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2 years ago

Which equation best describes the line of best fit?

Mathematics

1 answer:

Andrej [43]2 years ago

8 0

The y-value changes from 10 to 70 as the x-value changes from 0 to 10. That makes the slope (70 -10)/(10 -0) = 6, and the y-intercept = 10.

Selection A is the appropriate equation.

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Which investor has made a short term investment in this senario. Thomas sofia and aaron work together and they've each recently

jeka57 [31]

Answer:

Sofia bought some Treasury bonds that mature in nine months.

Step-by-step explanation:

it matures in only 9 months

3 0

3 years ago

A chorus has 5 girls and 15 boys. If two are chosen at random to sing a duet, what is the probability that both will be boys?

Sonbull [250]

Answer:

Step-by-step explanation:

If you ad them together you get 20 15/20 are boys 15 divided by 20 is .75

8 0

2 years ago

Read 2 more answers

Solve using square roots 3x^2+25=73

seropon [69]

Heya !

Given expression -

$3 {x}^{2} + 25 = 73$

Subtracting 25 both sides ,

$3 {x}^{2} + 25 - 25 = 73 - 25 \\ \\ 3 {x}^{2} = 48$

Dividing by 3 on both sides ,

$\frac{3 {x}^{2} }{3} = \frac{48}{3} \\ \\ {x}^{2} = 16$

Therefore ,
$x = + \: 4 \: \: \: \: or \: \: - 4 \: \: \: \: \: \: \: Ans.$

4 0

3 years ago

Alaina is selling wreaths and poinsettias for her chorus fundraiser. Wreaths cost $27 each poinsettia cost $20 each. If she sold

marishachu [46]

Answer:

The number of wreaths Alaina sells is 9 .

Step-by-step explanation:

As given

Alaina is selling wreaths and poinsettias for her chorus fundraiser.

Wreaths cost $27 each poinsettia cost $20 each.

If she sold 15 poinsettias and made $543.

Let us assume that the number of wreaths Alaina sells = x

As the number of poinsettias Alaina sells = 15

Than the equation becomes

27x + 15 × 20 = 543

27x + 300 = 543

27x = 543 - 300

27x = 243

$x = \frac{243}{27}$

x = 9

Therefore the number of wreaths Alaina sells is 9 .

4 0

3 years ago

molly school is selling tickets to the fall musical. on the first day of the ticket sales the school sold 13 adults tickets and

tester [92]

Answer:

Adult Ticket Price = $13

Child Ticket Price = $13

Step-by-step explanation:

Let price of adult ticket be "a" and child ticket be "c"

13 adult and 14 child equals $351, so we can write:

13a + 14c = 351

and

2 adult and 7 child equals $117, thus we can write:

2a + 7c = 117

We multiply 2nd equation by (-2) to get:

-2 * [2a + 7c = 117]

= -4a -14c = -234

Adding botht he "bold" equations, we get:

13a + 14c = 351

-4a -14c = -234

------------------------

9a = 117

a = 117/9 = 13

Now to find b, we use the value of a gotten in the first equation:

13a + 14c = 351

13(13) + 14c = 351

169 + 14c = 351

14c = 182

c = 182/14 = 13

Hence,

<em>Adult Ticket Price = $13</em>

<em>Child Ticket Price = $13</em>

3 0

3 years ago