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3 years ago

Section 1 - Question 1

Mathematics

1 answer:

Morgarella [4.7K]3 years ago

3 0

Answer:

a and bwhich step did he make his first error simplifying the expression?

Step

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What is .825 as a fraction and how do I find it

JulsSmile [24]

$0.1 = \frac{1}{10}
$
$0.01 = \frac{1}{100}

$
$0.001 = \frac{1}{1000}$

hence
$0.825 = \frac{825}{1000}$

now you just simplify the fraction

6 0

3 years ago

Please help me!!!!!!!!!

ASHA 777 [7]

Fraction= x/6

x=numerator

x/6=1/3
x=6(1/3)
x=6/3=2

answer: 2/6

to check
2/6=0.3333...
1/3=0.3333...

8 0

3 years ago

Adult tickets to the fall play cost $8 and student tickets cost $4. the drama class sold 20 more adult tickets than student tick

Ganezh [65]

Let a = Adult tickets, s = Student tickets; we are going to set up a system of equations.

8a + 4s = 880
a - s = 20

We are going to multiply the second equation by so that we can cancel out one of the variables and solve for the other. This gives you:

8a + 4s = 880
4a - 4s = 20

Notice the s-variables will cancel:

12a = 900
a = 75

Now we plug in the amount of adult tickets to solve for the student ones.

75 - s = 20
- s = - 55

Divide both sides by - 1
s = 55.

There were 55 student tickets sold and 75 adult tickets.

6 0

3 years ago

7-Eleven sells phone for $80 and charges $0.15 to send a text. which equation shows the total cost, C, of sending "t" texts?

wolverine [178]

I think it is b and the total cost is 86.75

4 0

3 years ago

3.0

Alex73 [517]

Answer:

Solution given:

AD=1.8

AC=3.0

we have

∆ADC is a right angled triangle

Cos A=b/h

<A=cos-¹ (1.8/3)

<A=53.13°

again

∆ABC is a right angled triangle

Tan A=p/b=BC/AC

Tan 53.13×3=BC

BC=4

NOW

Area of triangle =½(AC*BC)=½(4×3)=6 square units is a required area.

3 0

3 years ago