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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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Isaiah rides the bus home and it cost $0.50. Isaiah has 3 quartiers, 5 dimes, and 2 nickles. What is the probability that Isaiah
vovikov84 [41]

Answer:

30%

Step-by-step explanation:

5+2=7+3=10

3/10=30%

2 nickels

5 dimes

3 quarters

3 0
2 years ago
Does every acute triangle have 3 congruent sides?
Gemiola [76]
No. Just because the angles are all less than 90 degrees, that doesn't tell us anything about the sides. The sides are all congruent ONLY if all 3 angles are 60 degrees each. If the angles all have different sizes, then so do the sides.
4 0
3 years ago
Find the exact perimeter of the shaded region! 10 points !
Kryger [21]

<span>I believe the answer is 60.75pi, calculated as follows:</span>

Area of Circle:  (9 * 9) * pi = 81pi

Area of Shaded Area = (90 / 360) * 81p = 20.25pi

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4 0
3 years ago
Hey can you please help me posted picture of question
mylen [45]
Answer: option A:12.

Explanation:

Since, rolling a die and tossing a coin are independent events, the sample space of both events is the product of the outcomes for each event, i.e 6 × 2 = 12.

You can check that here:


             roll a die             toss a coin
                  1                        head
                  1                        tail
                  2                        head
                  2                        tail
                  3                        head
                  3                        tail
                  4                        head
                  4                        tail
                  5                        head
                  5                        tail
                  6                        head
                  6                        tail

So, as you see for each outcome of the event roll a die there are two different possible different outcomes for the event toss a coin; since there are 6 different outcomes for the die, the total number of possibilities is 6 × 2 = 12
7 0
4 years ago
Write the equation is logarithmic form
jasenka [17]
We use the log rule logₐ b = x   ⇒   aˣ = b

Given (3)³ = 27

Following the rule, we can write (3)³ = 27 as

log₃ 27 = 3

Correct Answer: C
4 0
3 years ago
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