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klasskru [66]
3 years ago
7

Show how to find 42×27 using an area model.

Mathematics
1 answer:
melomori [17]3 years ago
3 0

Step-by-step explanation:

First break it down

42= 40 & 2

27= 20 & 7

  • Then times 40 & 20 to get 800
  • 20 x 2 to get 40
  • 40 x 7 to get 280
  • 7 x 2 to get 14

Now add them all together.

800 40 1080

+280 +14 + 54

---------- ------- ---------

1080 + 54 = 1134

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Five more than the product of two and a number, decreased by seven;
PIT_PIT [208]

Answer:

First, write the expression

✔ 5 + 2a – 7

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Second,

✔ substitute

8 in for the variable, a.

Third,

✔ simplify

by using

✔ order of operations

The answer is

✔ 14

5 0
3 years ago
Read 2 more answers
Is 7/20 equal to 0.35
andrew11 [14]

Answer:

yes it is

Step-by-step explanation:

8 0
2 years ago
A shop sells small chocolate bars and large chocolate bars the small chocolate bars are sold in packs of 4 large packets of choc
IrinaVladis [17]

The number of small chocolate-bars sold is 272.

<h3>What is a ratio? </h3>

Ratio expresses the relationship between two or more numbers. It shows the number of times that one value is another value. The sign used to represent ratios is :.

<h3>What is the number of small chocolate bars sold?</h3>

The number of packs small chocolate bars sold = (ratio of he number of small chocolate bars sold / sum of ratios) x number of chocolate bars sold

(5/7) x 95 = 67.8 = 68

The number of  small chocolate bars sold = 68 x 4 = 272

To learn more about ratios, please check: brainly.com/question/25927869

5 0
2 years ago
The director of admissions at Kinzua University in Nova Scotia estimated the distribution of student admissions for the fall sem
Naily [24]

Answer: 1406

Step-by-step explanation:

Given Table :

Admissions   Probability

1,040                0.3

1,320                0.2

1,660                0.5

Now, the expected number of admissions for the fall semester is given by :-

E(x)=p_1x_1+p_2x_2+p_3x_3\\\\\Rightarrow\ E(x)=0.3\times1040+0.2\times1320+0.5\times1660\\\\\Rightarrow\ E(x)=1406

Hence, the expected number of admissions for the fall semester = 1406

3 0
3 years ago
Describe a pattern in the sequence then figure out the next 2 terms.<br><br> 3, 11, 19, 27, ..., ...
nika2105 [10]

Answer:

35, 43

Step-by-step explanation:

The pattern is that to obtain a term in the sequence , add 8 to the previous term, then

27 + 8 = 35

35 + 8 = 43

35 and 43 are the next 2 terms in the sequence

3 0
2 years ago
Read 2 more answers
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