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2 years ago

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Bob can't believe how bad London's traffic is today. In the past 10 minutes, his cab has barely moved 500 meters! He wonders if

walking would have been faster. If Bob walks at an average speed of 5 kilometers per hour, how many minutes would it take him to walk 500 meters?

2 answers:

PolarNik [594]2 years ago

8 0

I’ll answer your question just help me with mine pls7:7

larisa86 [58]2 years ago

8 0

Answer:

it would take about 5 mins.

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Dr.Lamb is mixing a solution for his next patient. He has a cylindrical test tube which is 4 inches across on the inside. The de

SSSSS [86.1K]

Answer: There are 34.35 liters left in the test tube.

Step-by-step explanation:

Since we have given that

Depth of the tube = 9 inches

Circumference of base=4 inches

As we know the formula of circumference ,

$Circumference=2\pi r\\\\4=2\times \frac{22}{7}\times r\\\\4\times{7}{22\times 2}=r\\\\\frac{7}{11}=r$

Now, we need to find the volume of tube is given by

$\text{ Volume of test tube }=\pi r^2h\\\\\text{ Volume of test tube }=\frac{22}{7}\times \frac{7}{11}\times \frac{7}{11}\times 9\\\\\text{ Volume of test tube }=\frac{126}{11}=11.45\ inches^3$

Since we have also given that,

Of 1 cubic inch of space holds 3 liters of water,

So,

$1\text{ cubic inch}=3\text{ liters}\\\\11.45\text{ cubic inches}=3\times 11.45=34.35\text{ liters}$

Hence, there are 34.35 liters left in the test tube.

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2 years ago

Simplify. (7√2) (3√3 <br>A √14√9 <br>B. 10√5 <br>C. 21√6 <br>D. 10√6 <br>E. 63

Hunter-Best [27]

Answer:

Step-by-step explanation:

(7√2)(3√3) = 7·3·√2·√3

= 21√(2·3)

= 21√6

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2 years ago

Need some help with this question-<br> look at image for details :]

postnew [5]

Bottom right corner box is the answer.

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2 years ago

Tim has $20 to buy snacks for 12 people in an office. Each person will get one snack. Tim is buying bags of pretzels that cost $

Greeley [361]

Answer:

8 bags of pretzels

Step-by-step explanation:

Let x represent the number of bags of pretzels Tim buys. We assume he spends exactly $20 on exactly 12 bags of snack food. Then his purchase is ...

1.50x + 2.00(12-x) = 20.00

-0.50x +24.00 = 20.00 . . . eliminate parentheses, collect terms

-0.50x = -4.00 . . . . . . . . . . .subtract 24

x = 8 . . . . . . . . . . divide by -0.50

Tim will buy 8 bags of pretzels.

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3 years ago

What is 2/4 as a decimal and percent

galben [10]

.5 as a decimal and 50% as a percent

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2 years ago

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