All categories

3 years ago

The formula for the perimeter of a rectangle is P=2(l+w).

Mathematics

1 answer:

dangina [55]3 years ago

4 0

P=2(l+w)
P/2=l+w
W=p/2-l

A=(a+b)2h
A/2h=a+b
a=A/2h-b

You might be interested in

A physician orders 0.5oz of magnesia and alumina oral suspension antacid 4 times per day for a client with indigestion.how many

Brut [27]

1 fl oz. is equivalent to 29.6 ml.
0.5 * 4 * 29.6 = 59.2 ml

3 0

3 years ago

Dave ordered dinner for a party of 10 people. Three people ordered the $4.75 chicken dinner, two people ordered the $4.95 fish d

postnew [5]

Answer:

The average cost of each dinner at Dave's party is <u>$5.79</u>.

Step-by-step explanation:

Given:

Dave ordered dinner for a party of 10 people.

Three people ordered the $4.75 chicken dinner, two people ordered the $4.95 fish dinner, and five had the beef dinner at a cost of $6.75 each.

Now, to find the average cost of each dinner at Dave's party.

So, we get the total amount for the dinner:

Three people ordered the $4.75 chicken dinner.

$4.75\times 3=14.25$

Two people ordered the $4.95 fish dinner.

$4.95\times 2=9.90$

Five had the beef dinner at a cost of $6.75.

$6.75\times 5=33.75$

Total amount of dinner = $14.25+9.90+33.75=\$57.90.$

Now, to get the average cost of each dinner of 10 people we divide the total amount of dinner by 10:

$57.90\div 10$

$=\$5.79.$

Therefore, the average cost of each dinner at Dave's party is $5.79.

7 0

3 years ago

Complete the table using the rule y=x-1/4

IgorLugansk [536]

If y=X-1/4 then this is what your chart will look like:

Y = X
1 = 0.75
2 = 1.75
3 = 2.75
4 = 3.75
5 = 4.75

Plz mark brainliest

3 0

3 years ago

A student concluded that the inequality -3+2y<4x is equivalent to the inequality y>2x+3/2, as shown below. Describe and co

svlad2 [7]

Step-by-step explanation:

-3+2y<4x

then

2y< 4x+ 3 (add both sides with 3)

y < 2x +3/2 ( divide both sides by 2 that is positif and we do not change the sens < )

Hope you understand.

4 0

3 years ago

Niobium-91 has a half-life of 680 years. After 2,040 years, how much niobium-91 will remain from a 300. 0-g sample? 3 g 18. 75 g

alekssr [168]

Answer:

Amount of Niobium-91 initially

= 300/91 =3.2967mol

2040 years = 3 ×680 = 3 half-lives

therefore, amount left = 0.4121mol

mass of Niobium-91 remaining = 0.4121 ×91 =37.5g

Please give brainliest

8 0

2 years ago