Mathematics College

Two old RSM students were standing 10 ft apart when they spotted Mrs. Rifkin. If they immediately run in opposite directions at the speeds of 150 feet per minute and 160 feet per minute respectively, how many minutes will pass before they are 1870 feet apart?

Answers

Answer 1

Answer:

Step-by-step explanation:

Seeing that the two students are running aside from

each other. We can add the speeds together.

We can also subtract 10 feet from our goal of 1870

they are already feet apart.

1870ft / (150+1650) ft per min

we are left with our answer 6

Hope this helps!

Answer 2

Answer:

5.96 minutes :)

Related Questions

Wich number line shows the graph x<-6?

The other side of the number line is -5 and -10

Answers

The first one is the right answer

Answer:

It is the first one

Step-by-step explanation:

Open circle is greater or less than.

Closed circle is greater than or equal to and less than or equal to.

Does the point (-8, 8) satisfy the inequality 16x + 15y = -8?
yes
no

Answers

Answer:

Yes

Step-by-step explanation:

16x+15y=-8

16(-8)+15(8)=-8

-8=-8

Hope that helps :)

Answer:

True

Step-by-step explanation:

The left side − 8 is equal to the right side − 8 , which means that the given statement is always true.

todo número tem?

o zero não é de nenhum número natural?

Answers

Answer:

0 não é um número natural.

Step-by-step explanation:

0 não é positivo ou negativo. Como todos os números naturais são inteiros positivos, não podemos dizer que 0 é um número natural.

Help please !! need it asap

Answers

120? I believe sorry if you get it wrong!

what's y=-4+15 in standard form

Answers

Answer:

y=1.1×10¹

Step-by-step explanation:

y=-4+15

y=11

y=1.1×10¹

PLEASE HELP NO SCAM LINK OR REPORTED :) THANKS

Answers

Answer: b

Step-by-step explanation:

2x is x doubled

and then add 5 to the product

I’m unsure how to do this statistics problem I believe it has to do with the bell curve

Answers

You’d have to write out a graph with standard deviation and all that. It would be C. Ask if you want a better explanation

and Mandy takes 3.9 percent of jimmy chocolate jimmy has 5000 pieces of chocolate chocolate how much does jimmy have left

Answers

Answer:

Jimmy has 4805 left

Step-by-step explanation:

3.9% = 0.039

5000(0.039) = 195

Mandy took 195 pieces

5000 - 195 = 4805

Jimmy has 4805 left

Of all of the individuals who develop a certain rash, suppose the mean recovery time for individuals who do not use any form of treatment is 30 days with standard deviation equal to 8. A pharmaceutical company manufacturing a certain cream wishes to determine whether the cream shortens, extends, or has no effect on the recovery time. The company chooses a random sample of 100 individuals who have used the cream, and determines that the mean recovery time for these individuals was 28.5 days. Does the cream have any effect

Answers

Answer:

z(s) is in the rejection region. We reject H₀. We dont have enought evidence to support that the cream has effect over the recovery time

Step-by-step explanation:

Sample information:

Size n = 100

mean x = 28,5

Population information

μ₀ = 30

Standard deviation σ = 8

Test Hypothesis

Null Hypothesis H₀ x = μ₀

Alternative Hypothesis Hₐ x < μ₀

We assume CI = 95 % then α = 5 % α = 0,05

As the alternative hypothesis suggest we should develop a one tail-test on the left ( we need to find out if the cream have any effect on the rash), effects on the rash could be measured as days of recovery

A z(c) for 0,05 from z-table is: z(c) = - 1,64

z(s) = ( x - μ₀ ) / σ/√n

z(s) = ( 28,5 - 30 ) / 8/√100

z(s) = - 1,5 * 10 / 8

z(s) = - 1,875

Comparing z(s) and z(c)

|z(s)| < |z(c)| 1,875 > 1,64

z(s) is in the rejection region. We reject H₀. We dont have enought evidence to support that the cream has effect over the recovery time

one boy s c o r e d 80% out of a total of 500 marks how many marks did that boy is scored

Answers

The boy scored:

500 x 80% = 400 (marks)

The boy scored 500*80%= 400marks

If we roll 40 times, how many rolls would you expect to win?

Answers

Answer:

what

Step-by-step explanation:

ok first of all roll what. If its a coin you will expect to win 20 times . if its a dice than it will be around 6.67 times.

Please help! What is the volume of the cone?

Answer and explanation please! <3

Answers

Answer: V≈804.25

Step-by-step explanation:

V=πr2h

3=π·82·12

3≈804.24772

use the graph to answer the question giving brainlest

Answers

Answer:

I only know two sorry

A. -6

C. Increasing

Anna spent 3/4 of her money for a dress, She has 2.00 left, How much does she have at first?

Answers

Anna had $8.00 because 2*4=8 which also means Anna spent $6.00 on her dress.

you don't have to answer them all but help me out !!

Answers

Answer:

1. 10n

2. 3x^2z^2

3. 2(9n^3 - 3n^2 + 3n - 1)

4. (Put the same thing)

5. There are no common factors so it is completely factored out.

Step-by-step explanation:

For 1, you gotta find the gcf of the numbers and the variables. So, the common factor of 90, 70, 70, and -80 is 10. Nothing else greater than 10 divides these numbers. For the variables, only "n" is the GCF, as there is one "n" and all the other numbers have n^2 and etc.

