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3 years ago

Estimate the sum. 68.4 + 50.2 = ? Use rounding to estimate the sum.

Mathematics

2 answers:

Alex73 [517]3 years ago

8 0

Answer:

118.6 or 119

Step-by-step explanation:

you just add and round up

mr Goodwill [35]3 years ago

4 0

Answer:

rounded answer : 118

non rounded answer: 118.6

Step-by-step explanation:

round 68.4 to 68 and 50.2 to 50 so rounded you get 118

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D’Andra has a dentist appointment in 5 weeks. There are 7 days in a week. How many days are in 5 weeks?

Lisa [10]

Answer:

A. 35

Step-by-step explanation:

Each week has 7 days, and we have 5 weeks.

Week 1 has 7 days.

Week 2 has 7 days.

Week 3 has 7 days.

Week 4 has 7 days.

Week 5 has 7 days.

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8 0

3 years ago

Read 2 more answers

Please help!!

postnew [5]

$2 \frac{5}{8} \div 2 \frac{1}{2}$
Change the mixed fractions to improper fractions.
To do this, multiply the whole number part by the denominator. Add that to the numerator. Then write the result on top of the denominator.

You would now have:
$\frac{21}{8} \div \frac{5}{2}$
Change the division sign to a multiplication sign by turning the second fraction upside down.
That is,
$\frac{21}{8} \times \frac{2}{5}$

The answer is:
$\frac{42}{40}$

This can be simplified to:
$\frac{21}{20}$

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3 years ago

A poker hand consisting of 7 cards is dealt from a standard deck of 52 cards. Find the probability that the hand contains exactl

77julia77 [94]

Answer:

The probability is 2,010,580/13,378,456

Step-by-step explanation:

Here is a combination problem.

We want to 7 cards from a total of 52.

The number of ways to do this is 52C7 ways.

Also, we know there are 12 face cards in a standard deck of cards.

So we are selecting 3 face cards from this total of 12.

So also the number of cards which are not face cards are 52-12 = 40 cards

Out of all these 40, we shall be selecting exactly 4. The number of ways to do this 40C4

Thus, the required probability will be;

(40C4 * 12C3)/52C7 = (91,390 * 220)/133,784,560

= 20,105,800/133,784,560 = 2,010,580/13,378,456

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2 years ago

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3 years ago

Estimate the sum. 68.4 + 50.2 = ? Use rounding to estimate the sum. ​

Estimate the sum. 68.4 + 50.2 = ? Use rounding to estimate the sum.