2 years ago

Elimination method a-b=3 2a+3b=b

Mathematics

1 answer:

denis-greek [22]2 years ago

3 0

Answer:

a=3/2 b=-1 1/2

Step-by-step explanation:

You might be interested in

Daniel bought 2 boards of wood for a school project. one board is 24 inches long, and the other board is 20 inches long. he want

lisov135 [29]

Answer:

48 inches (i tried)

3 0

1 year ago

The value of which of these expressions is closest to e?

mars1129 [50]

Answer:

Step-by-step explanation:

Given: expressions

To find: the expression whose value is closest to e

Solution:

Value of e is 2.718

$\left ( 1+\frac{1}{19} \right )^{19}=\left ( \frac{20}{19} \right )^{19}=2.65\\\left ( 1+\frac{1}{22} \right )^{22}=\left ( \frac{23}{22} \right )^{22}=2.659\\\left ( 1+\frac{1}{20} \right )^{20}=\left ( \frac{21}{20} \right )^{20}=2.653\\\left ( 1+\frac{1}{21} \right )^{21}=\left ( \frac{22}{21} \right )^{21}=2.656$

Therefore, value 2.659 is closest to the value of e.

So, option B. is correct.

7 0

2 years ago

You are throwing a party for your friend. The caterer charges $60 per person. Fifteen guests have been invited, but you are not

SVEN [57.7K]

Answer:

a.) write an equation to represent this situation

Step-by-step explanation:

4 0

2 years ago

Given a triangle with perimeter 63 cm, one side of which is 21 cm, and one of the medians is perpendicular to one of its angle b

Rainbow [258]

Answer:

The lengths of all sides of the triangle will be 21 cm, 21 cm, and 21 cm

Step-by-step explanation:

Given that the perimeter of the triangle = 63 cm

And the length of one side = 21 cm

and one of the medians is perpendicular to one of its angle bisectors

Since triangle has 3 sides,

Median = 63 ÷ 3 = 21

Therefore each side length = 21 cm

7 0

2 years ago

0.000000000093 in scientific notation

Inga [223]

no because like he said you have to move the decimal places

6 0

2 years ago