Please help me please

Mathematics

1 answer:

larisa [96]2 years ago

5 0

Answer:

7 pieces

Step-by-step explanation:

Hope it helps.

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If an 8 sided solid is rolled 180 times, how many times would you expect either a 3,5, or 7 to be rolled?

ArbitrLikvidat [17]

Answer:

Step-by-step explanation:

6 0

3 years ago

A person, who decided to go to weekend trip should not exceed 8 hours driving in a day. Average speed of forward journey is 60 k

Paraphin [41]

Since he must not exceed 8 hours driving in a day:
Let the distance of the picnic be = x km.

Therefore time for forward journey = x / 60
Return journey = x / 50

The total trip should not exceed 8 hours.
Therefore: x / 60 + x / 50 <= 8. LCM = 300

Taking LCM and multiplying on both sides:
5x + 6x <= 8(300)
 11x <= 2400
 x <= 2400/11
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The picnic spot must be less than or equal to 218.18 km.

5 0

3 years ago

To what place is 220.0 accurate?

natulia [17]

the answer of the question is tens

5 0

3 years ago

21 Last year Chelsea and Sonya took 236 pictures during Thanksgiving. This year Chelsea and Sonya each took the same amount of p

Leokris [45]

Let 'c' represent the number of pictures Chelsea took.

Let 's' represent the number of pictures Sonya took.

For last year's Thanksgiving, c + s = 236

For this year's Thanksgiving, let 'x' represent the number of photos taken in total. x = c + s, where c and s are two integers that are the same (c = s).

And we know that for both years, c + s + x = 500.

As we know that c + s is already 236 from last year, we can remove c + s from the equation in bold and replace it with 236 instead.

236 + x = 500.

Now we have to isolate the x term.

x = 500 - 236

x = 264.

We know that x = c + s, where c and s are the same, so we can just use one of the variables and double it (so you either get 2c or 2s - it doesn't matter which one you pick because they're both the same).

2c = 264

c = 132

c = s

s = 132.

Both took 132 pictures this year.

4 0

3 years ago

Using substitution x+3y=3 3y-2x=12

frez [133]

Step-by-step explanation:

Given :-