or =) to make each statement true.

photoshop1234 [79]

For this case we have:

Option A:

$\frac {45} {45} = 1$

So:

$1 = 1\\\frac {45} {45} = 1$

Option B:

$\frac {6} {3} = 2$

So:

$1$

Option C:

$\frac {2} {7} = 0.29$

So:

$0.29$

Option D:

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Answer:

$\frac {45} {45} = 1\\1$

6 0

2 years ago

Find the percent of change if the original price is $246.95 and the new price is $199.95. Round to nearest tenth of a percent if

Grace [21]

Answer:

<h3>Percentage change = 19%</h3>

Step-by-step explanation:

Since the new price is lesser than the original price the percentage change will be a decrease.

To find the percentage change use the formula

$Percentage \: \: change = \frac{change}{original \: \: quantity} \times 100$

To find the change subtract the new price from the original price

new price = $199.95

original price = $246.95

Change = $246.95 - $ 199.95 = $47

$Percentage \: \: change = \frac{47}{246.95} \times 100$

<h3>Percentage change = 19%</h3>

Hope this helps you

3 0

2 years ago

Read 2 more answers

PLEASES HELP ME GOD BLESS YOU!.

MA_775_DIABLO [31]

The slope intercept form is y=mx+b. m being the rate of the slope (rise over run) so in this case 2/1, or simply 2. b is the y intercept, or where a line passes through the y intercept, in this case it is -1.

3 0

2 years ago

Tire pressure monitoring systems (TPMS) warn the driver when the tire pressure of the vehicle is 26% below the target pressure.

ZanzabumX [31]

Answer:

a) 22.94 psi

b) $5.93\times10^{-5}$

Step-by-step explanation:

a)The pressure at which will trigger a warning is

31 - 31*0.26 = 22.94 psi

b) The probability that that the TPMS will trigger warning at 22.94 psi, given that tire pressure has a normal distribution with average of 31 psi and standard deviation of 2 psi

$f(x)={\frac {1}{\sigma {\sqrt {2\pi }}}}e^{-{\frac {1}{2}}\left({\frac {x-\mu }{\sigma }}\right)^{2}}$