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3 years ago

HELP ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics

1 answer:

Genrish500 [490]3 years ago

6 0

Answer:

Well, I don't know how to graph it for you, but the slope is -2/3 and the point is (-9, 5). So, when you graph it, from the point (-9, 5), you can go 3 units to the right and 2 units down.

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Rebecca Wilson was the top scorer in a women's professional basketball league for the 2006 regular season, with a total of 846

RUDIKE [14]

Answer:

Number of two point goals = 169

Number of three point goals = 123

Number of free throws = 139

Step-by-step explanation:

Let the number of two point goals = $x$

Let the number of three point goals = $y$

Let the number of free throws = $z$

As per the given statements:

$x = 2y-77 ...... (1)$

$z = x-30 ...... (2)$

Using equation (1):

$z = 2y-107$ ...... (3)

Total number of points from two point goals = $2x$

Total number of points from three point goals = $3y$

Total number of points from free throws = $z$

$2x+3y+z=846$

using (1) and (3):

$2(2y-77)+3y+2y-107=846\\\Rightarrow 4y-154+5y-107=846\\\Rightarrow 9y-261=846\\\Rightarrow 9y=846+261\\\Rightarrow 9y=1107\\\Rightarrow y =123$

By (1):

$x = 2\times 123-77 =169$

By (3):

$z =2\times 123-107 = 139$

So, answers are:

Number of two point goals = 169

Number of three point goals = 123

Number of free throws = 139

3 0

2 years ago

A dozen tomatoes cost 1.56. how many does one tomatoes cost

Gelneren [198K]

You divide 12 by 1.56 because a dozen is 12 of something. This gives you about 8 cents per

7 0

3 years ago

Read 2 more answers

Two mechanics worked on a car. The first mechanic worked for 15

nevsk [136]

Answer: For the sum of 130

First: $90

Second: $40

Step-by-step explanation:

We write equations for each part of this situation.

The Total Charge

Together they charged 1550. This means 1550 is made up of the first mechanics rate for 15 hours and the second's rate for 5 hours. Lets call the first's rate a, so he charges 15a. The second's let's call b. He charges 5b. We add them together 15a+5b=1550.

The Sum of the Rates

Since the first's rate is a and the second is b, we can write a+b=130 since their sum is 130.

We solve for a and b by substituting one equation into another. Solve for the variable. Then substitute the value into the equation to find the other variable.

For a+b=130, rearrange to b=130-a and substitute into 15a+5b=1550.

15a + 5 (130-a)=1550

15a+650-5a=1550

10a+650-650=1550-650

10a=900

a=$90 was charged by the first mechanic.

We substitute to find the second mechanic's rate.

90+b=130

90-90+b=130-90

b= $40 was charged by the second mechanic

5 0

2 years ago

WhatDidHeSayyyy> ok well do u mind and help a girl out with this plz

Firlakuza [10]

The value of x = 18

explanation:

12/x = 6/9
x = 18

7 0

2 years ago

Read 2 more answers

In a set of 25 aluminum castings, four castings are defective (D), and the remaining twenty-one are good (G). A quality control

lianna [129]

Answer:

The sample space for selecting the group to test contains 2,300 elementary events.

Step-by-step explanation:

There are a total of N = 25 aluminum castings.

Of these 25 aluminum castings, n₁ = 4 castings are defective (D) and n₂ = 21 are good (G).

It is provided that a quality control inspector randomly selects three of the twenty-five castings without replacement to test.

In mathematics, the procedure to select k items from n distinct items, without replacement, is known as combinations.

The formula to compute the combinations of k items from n is given by the formula:

${n\choose k}=\frac{n!}{k!(n-k)!}$

Compute the number of samples that are possible as follows:

${25\choose 3}=\frac{25!}{3!\times (25-3)!}$

$=\frac{25\times 24\times 23\times 22!}{3!\times 22!}\\\\=\frac{25\times 24\times 23}{3\times 2\times 1}\\\\=2300$

The sample space for selecting the group to test contains 2,300 elementary events.

6 0

3 years ago