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3 years ago

List 5 different times in which the minutes before are the same as the minutes after the hour

Mathematics

1 answer:

galben [10]3 years ago

4 0

1:50 and 2:10
2:50 and 3:10
3:50 and 4:10

If I understand the question correctly..

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What is the slope of this line? 3/4 −3 −3/4 4

baherus [9]

Answer:

Step-by-step explanation:

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3 years ago

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A sandwich shop offers 5 types of bread, 4 types of cheese, and 7 types of meat to choose from. Each sandwich will have 1 type o

katrin [286]

Answer:

I'm pretty sure the answer is B also known as 35

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3 years ago

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A rocket is shot straight into the air at an initial velocity of 70 feet/second.

DanielleElmas [232]

Answer: 245 feet

Step-by-step explanation:

Given: The height of the rocket after t seconds is represented by the formula:

$h=70t-5t^2$

$\dfrac{dh}{dt}=70-10t$ [Differentiate both sides w.r.t. t]

Put

$\dfrac{dh}{dt}=0\\\\\Rightarrow\ 70-10t=0\\\\\Rightarrow\ t=\dfrac{70}{10}=7$

Also, $\dfrac{d^2h}{dt^2}=-10$ i.e. height is maximum at t=7.

Maximum height = $h=70(7)-5(7)^2 = 490 - 245= 245\text{ feet}$

Hence, the maximum height the rocket reaches = 245 feet.

3 0

3 years ago

Jessica is a custodian at Oracle Arena. She waxes 20 m2 of the floor in 3/5 of an hour. Jessica waxes the floor at a constant ra

Ghella [55]

to solve this, you need to set up an equation to solve for x, the number of square meters waxed in an hour:

$\frac{20}{3/5} = \frac{x }{1 }$

you can use cross multiplication to solve for x:

$\frac{3}{5} x = 20$

$3x = 100\\x = 100/3$

so jessica can wax 100/3 square meters per hour. you can convert this to decimal form (which would be 33.3 repeating) or you can leave it in fraction form.

6 0

3 years ago

jeni works from 8:00-3:15 three days in a row, only taking a half-hour unpaid lunch break each day. if she is paid $15 per hour,

enyata [817]

Jeni gets paid $ 303.75 for 3 days

Solution:

Given that,

Jeni works from 8:00-3:15 three days in a row

Find the number of hours between 8 : 00 to 3 : 15

8 : 00 to 3 : 15 = 7 hours 15 minutes

She is taking half-hour unpaid lunch break each day

7 hours 15 minutes - half an hour = 6 hours 45 minutes

So, she works for 6 hours 45 minutes for each three days

$6\ hours\ 45\ minutes = 6 + \frac{45}{60} = 6 + 0.75 = 6.75\ hours$

She is paid $15 per hour

Therefore, total earnings for 3 days is given as:

$Total\ Earnings = 3 \times 15 \times 6.75\\\\Total\ Earnings = 303.75$

Thus she gets paid $ 303.75 for 3 days

7 0

3 years ago