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3 years ago

Mr shen likes for his homework assignment to have 2 addition problems for every 3 subtraction problems

Mathematics

2 answers:

svetlana [45]3 years ago

7 0

Answer: All you have to do is think to yourself it’s 2 out of 3

Step-by-step explanation:

UkoKoshka [18]3 years ago

6 0

Answer:

Options B, C and D are correct choices.

Step-by-step explanation:

Please consider the complete question.

Mr. Shen likes for his homework assignments to have 2 addition problems for every 3 subtraction problems.

Which of the following homework assignments could

Mr. Shen create?

Choose 3 answers:

A. 3 addition problems and 4 subtraction problems .

B. 6 addition problems and 9 subtraction problems .

C. 16 addition problems and 24 subtraction problems.

D. 8 addition problems and 12 subtraction problems.

E. 15 addition problems and 10 subtraction problems.

To solve our given problem, we need to find the number that have same ratio.

Let us compare each ratio.

A. $\frac{3}{2}\neq \frac{4}{3}$

Since the ratio of corresponding numbers is not same, therefore, option A is incorrect.

B. $\frac{6}{2}=\frac{9}{3}$

$3=3$

Since the ratio of corresponding numbers is same, therefore, option B is the correct choice.

C. $\frac{16}{2}=\frac{24}{3}$

$8=8$

Since the ratio of corresponding numbers is same, therefore, option C is the correct choice.

D. $\frac{8}{2}=\frac{12}{3}$

$4=4$

Since the ratio of corresponding numbers is same, therefore, option D is the correct choice.

E. $\frac{15}{2}\neq \frac{10}{3}$

Since the ratio of corresponding numbers is not same, therefore, option E is incorrect.

You might be interested in

Find the equation of the median shown:

qwelly [4]

Hey there! I'm happy to help!

The median is the line cutting the triangle in this graph. In general, a median connects any of the triangle points to halfway across the side opposite to that point. This median connects R to halfway across the side across from R.

We want to find the equation of this median. We see that T is at (-2,3) and R is (3,-3). The first thing to do when looking for the equation of the line is to find the slope, or incline. Since we have two points, we can do this very easily. You simply divide the difference in the y-values by the difference in the x-values.

DIFFERENCE IN Y-VALUES

3-(-3)

3+3

DIFFERENCE IN X-VALUES

-2-3

-5

Now, we divide the two answers, giving us -6/5.

So, we have our slope, which gives us the equation so far y=-6/5x+b. We just need to find the b, which is our y-intercept. Well, to do this, we plug in one of our points and we can solve for b. We will use (3,-3)!

-3=-6/5(3)+b

-3=-3 3/5+b

We add 3 3/5 to both sides to isolate the b.

b=3/5

This means that this median should hit the y-axis at (0,3/5), and it looks like it does. Therefore, the equation of this median is y=-6/5x+3/5.

Now you can find the slope of a median! Have a wonderful day! :D

8 0

4 years ago

ASAP HELP FOR NUMBER 13!!

horrorfan [7]

Problem 13a

Each column of the table represents an (x,y) pairing. The first column has x = 0 and y = 2 so (0,2) is one point on this line. Since x = 0 here, this means that we have the y intercept. The y intercept is 2. We'll use this later.

Another point on this line is (3,8) which is drawn from the second column.

Use the two points (0,2) and (3,8) to find the slope m
m = (y2-y1)/(x2-x1)
m = (8-2)/(3-0)
m = 6/3
m = 2

Since the slope is 2 and the y intercept is 2 (see above), this means m = 2 and b = 2

Plug those into y = mx+b and we get y = 2x+2

Answer: y = 2x+2

==============================================
Problem 13b

(0,20) is on the line as the first column shows. The y intercept is 20 since x = 0 here. So b = 20

Another point on this line is (3,8) as drawn from the second column

Slope:
m = (y2-y1)/(x2-x1)
m = (8-20)/(3-0)
m = -12/3
m = -4

Use the slope (m = -4) and the y intercept (b = 20) to get...
y = mx+b
y = -4x+b ... replace m with -4
y = -4x+20 ... replace b with 20

Answer: y = -4x+20

==============================================
Problem 13c

(2,5) and (4,8) are on the line. These two points are drawn from columns 1 and 2 respectively.

Slope
m = (y2-y1)/(x2-x1)
m = (8-5)/(4-2)
m = 3/2
m = 1.5

Note: the fraction 3/2 is equivalent to the decimal form 1.5

Use the slope m = 1.5 along with (x,y) = (2,5) to find the value of b
y = mx+b
y = 1.5x+b ... m is replaced with 1.5
5 = 1.5*2+b ... plug in (x,y) = (2,5)
5 = 3+b
5-3 = 3+b-3
2 = b
b = 2

So we can now update y = mx+b to y = 1.5x+2

Answer: y = 1.5x+2

Note: If your teacher wants a fraction instead of a decimal (for the slope), then you would write $y = \frac{3}{2}x+2$
==============================================
Problem 13d

(0,20) is on the line. So the y intercept is 20, indicating that b = 20

(3,11) is also on the line

Again as done with 13a-13c, I'm only looking at the first two columns.

Slope
m = (y2-y1)/(x2-x1)
m = (11-20)/(3-0)
m = -9/3
m = -3

Therefore
y = mx+b
turns int
y = -3x+20
after replacing m and b with the values we found earlier

Answer: y = -3x+20

6 0

4 years ago

What is the mean of 5, 8, 16, 22, 19, 27, 32? (Round to the nearest whole number.)

Artyom0805 [142]

Answer:

B) 18.

Step-by-step explanation:

Add them up then divide by the amount of numbers there are.

7 0

4 years ago

Read 2 more answers

The label on a can of lemonade gives the volume of 12 fl oz. or 355 mL. Verify that these two measurements are nearly equivalent