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dimaraw [331]
3 years ago
9

Jessica completed 21 math problems in 14 minutes. At this rate, how many math problems could she complete in 30 minutes?

Mathematics
1 answer:
harina [27]3 years ago
6 0
To do this problem, you need to find how many questions per minute she can do. You would need to do 21 divided by 14. Which equals 1.5 questions per minute. From there you would do 1.5 times 30 and get 45.

So she can get 45 questions in 30 minutes.


Hope that helps!!
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A 6-ounce bag of raisins costs $2.46.An 8-ounce bag of raisins costs $3.20.Which is the better deal?
GenaCL600 [577]
So we need to compare them at the sam ounches


find the least common multiple (the smallest number that they will both multiply into)

first find the factors and group them all together, delete any repeats


6=2*3
8=2*2*2

least common multiple=2*2*2*3=24

so 6 bags=2.46
multiply by 4 to get 24
24 bags=9.84






so 8 bags=3.20
multply by 3
24 bags=9.60


9.84>9.60 so

the 8 ounce bag is less expensive
5 0
3 years ago
Read 2 more answers
Currently they sell a tub of popcorn for $10. SHOW or EXPLAIN what the cost of the cone of popcorn should be. Door context: The
Nina [5.8K]

Answer:

The cost of cone of popcorn is $ 2.59.

Step-by-step explanation:

The tub has a volume of 540.473 and costs $10. The cone has a volume of 140.035.

The cost of per unit volume is

$10/540.473

The cost of cone of popcorn is

\frac{10}{540.473}\times 140.035\\\\2.59

7 0
3 years ago
The kiddie pool has a hole in it and is losing water at a rate of 12 fl oz per minute. What is the change in amount of water in
bonufazy [111]

Answer:

48oz

Step-by-step explanation:

12x4=48oz

5 0
2 years ago
Read 2 more answers
nobodys probably gonna answer this ): but if you can please do with the answers its for my homework :)
kotegsom [21]

                                                       <u>Answer</u>

<h3>12 ) $1000</h3><h3 /><h3>13 ) Y-Intercept = 1000</h3><h3>       Slope = \frac{3000-2000}{4-2} = \frac{1000}{2} = \frac{500}{1}</h3><h3 /><h3>14 )  \left(x^{1\ },\ y^{1}\right)\left(x^{2},\ y^{2}\right) → \left(2\ ,\ 2000\right)\ \left(4\ ,\ 3000\right) → \frac{3000-2000}{4-2} → \frac{500}{1}</h3><h3 /><h3>15 ) The meaning of the slope is the steepness of the line, in this graph, the meaning is 500 over 1.</h3><h3 />

<em>Hope this helps! <3</em>

<h2 />

6 0
2 years ago
Solve the<br>Pi<br>Simultaneous equation<br>using elimination<br>3x+2y=2<br>2x+2y =-7​
torisob [31]

Answer:

x= 9

y=-12.5

Step-by-step explanation:

3x+2y = 2×2

2x+2y =-7×3

6x+4y =4

- 6×+6y =-21

-2y =25

y=-12,5

2x+2(-12,5)= -7

2x+-25= -7

2x= -7+25

2x/2=18/2

x= 9

5 0
3 years ago
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