3 years ago

The hospital shop buys cereal bars in packs of 4. In one day they sell 58 cereal bars. How many packets did they open tht day?

1 answer:

5 0

They opened 15 boxes. you can tell that this is the answer because 58÷4=14.5 and you can't open half a box so you round up to 15

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yan [13]

Answer: —> (d).........

5 0

3 years ago

Which expression is equivalent to<br> 32x8, 10?

diamong [38]

Answer:

480

Step-by-step explanation:

8x4=32

8x8=64

32x4=128

32x8=256

256+128+64+32=480

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3 years ago

A scientist wishes to estimate the mean breaking strength of a certain type of steel rod within 3.0 psi with 95% confidence. Bas

yaroslaw [1]

Answer:97 rods

Step-by-step explanation:

The number of steel rods for 95% confidence level

$n=\left ( \frac{Z_\frac{\alpha }{2}\times \hat{\sigma }}{E} \right )^2$

$Z_\frac{\alpha }{2}=1.96$

E=3

$\hat{\sigma }=15$

Substituting values

$n=\left ( \frac{1.96\times 15}{3}\right )^2$

$n=96.04\approx 97$

Thus 97 rods is tested

6 0

4 years ago

You are 330 miles from home and you are driving toward home at an average of 55 mph. Write an equation to represent the situatio

Mars2501 [29]

Okay, I just know the answer not the range:

330 divided by 55 is 6. It would take 6 hours.

3 0

3 years ago

Read 2 more answers

the population of a small city grows by 600 every year. If there were 900 people initially, find the population of the city 60 y

soldier1979 [14.2K]

Answer:

36900

Step-by-step explanation:

It's a linear function with equation P(t)=900+600*t. P(60)=900+600*60=36900

8 0

3 years ago