3 years ago

Which expression is equivalent to (8a-3b+7)-(2a+b-4)?

Mathematics

1 answer:

pogonyaev3 years ago

7 0

8a-3b+7-2a-b+4=6a-4b+11

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Can someone help me please

laiz [17]

Area of trapezium= 1/2 × (a+b) × h

= 1/2 × (12 + 8) × 8

= 1/2 × 20 × 8

= 10 × 8

= 80 cm^3

Hope it helps you

3 0

2 years ago

What is the range of the data?

Ghella [55]

O
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5 0

3 years ago

Find the ratio 2 1/2 to 6 1/2

ivanzaharov [21]

Answer:

The ratio 2 1/2 to 6 1/2 is

$\frac{5}{13}\\or\\5:13$

Step-by-step explanation:

Ratio:

In mathematics, a ratio is a relationship between two numbers indicating how many times the first number contains the second.

It is also the Fraction

For example, if a bowl of fruit contains eight apples and six kiwis, then the ratio of apples to kiwis is eight to six.

i.e 8:6, which is equivalent to the ratio 4:3.

Now here,

$2\frac{1}{2}=\frac{4+1}{2}\\\\2\frac{1}{2}=\frac{5}{2}\\\\and\\\\6\frac{1}{2}=\frac{12+1}{2}\\\\6\frac{1}{2}=\frac{13}{2}$

Ratio of 2 1/2 to 6 1/2

$\frac{\frac{5}{2}}{\frac{13}{2}} = \frac{5}{13}\ \textrm{The number 2 will be cancelled from Numerator and Denominator} \\\\Hence,\\Final\ Ratio\ is\ 5 :13$

$\frac{5}{13}$

6 0

3 years ago

A town has 42,000 registered voters. A random sample of 200 voters finds that 60 voters are in favor of a new amusement park. Ho

Goryan [66]

12,600 people will probably vote.

5 0

2 years ago

Read 2 more answers

What is 3/7 plus 3/5 in fraction form?

Gnom [1K]

Least Common Factor(LCM) of 5 and 7: 35

7*5=35
5*7 = 35

Factor of 5 and 7

3/7 + 3/5 = 15/35 + 21/35 = 36/35 = $1 \frac{1}{35}$

8 0

3 years ago

Read 2 more answers