For 2, same thing, you have to find the gcf for the numbers and the variables.

3. same thing ;-; (gcf is 2 btw, nothing divides the variables because 2 has no "n".

4. theres nothing that divides the numbers or the variables. So, the gcf is just 1.

Justin is marking a border for a garden. He walks 200 feet to the east, then turns and

walks 120 feet due south, before finally walking in a straight line back to his original

starting point. To the nearest foot, how far does Justin walk in all?

Answer

feet

Answers

Answer:

d = 233.23 feet

Step-by-step explanation:

Given that,

Justin walks 200 feet to the east, then turns and walks 120 feet due south.

We need to find the total distance walked by Justin. Let the distance be d.

We can use the Pythagoras theorem to find it such that,

[tex]d=\sqrt{d_1^2+d_2^2} \\\\d=\sqrt{200^2+120^2} \\\\d=233.24\ feet[/tex]

So, he walk 233.23 feet in all.

The probability that Ismael makes a basket is 7/10. If he shoots 100 baskets, how many can he expect to make?

Answers

Answer:

70 baskets

Step-by-step explanation:

Let b be the number of baskets he will make if he shoots 100 baskets.

[tex]\frac{7}{10} =\frac{b}{100} \\700=10b (now divide by 10 from both sides)\\[/tex]

please help me i will give a brainliest

Answers

(-3, 33) I think it’s that but if not I’m sorry.

help plssssssssssssssssss

Answers

Answer:

3) Not equivalent

4) Equivalent

5) Equivalent

(Multiply by two for the last two questions)

Please help meeeeeeeeeee

Answers

I hope this helped

Step-by-step explanation:

First : Find the area by using length x width x height

Second: 18in (long/length) x 12in (wide/width) 10in (high/height)

last : 18 x 12 x 10

=2,160 in/ C

ery Test
1
Select the correct answer.
Who is a consumer?
OA.
a person who buys items in a store
OB.
a person who owns a store
O C.
a person who works at a store

Answers

À because a consumer is the customer so your answer would be A

PLEASE HELP!!! ILL GIVE BRAINLIEST !! Which is the correct answer ?

Answers

Answer:

B. Straight angles

Step-by-step explanation:

When combined, they form a straight line. They are also supplementary angles. When added together, they = 180 degrees.

Answer:

C. Alternate interior angles

Step-by-step explanation:

What is the sum of 4 3/10 + 3 6/10 =

Answers

Answer:

The sum is 10 times 11Step-by-step explanation:

Answer:

I just put it into my calculator, but if you don't have one here's how to solve this by hand.

First, figure out what 4 3/10 is. Once you figured that out, you should've gotten 43/10 = 4 3/10. Next do 3 6/10, you should get 18/5 = 3 6/10. This may seem like a useless part but it can help if you have a different learning method or thinking than others. How I found the 43/10 and 18/10 was that if you add the whole number and denominator and add the numerator then you get your sum fraction(s). 43/10 and 18/5.

Since both the original fractions above have a denominator of 10, the final sum will also have a denominator of 10. If you take your calculator and put in 43/10 + 18/5 and hit the = button, you should get 79/10 = 7 9/10.

Step-by-step explanation:

Hope that this helps! :)

Have a great rest of your day/night!

Help

See the picture

Answers

Answer:

38.63Step-by-step explanation:

Area x height

Answer:

SA = 12 mi²

Step-by-step explanation:

bottom = 2 x 2 = 4 mi²

one side = 1/2(2)(2) = 2 mi²

SA = 4(2) + 4 = 12 mi²

Evaluate the expression below when x = 2 and z = 12. z + 5x^3

Answers

Answer:

Step-by-step explanation:

z + 5x ^3

12 + 5*(2^3)

12 + 5 * 8

12 + 40

5th grade math. correct answer will be marked brainliest, select which is greater than,equal to, less than for all

Answers

Answer:

Step-by-step explanation:

1. Less than

2. Greater than

3. Equal to

4. Greater than

5. Equal to

6. Less than

i’ll give you brainliest if you help me please

Answers

Answer:

b) 40

Step-by-step explanation:

x + x + 100 = 180

2x + 100 = 180

2x = 80

x = 40

help me plsssssssss asap

Answers

Answer:

Step-by-step explanation:

All you have to do is count, and you'll see 5 faces, 6 vertices, and 9 edges

its easy to do.

The answer would be B.

you guy have any song requests?

Answers

Answer:

Never want to give you up

Step-by-step explanation:

Brainliest? pls

Famous Dex - Pick It Up (Lyrics) feat. A$AP Rocky

My ordinary life

SoFaygo - Knock Knock

Streets

D !ck

Jorge randomly selects a digit from 0 to 9. What is the probability that the digit he selects is a prime number?

Answers

Step-by-step explanation:

{0,1,2,3,4,5,6,7,8,9}--set of numbers from 0 to 9

{2,3,5,7}---set of prime numbers from 0 tp 9

there are 10 numbers in the first set and 4 numbers in the second set.

4/9 is the probability that the digit he selects is a prime number

Hope that helps :)

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