3 years ago

sybrina jogged 2 miles in 30 minutes at this rate how far would she jog in 90 minutes at what rate did she jog each hour

Mathematics

1 answer:

VLD [36.1K]3 years ago

3 0

If you do cross multiplication and multiply 90 by 2 then divide that answer with 30, your answer should be 6

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In a contest to guess the number of jelly beans in a jar, Alice guessed 25;Betty, 18;Clare,23;Dotty,19;Edith,24;and Fran,17. Two

vampirchik [111]

Answer:

There are 21 jelly beans in the jar.

Step-by-step explanation:

Suppose, the number of jelly beans in the jar is $x$

Two were off by 2, two were off by 3, two were off by 4. That means, the six guessed number will be: $(x+2), (x-2), (x+3), (x-3), (x+4), (x-4)$

Given that, Alice guessed 25; Betty, 18; Clare, 23; Dotty, 19; Edith, 24; and Fran, 17.

So, the sum of all six guessed number will be: $25+18+23+19+24+17=126$

Thus, the equation will be..........

$(x+2)+(x-2)+(x+3)+(x-3)+(x+4)+(x-4)= 126\\ \\ 6x= 126\\ \\ x=\frac{126}{6}=21$

So, the number of jelly beans in the jar is 21.

5 0

2 years ago

Determine the correct value of 3x + 2 when x = 5. Show your work

Alexxandr [17]

Answer:

Step-by-step explanation:

3 multiply by 5 (which is x) = 15+2

7 0

3 years ago

3x^2- 2x has no c term. That means c = 0 * TRUE or FALSE?

just olya [345]

F means false so it is not true it is false

4 0

2 years ago

Xavier's bowling average is 185.4 and Lola's average is 122.9. About how many times greater is Xavier's average than Lola's?

Lena [83]

Hello!

To find how many times greater his average is, we just divide.

185.4/122.9≈1.51

Therefore, his average is about 1.51 times greater than Lola's.

I hope this helps!

8 0

2 years ago

Read 2 more answers

What is the equation of the line that has a slope of 3 and goes through the point (-3,5)?

sveticcg [70]

Answer:

C. y=3x-4

Step-by-step explanation:

I just know trust me

8 0

2 years ago