Last month, a car dealership sold 80 cars. Of all the cars sold, 15% of them were red. How many cars that were sold were red?

Answer:

student A: the third step, they subtracted 16 squared from 24 squared, without figuring out what the squared values were.

student B: is correct

student C: step four, they didn't find the square root of 320, they kind of just took the square off of b and called it good.

Step-by-step explanation:

i hope this helps :)

Answer:

Net for the prism will have 3 rectangles with dimensions 5 by 15, 12 by 15 , and 13 by 15, and 2 triangles with legs 5 inches and 12 inches.

The correct net is net a.

Surface area = sum of areas of the three rectangles and sum of the two triangles.

SA = (5 x 15) + (12 x 15) + (13 x 15) + (5 x 12) = 75 + 180 + 195 + 60 = 510 square inches.

Step-by-step explanation:

Hope this helped

9514 1404 393

Answer:

Step-by-step explanation:

Your calculator can do this, but it's probably faster to do it in your head.

  [tex]\left|\begin{array}{cc}a&b\\c&d\end{array}\right|=ad-cb[/tex]

__

  [tex]\left|\begin{array}{cc}3&-1\\-3&4\end{array}\right|=(3)(4)-(-3)(-1)=9\\\\ \\\left|\begin{array}{cc}8&-1\\-4&-1\end{array}\right|=(8)(-1)-(-4)(-1)=-12[/tex]

And the next two rows are ...

  (-12)(5) -(12)(-1) = -48   —   (2)(-1) -(2)(-1) = 0

  (0)(4) -(17)(-1) = 17   —   (1)(1) -(0)(0) = 1

Answer:

b

Step-by-step explanation:

b

Answer:

x = 6

Step-by-step explanation:

3x - 7 = 11

3x = 11 + 7

3x = 18

x = 6

Answer:

464

Step-by-step explanation:

Find other angle:

<B = 180 - 165 - 11 = 4

Then plug in (opposite sides go together):

[tex]\frac{a}{sin 11}[/tex] = [tex]\frac{630}{sin 165}[/tex]

[tex]a = \frac{630 sin 11}{sin 165} = 464.454 = 464[/tex]

The length of side a in ΔABC is 460 inches.

A triangle is a three-sided closed-plane figure formed by joining three noncolinear points. Based on the side property triangles are of three types they are Equilateral triangle, Scalene triangle, and Isosceles triangle.

We know the sine rule of ΔABC which is a/sinA = b/sinB = c/sinC.

Given, In ΔABC, c = 630 inches, ∠C=165° and ∠A=11°.

∴ a/sinA = c/sinC.

a/sin11° = c/sin165°.

a/0.19 = 630/0.26.

a = (630×0.19)/0.26.

a = 460.

learn more about sine rule triangles here :

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Answer:

3 tons, 1110 pounds

Step-by-step explanation:

A Ton weighs 2000 pounds, first convert the 4 tons.

You can solve this by multiplying 4 times 2000, and you will get 8000.

Now Add 8000 to 422, and your solution: 8422.

Now subtract 8422 by 1312, and you will get 7110.

Now convert this back to tons, start thinking, how many times can 2000 go into 7110.

That would be 3 my good sir.

Your Remainder: 1110 Pounds

Your Answer: 2 Tons, And 1110 Pounds.

Hope It Helps!

Given:

M=-5 and (-3,-2).

To find:

The equation in the form [tex]y=mx+b[/tex].

Solution:

The slope intercept form of a line is

[tex]y=mx+b[/tex]          ...(i)

where, m is slope and b is y-intercept.

We have m=-5. Putting m=-5 in (i), we get

[tex]y=-5x+b[/tex]          ...(ii)

We have a point (-3,-2). Putting x=-3 and y=-2 in (ii), we get

[tex]-2=-5(-3)+b[/tex]

[tex]-2=15+b[/tex]

[tex]-2-15=b[/tex]

[tex]-17=b[/tex]

So, the value of b is -17.

