All categories

3 years ago

A class of 19 pupils have five more girls than girls. Let n =the number of boys

1 answer:

3 0

NO. of students = 19
Boys = n
Girls = n+5

Equation formation
n + n + 5 = 19
2 n + 5 = 19
2 n = 19 - 5
2 n = 14
n = 7

Boys = 7
Girls = 7 + 5 = 12

You might be interested in

Evaluate 16^1/2 and show work

LUCKY_DIMON [66]

Here is your answer

${16}^{1/2} = ({4}^{2})^{1/2}\\= {4}^ {2× 1/2}\\= 4$

HOPE IT IS USEFUL

4 0

3 years ago

Jason leaves Detroit at 2:00 PM and drives at a constant speed west along I-96. He passes Ann Arbor, 40 mi from Detroit, at 2:50

Vladimir [108]

Answer:

d = 48t will represent the distance 'd' traveled in 't' hours.

Step-by-step explanation:

Jason leaves Detroit at 2:00 PM and passes through Ann Arbor at 2:50 PM which is 40 mi distant from Detroit.

Speed during this journey was constant.

Jason traveled 40 mi in 50 minutes or $\frac{5}{6}$ hours from Detroit to Ann Arbor.

By the formula,

Speed = $\frac{\text{Distance traveled }}{\text{Time taken to travel this distance}}$

Speed = $\frac{40}{\frac{5}{6}}$

= 48 mi per hour

If he travels 'd' miles in 't' hours then by the formula of speed,

48 = $\frac{d}{t}$

d = 48t

7 0

4 years ago

PLEASE HURRY!!!!II WILL MARK BRAINLEST

prisoha [69]

Answer:

Step-by-step explanation:

To evaluate the expression substitute t = 4 into the expression, that is

8/t = 8/4 =2

7 0

3 years ago

Read 2 more answers

What is the slope of the line represented by the equation y= x/6-5?

Alexxandr [17]

Slope of <span>y= x/6-5 = 1/6</span>

4 0

3 years ago

In circle O, AP = √10, PB = x and BC = 3. Find the value of x.

Artyom0805 [142]

Answer:

The value of x is $2\ units$

Step-by-step explanation:

we know that

Applying the tangent-secant theorem

$AP^{2}=PB*PC$

substitute the values and solve for x

$\sqrt{10}^{2}=x*(x+3)$

$10=x^{2}+3x$

$x^{2}+3x-10=0$

using a graphing tool

to solve the quadratic equation

The solution is $x=2\ units$

see the attached figure

7 0

4 years ago