MATHEMATICS HIGH SCHOOL

Help me !!! Solve: 3b − 2 = 7

Answers

Answer 1

Answer:

B=3

Step-by-step explanation:

Answer 2

Answer: 3b - 2 = 7
+2 +2
3b = 9
Divide by 3 on both sides...
b = 3

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The dinosaur's ribs and arms are at the intersection of the diagonals shown in the diagram. Compute their equations!First, compute the slopes:

Slope of l:
Slope of m:

Answers

Answer:

Slope of l:

0.5

Slope of m:

✔-0.75

Step-by-step explanation:

Line l:

y - 4 = 0.5(x - 1)

Line m:

y - 5 = -0.75(x - 43)

last part is Line l:

y = 0.5x + 3.5

Line m:

y = -0.75x + 37.25

Answer:

(Did it on edge)

Step-by-step explanation:

Can anyone tell me what the answer is plz

Answers

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

there is no mistake

The graph below shows a scatter plot and the line of best fit relating the ages of children and the total number of times they have visited the doctor.Use the line of best fit to estimate the age of a child who has visited the doctor 40 times.

A. 14 years old
B. 13 years old
C. 12 years old
D. 11 years old

Answers

Answer:

The correct option is C.

Step-by-step explanation:

The graph below shows a scatter plot and the line of best fit relating the ages of children and the total number of times they have visited the doctor.

If a line passes through two points then the equation of line is

$y-y_1=(y_2-y_1)/(x_2-x_1)(x-x_1)$

From the given graph it is clear that the line of best fit passes through the points (0,0) and (3,10). So, the equation of best fit line is

$y-0=(10-0)/(3-0)(x-0)$

$y=(10)/(3)x$ .... (1)

The equation of best fit line is $y=(10)/(3)x$ . Where, x is age in year and y shows the total number of visits to the doctor.

We need to estimate the age of a child who has visited the doctor 40 times.

Substitute y=40 in equation (1), to find the value of x.

$40=(10)/(3)x$

Multiply both sides by 3.

$120=10x$

Divide both sides by 10.

$12=x$

The value of x is 12. It means the age of a child who has visited the doctor 40 times is 12.

Therefore the correct option is C.

The kid is around 12 years old that visits the doctor 40 times

Stonehenge II in Hunt, Texas, is a scale model of the ancient construction in Wiltshire, England.The scale of the model to the original is 3 to 5 . the Alter Stone of the original construction is 4.9 meters tall. write and solve a porportion to find the height of the model of the Alter Stone

Answers

Let the height of the model of the Alter Stone be h.
Then, 3/5 = h/4.9
h = (3 x 4.9)/5 = 2.94

Therefore, the height of the Alter Stone is 2.94 meters

Which is the best estimate for the quotient of 312.21 59.113?a. 5,000
b. 50
c. 5
d. 0.5

Answers

Answer=C

The first step in estimating is to round the numbers into simpler numbers so that we can easily do the math in our head...

312.21 becomes 300

59.113 becomes 60

300÷60=5

Answer=C

Answer=C

312.21 would be 300

59.113 would be 60

300÷60=5
Im pretty sure that is right IDK im in Middle School

1. Determine the constant of variation for the direct variation given.R varies directly with S. When S is 16, R is 80.
1/5
5
16

Answers

$R\ varies\ directly\ as\ S\n\n(R)/(S)=k\n\nk-constant\ of\ variation\n\nk=(80)/(16)=5\n\nAnswer\ is\ 5.$

Answer:

Step-by-step explanation:

Other Questions

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Mark works at a popular electronics retail store. He earns a fixed income of $18 an hour and a 5% commission on the sales he makes. Let's say, y = earnings h = number of hours worked s = amount of sales Which of these equations correctly indicates how much Mark earns in a day? A : y=18h+0.5s B : y=18h+0.05s C : y=h/18+5s D : y=h/18+s/5

P^2 _ p^2 = 7 and p _ q = 2 find the value of p+q

Kara used the linear model y=20000+0.3x to predict her total salary from achieving total sales of x .what is her base salary? what percent commission does she earn