Putting b=-17 in (ii), we get

[tex]y=-5x+(-17)[/tex]

[tex]y=-5x-17[/tex]

Therefore, the required equation is [tex]y=-5x-17[/tex].

Answer:

[tex]Q+S-T = (7m + 3n) + (n + 5) - ( - m - 3n + 8) \\ = (7 + 1)m + (3 + 1 + 3)n + (5 - 8) \\ = 8m + 7n - 3[/tex]

Step-by-step explanation:

this is the correct answer

Answer:

2641.80

Step-by-step explanation:

hope that helps :))

Answer:

500000

Step-by-step explanation:

Answer:

D. 26

Step-by-step explanation:

A = base x height

A = 9 x 4

A = [tex]36m^{2}[/tex]

Answer:

[tex] 36\: m^2 [/tex]

Step-by-step explanation:

Area of parallelogram

= base * height

= 9*4

= 36 square m

Answer:

Step-by-step explanation:This Ratio Division Calculator allows you to divide an amount by a specific ratio. ... Alternatively, you can enter separate ratios for multi share ratio split of the ... 50% is a ratio expressed as a percentage; ½ is a ratio expressed as a fraction.

In the ratio of 3:7, the numbers are 15 and 35.

A ratio is a numerical relationship showing how often one value includes or is included inside another. It is used to compare two numbers.

Given:

A ratio of 3:7.

To share 50 in the ratio 3:7;

[tex]= 50\cdot\frac{3}{3+7} \ {and}\ {50\cdot\frac{7}{3+7}[/tex]

[tex]= 50\cdot\frac{3}{3+7} \ {and}\ {50\cdot\frac{7}{3+7}[/tex]

= [tex]50\cdot\frac{3}{10} \ {and}\ {50\cdot\frac{7}{10}[/tex]

= 5 x 3 and 5 x 7

= 15 and 35

Therefore, the numbers are 15 and 35.

To learn more about the ratio;

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Answer:

We know that the measure of each side is:

5.2cm to 1 decimal place.

Then we can assume that the error is 0.05cm (half of the second decimal place).

With this, the interval of the length of each side will be:

(5.2cm - 0.05cm) = 5.15cm  (as the minimum)

(5.2cm + 0.05cm) = 5.25cm (as the maximum)

Then the interval is (5.15cm, 5.25cm)

2) We know that the perimeter of a square of sidelength L is:

P = 4*L

In this case, the minimum perimeter will be if we choose the smallest sidelength, this is:

P = 4*5.15cm = 20.6cm

And the maximum perimeter can be:

P = 4*5.25cm = 21cm

Then the interval is: (20.6cm, 21cm)

Here we can see that the error for the perimeter is 0.2cm, which is equal to 4 times the error of the length of a side (0.05cm) , as expected.

Answer:

25a-20

Step-by-step explanation:

15a+10a-20=

25a-20

Answer:

A student studies the graph shown below and determines that the reflection of point A over the x-axis will result in a point at (6, 3). State whether or not the student is correct, and explain how the correct answer can be found or confirmed.

Step-by-step explanation:

Answer:

The (x1, y1) and (x2, y2) can be switched in the Distance Formula.

Answer: C

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

Answer:

wow 13 point yay

Step-by-step explanation:

Answer:

x=82

Step-by-step explanation:

Step 1: Cross-multiply.

Step 2: Divide both sides by 19.

x/38=41/19

Answer:

I would personally say Florida. When looking at things such as race, NYC has many races, and New York has very different neighborhoods and lifestyles.

In Florida, most people are more laid back, and there are not that many differences in race and other aspects.

Answer:

C

Step-by-step explanation:

Just took the test.

Answer:

C. The leaders may underestimate overall support because many residents who support the plan may be less likely to respond.

Step-by-step explanation:

Edge 2021

Answer:

18 is its area

Step-by-step explanation:

Answer:

x=0.75

Step-by-step explanation:

Hope this helps!

Step-by-step explanation:

9 1/5=46/5 ; 7 1/2=15/2

common denominator is 10

46/5-15/2=( 92-75)/10= 17/10= 1 7/10 feet= 1.7 feet