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Phantasy [73]
3 years ago
14

Ben can do 50 sit-ups in 3 minutes. At that rate, how many sit-ups can he do in 12 minutes?

Mathematics
2 answers:
Stels [109]3 years ago
5 0
Ben can do 200 sit-ups in 12 minutes.

Pepsi [2]3 years ago
3 0
The best way to do this is to set up a proportion

50     x
---- = ----
3        12

then cross multiply and divide ( 50 times 12) / 3= 200

he can do 200 situps in 12 minutes
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Wath the factorization of 8
kap26 [50]
Factorization of 8
= (2*2*2)
5 0
3 years ago
A student drove to the university from her home and noted that the odometer reading of her car increased by 16.0 km. The trip to
notka56 [123]

Answer:

Average speed is 48 km per hour

Step-by-step explanation:

A student drove to the university from her home and noted that the odometer reading of her car increased by 16.0 km. The trip took 20.0 min. (a) What was her average speed? in km/hr

Distance traveled is 16 km and the time taken is 20 minutes

convert minutes into hour. to convert minutes into hour we divide by 60 because 1 hour = 60 minutes

\frac{20}{60} =\frac{1}{3}

so time = 1/3  and distance = 16

Average speed = distance by time

speed =\frac{16}{\frac{1}{3} } =\frac{48}{1}= 48

Average speed is 48 km per hour

4 0
3 years ago
Reina surveyed her friends, asking each of them, "How many times have you been to the amusement park?" The resulting data set ha
Anna [14]

Answer:

1. right, 2. median, 3. range or the IQR

Step-by-step explanation:

5 0
2 years ago
Suppose that the quality control manager for a cereal manufacturer wants to ensure that bags of cereal are being filled correctl
likoan [24]

Answer: No, these results are not statistically significant because

p > 0.05

Step-by-step explanation:

The null hypothesis is

H0 : μ = 17

The alternative hypothesis is

H 1 : μ ≠ 17

where μ is the mean amount of cereal in each box.

The p value that he got is 0.1499. This is greater than alpha = 0.05 which is the given level of significance.

If the level of significance is lesser than the p value, we would accept the null hypothesis.

Therefore, the correct option is

No, these results are not statistically significant because p>0.05

6 0
3 years ago
The area of a rectangular pool is 6365 m2.<br> If the length of the pool is 95 m, what is its width?
PilotLPTM [1.2K]

Answer:

67

6365/95 = 67

But if your counting METERS and SQUARE METERS

It would be 134

3 0
3 years ago
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