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2 years ago

I need help...... 25 points

Mathematics

2 answers:

Andrews [41]2 years ago

7 0

Answer:

Step-by-step explanation:

ANTONII [103]2 years ago

5 0

Answer:

Step-by-step explanation:

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Which inequality is graphed on the coordinate plane?

bekas [8.4K]

Answer:

Step-by-step explanation:

1:cancel out any answers with equal to since the line is dotted

2:pick any two points of your choice and work out the gradient

3:use the gradient a point on the line and an anonymous point (x,y) to get equation of a line

4:then choose a point (0,0) and substitute x with 0 in the equation to get y (in this case it's -1) which is less than 0 hope it helps

5 0

3 years ago

Dave sold 60 general and reserved tickets for a concert. He sold general tickets for $10 each and reserved tickets for $15 each

swat32

Answer:

The system is of equations is:

$\left\{ \begin{array}{ll} 10g+15r=725 & \quad \\ g+r=60 & \quad \end{array} \right.$

Where g is the amount of general tickets and r is the amount of reserve tickets.

35 general tickets and 25 reserve tickets were sold.

Step-by-step explanation:

Let general tickets be represented by g and reserved tickets be represented by r.

Each general ticket sells for $10 each and reserved tickets $15 each. Dave collected a total of $725. Thus:

$10g+15r=725$

And a total of 60 tickets were sold. Hence:

$g+r=60$

Our system of equations is:

$\left\{ \begin{array}{ll} 10g+15r=725 & \quad \\ g+r=60 & \quad \end{array} \right.$

We can solve by substitution. First, divide both sides of the first equation by 5:

$2g+3r=145$

Next, we can subtract a variable (r in this case) from the second equation:

$g=60-r$

Substitute:

$2(60-r)+3r=145$

Distribute:

$120-2r+3r=145$

Simplify:

$120+r=145$

Subtract:

$r=25$

Using the previous equation:

$g=60-r$

Substitute and evaluate:

$g=60-(25)=35$

So, 35 general tickets and 25 reserve tickets were sold.

4 0

3 years ago

PLS HELP ASAP:Find all the missing elements:

adelina 88 [10]

Answer:

b ≈ 9.5, c ≈ 14.7

Step-by-step explanation:

Using the Sine rule in Δ ABC, that is

$\frac{a}{sinA}$ = $\frac{b}{sinB}$ , substitute values

$\frac{7}{sin23}$ = $\frac{b}{sin32}$ ( cross- multiply )

b × sin23° = 7 × sin32° ( divide both sides by sin23° )

b = $\frac{7sin32}{sin23}$ ≈ 9.5 ( to the nearest tenth )

Also

$\frac{a}{sinA}$ = $\frac{c}{sinC}$

$\frac{7}{sin23}$ = $\frac{c}{sin125}$ ( cross- multiply )

c × sin23° = 7 × sin125° ( divide both sides by sin23° )

c = $\frac{7sin125}{sin23}$ ≈ 14.7 ( to the nearest tenth )

3 0

3 years ago

How many tens are in 20,000 pounds??

Artist 52 [7]

Your answer to this is 200

8 0

3 years ago

Find the common difference for the sequence below. 1/4, 5/16, 3/8,..

vredina [299]

Answer:

the common difference of the sequence is $(\frac{1}{16})$

Step-by-step explanation:

A sequence of numbers is said to be in arithmetic progression of each term of the sequence has same common difference.

Now, here first term a1 = 1/4

Second term a2 = 5/16

Third term a3 = 3/8

Now, Common difference (d) = a2 - a1 = a3 - a2

Now, a2 - a1 = $\frac{5}{16} - \frac{1}{4} = \frac{5 - 4}{16} = \frac{1}{16}$

Now, a3 - a2 = $\frac{3}{8} - \frac{5}{16} = \frac{6 - 5}{16} = \frac{1}{16}$

Hence, the common difference of the sequence is $(\frac{1}{16})$

5 0

2 years ago