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ollegr [7]
3 years ago
14

4. Sophie can type 128 words in 3 minutes.

Mathematics
2 answers:
fiasKO [112]3 years ago
8 0

Answer:

13.5 minutes

Step-by-step explanation:

128 = 3 minutes

128/3 = 1 minute worth of words

42.6 = 1 minute

576/42.6 = 13.5

STatiana [176]3 years ago
4 0

Answer:

13.5min or 13min 30sec

Step-by-step explanation:

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Compare by using < > or = between the pairs of numbers l - 8l ____ l2l
valentina_108 [34]

Answer:

It is >

Step-by-step explanation:

because the absolute value of -8 is 8 and the absolute value of 2 is 2 so 8 is bigger than 2

8 0
3 years ago
Show many sandwiches will each group get? And How much will each group member receive?
marishachu [46]
There will be 6 groups so we divide 27 by 6 which equals 4.5. soo each group will be getting 4. everyone would get atleast one with 3 left over.
8 0
3 years ago
A model rocket is launched with an initial velocity of 200 ft per second. The height h, in feet, of the rocket t seconds after t
Solnce55 [7]

Answer:

2.10 s, 10.40 s.

Step-by-step explanation:

We know that the height of the rocket is given by the function:

h=-16t^2+200t

We are asked to find the time for which the height of the rocket will be 350 ft. So, for that moment, we know the height but we don't know the time; however, we know that the equation can help us to find the time, doing h=350:

350=-16t^2+200t

The last is a quadratic equation, which can be put in the form at^2+bt+c=0 and solved applying the formula:

t=\frac{-b+-\sqrt{b^2-4ac} }{2a}

So, let's put the equation on the form at^2+bt+c=0 adding 16t^2 and subtracting 200t to each side of the equation; the result is:

16t^2-200t+350=0

So, we note that a=16, b=-200, and c=350.

Then,

t_1=\frac{200-\sqrt{200^2-4*16*350} }{2*16}=2.10

t_2=\frac{200+\sqrt{200^2-4*16*350} }{2*16}=10.40

According to the equation, that are the times for which the height will be 350 ft; that is because the rocket is going to ascend and then to fail again to the ground.

4 0
3 years ago
What is the size of the sample space for flipping 7 coins? Write your answer as a single integer.
Elenna [48]
I think the answer is 6
4 0
3 years ago
Read 2 more answers
NEED ANSWER ASAP<br> MARKING BRAINLIEST
just olya [345]

Answer:

b \times 3 < 200 \\ i \: don't \\ have \: a steric \:

7 0
3 years ago
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