3 years ago

A rectangle has a perimeter of 84cm and a length 35cm what is its width

1 answer:

5 0

P = 2(L + W)
P = 84
L = 35

now we sub
84 = 2(35 + W)
84 = 70 + 2W
84 - 70 = 2W
14 = 2W
14/2 = W
7 = W....so the width is 7 cm

You might be interested in

A florist buys x dozen roses and y dozen carnations for a wedding. The roses cost $16 per dozen, and the carnations cost $9 per

harkovskaia [24]

16x+9y=218

Hope this helps!

4 0

4 years ago

(12y2 + 17y - 4) + (9y2 - 13y + 3) =

Anna [14]

Answer:

$21y^{2} +4y-1$

Step-by-step explanation:

Hello!

$(12y^{2} +17y-4)+(9y^{2} -13y+3)$

For this, we can combine like terms

$12y^{2} +9y^{2}=21y^{2}$

17y - 13y = 4y

-4 + 3 = -1

Combine the answers and we get

$21y^{2} +4y-1$

Hope this Helps!

8 0

4 years ago

Read 2 more answers

C and D are mutually exclusive events. Find P(C or D). P(C)= 3/7= P(D)= 4/7 P(C or D)

IgorLugansk [536]

Answer:

$P(C\ or\ D) = 1$

Step-by-step explanation:

Given

$P(C) = \frac{3}{7}$

$P(D) = \frac{4}{7}$

Required

$P(C\ or\ D)$

Since the events are mutually exclusive, then:

$P(C\ or\ D) = P(C) + P(D)$

So, we have:

$P(C\ or\ D) = \frac{3}{7} + \frac{4}{7}$

Take LCM

$P(C\ or\ D) = \frac{3+4}{7}$

$P(C\ or\ D) = \frac{7}{7}$

$P(C\ or\ D) = 1$

3 0

3 years ago

The Image of a point under Do3, is (7,2).

Svetradugi [14.3K]

Answer:

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

$300.00 flat fee for 31 to 50 gue sts

Sergeu [11.5K]

Answer:

$50

Step-by-step explanation:

6 0

4 years ago