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3 years ago

The length of a rectangle is 4 more than its width. The area of the rectangle is 21m2 . What is the measure of the width?

Mathematics

1 answer:

nadezda [96]3 years ago

7 0

The width is 3m because 3*7 is 21m^2. Also they said the length is 4 more than the width (3+4=7)

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Free for all<br> gl<br> :) dun dun DUN

erastovalidia [21]

Answer:

Step-by-step explanation:

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5 0

2 years ago

write a rational expression involving one variable for which the excluded values are -4 and -7. Please Help!!!!!!

lions [1.4K]

Answer:

See below.

Step-by-step explanation:

Values are excluded if they make the denominator zero, so one rational expression could be:

(x^2 - 9) / (x + 4)(x + 7)

- when x = -4 or -7 then the denominator is zero so the values of the function is undefined for these values.

3 0

3 years ago

Show work plz

NemiM [27]

25 percent is the same as the decimal 0.25.

Multiply 100 by 0.25 to see what 25% of 100 is.
100x0.25=25

Then, to find the price raised by 25%, add 25 to 100.
100+25=125

The final answer is $125.

Hope this helps!

6 0

3 years ago

Somebody please help me with this !!!

Damm [24]

Step-by-step explanation:

Case 1 :

$3x + 2y = 6 \\ 4x + y = 2 \\ 3x = 6 - 2y \\ x = \frac{6 - 2y}{3} = \\ x = 2 - \frac{2y}{3} \\ 4(2 - \frac{2y}{3} ) + y = 2 \\ 8 - \frac{8y}{3} + y = 2 \\ - 1.67y = - 6 \\$

$y = 3.59 \\ x = 2 - \frac{2y}{3} \\x = 2 - \frac{2 \times 3.59}{3} \\ \\ x = - 0.39$

Case 2 :

$3x + 2y = 6 \\ 4x - y = 2 \\ x = 2 - \frac{2y}{3} \\ 4(2 - \frac{2y}{3} ) - y = 2 \\ 8 - \frac{8y}{3} - y = 2 \\ - 3.67y= - 6 \\ y = 1.63$

$x = 2 - \frac{2y}{3} \\ x = 2 - \frac{2 \times 1.63}{3} \\ x = 2 - 1.087 \\ x = 0.913$

7 0

3 years ago

A triangle has base angles of 52.5 degrees each. What is the measurement of the third angle?

guajiro [1.7K]

Answer:

The answer is 75 degrees

Step-by-step explanation:

All triangles interior angles will at up to 180. 52.5+52.5= 105. 180-105= 75 degrees.

3 0

3 years ago