Answer:
Number of boys = 675
Step-by-step explanation:
Given that:
There are 5 times as many boys as girls in a school.
Number of pupils in school = 810
Let,
x be the number of girls
y be the number of boys
According to given statement;
x+y=810 Eqn 1
y = 5x Eqn 2
Putting y=5x in the Eqn 1
x+5x=810
6x=810
Dividing both sides by 6
Putting x=135 in Eqn 2
y = 5(135)
y = 675
Hence,
Number of boys = 675
Answer and Step-by-step explanation:
1) - 6.5 r = - 58.5
- r = - 58.5/6.5
- r = - 9
<h2>r = 9 </h2>
2) c - 5.5 = 2.3
c = 2.3 + 5.5
<h2>c = 7.8</h2>
3) 56 = - 5.6s
56/5.6 = - s
10 = - s
- 10 = s
<h2>s = - 10</h2>
4) d/4 = 4.7
d = 4.7 / 1/4
d = 4.7 * 4
<h2>d = 18.8</h2>
5) - 9 = 6.9 + x
- 9 - 6.9 = x
- 15.9 = x
<h2>x = - 15.9</h2>
6) 23.5 = 4.7z
23.5/4.7 = z
5 = z
<h2>z = 5</h2>
7) - 2.7 = v + 4.9
- 2.7 - 4.9 = v
- 7.6 = v
<h2>v = - 7.6</h2>
8) 2.6 = k/3
k/3 = 2.6
k = 2.6 / 1/3
k = 2.6 * 3
<h2>k = 7.8</h2>
9) - 5.6f = 44.8
- f = 44.8/5.6
- f = 8
<h2>f = - 8</h2><h2 />
hope it helps, my friend
Answer:
2 Gallons.
Step-by-step explanation:
If 8 gallons are lost in one hour, then 4 will be lost in 30 minutes. Half of thirty minutes is 15 minutes, and half of 4 is 2.
Answer:
The value of the constant in the equation below is 20.
Step-by-step explanation:
You are given the formula height = constant/width. All you have to do is take one of the points given on the graph and plug it in to the formula.
Example:
1 = Constant/20
Constant = 20
(4b+3) (2b−5)
(4b+3) (2b+−5)
(4b) (2b) + (4b) (−5) +(3) (2b) +(3) (−5)
8b²−20b+6b−15.
= 8b²−14b−15.
