Need help with number 4 and 5

Answer:

[tex]a) \: 5x + 3x + 2y + 4y \\ = 8x + 6y[/tex]

[tex]b) \: 6x - 2x + 8y - 6y \\ = 4x + 2y[/tex]

I hope I helped you^_^

The entire rectangle is 4 square units because the two triangles on the top put together makes the same shape as the square in the middle, which makes it 1 square unit. And the two bigger triangles on the bottom can create two squares if you break them apart and rearrange them again. So all of those shapes put together equals 4 square units.

Answer:

x = 2

Step-by-step explanation:

Answer:

X=2

Step-by-step explanation:

9x+4=3x+16

9x-3x=6x

6x+4=16

16-4=12

12/6=2

Answer:

-3/4 I think sorry if i'm wrong i can't see the rest of the graph to make sure it's totally correct.

Step-by-step explanation:

Answer:

- 25

Step-by-step explanation:

Answer:

hey where I sent I solved it in my notebook

9514 1404 393

Answer:

  the properties of equality tell you so

Step-by-step explanation:

A couple of properties of equality come into play here:

Each of the properties of equality tells you an operation you can perform on an equation without changing the values of the variables that satisfy that equation.

If we start with the equation ...

  5c + 4p = 18.40

and we add 11.20 to both sides, we have not changed the values of the variables that satisfy this equation. This is the addition property of equality.

  (5c +4p) +11.20 = (18.40) +11.20

The substitution property of equality says I can substitute anything for its equal. The second given equation tells me that 2c +4p = 11.20. This means I can use 2c+4p wherever 11.20 might be found without changing any variable values. In the equation we got from addition, we can now make this substitution, and we have ...

  (5c +4p) +(2c +4p) = (18.40) +(11.20)

  7c +8p = 29.60 . . . . . . . collect terms

We obtained this equation using properties of equality that guarantee solutions to these equations are not altered by the process.

_____

*Additional comment

Technically, by doing the "collect terms" step, we have made the assumption that the values of c and p that satisfy the first equation are the same as the values of c and p that satisfy the second equation. This is usually the case we're interested in.

Answer:

Step-by-step explanation:

There are 3 possible scenarios

1) 5 questions from A and 3 questions from B:

2) 4 questions from each part:

3) 3 questions from A and 5 questions from B:

Total number of ways:

Answer:

Student has to do 8 questions such that he does at least 3 questions from both the sets

How can he go about (Set I, Set II)  =(3,5) or (4,4) or (5,3)

So, total number of ways of doing this is given by 

[tex]5c_{3} \times 7c_{5} + 5c_{4} \times 7c _{4} + 5c_{5} \times 7c _{3}[/tex]

[tex] = (10)(21) + (5)(35) + (1)(35) = 210 + 210 = 420[/tex]

(ノ^_^)ノ

Answer:

f(x) = 8x

Step-by-step explanation:

The linear equation given in the form of a table is shown as:

[tex]\left[\begin{array}{ccc}x&f(x)\\3&24\\4&32\\5&40\\6&48\end{array}\right][/tex]

Because the equation is linear, in order to find the equation written in slope-intercept form, divide the rise (f(x)) by the run (x):

24 ÷ 3 = 8

32 ÷ 4 = 8

40 ÷ 5 = 8

48 ÷ 6 = 8

Because the quotient for each relation is 8, the linear equation can be written as f(x) = 8x.

[tex]\\ \sf\longmapsto x+5+x-5=80[/tex]

[tex]\\ \sf\longmapsto 2x=80[/tex]

[tex]\\ \sf\longmapsto x=40[/tex]

Angles are

No sean was wrong

Answer:

Sean is not correct. The answers are 100°, 35° and 45°.

Step-by-step explanation:

In my working, I labeled the part without a variable as a°.

Step 1: a° + 80° = 180° ( angles on a straight line sum up to 180° )

Step 2: a° = 180° - 80°. This is because 80 moves from the left side of the equation to the right side of the equation which affects it's sign( from + to -)

Step 3: a° = 100° . Subtract 80 from 180.

So we know that 100 is correct. Let's find the remaining angles.

Step 4: a° + ( x - 5 )° + ( x + 5 )° = 180° ( angles in a triangle sum up to 180°)

Step 5: 100° + x - 5° + x + 5° = 180°. Fix in the values of each variable correctly. Here we only know the value of variable a.

Step 6: (100° - 5° + 5°) + (x + x) = 180°. Group like terms to make calculations easier.

Step 7: 100° + 2x = 180°. -5+5 is the same as 5-5 which would give you 0. 0 + 100° is 100°.

Step 8: 2x = 180° - 100°. Move like terms to one side.

Step 9: 2x= 80°. Subtract 100° from 180° to get 80°

Step 10: 2x/2 = 80°/ 2. Divide both sides by 2.

Step 11: x= 40°. But this isn't the final answer. This is just the answer for all the x you see in the diagram. So fix in the values correctly.

Step 12: ( x-5° ). State it for your teacher to know which question you are given an answer to. From our calculations, we know that x = 40°.

Step 13: (40° - 5°)

Step 14: ( 35°). 40 minus 5 is 35.

Step 15: 35°. multiply the figure in the bracket by one. We can't leave our answer in the bracket.

Step 16: (x + 5). Using the same knowledge, fix in the values and do as the operation sign says.

Step 17: ( 40° + 5 °)

Step 18: (45°)

Step 19: 45 °

Step 20: Sean is not right because the angles in the triangle are 100°, 35° and 40°.

Answer:

-40

Step-by-step explanation:

-4 * 2 = -8

-8*-1= 8

12+8 = 20

20*(-2) =-40

Answer:

The answer is -40.

Step-by-step explanation:

Use PEMDAS and the distributive property.

9514 1404 393

Answer:

  7.84 to 8.16 ounces

Step-by-step explanation:

The difference between the actual amount in the bottle and the target amount of 8 ounces can be at most 2% of 8 ounces. That amount is ...

  0.02×8 oz = 0.16 oz

The amount in the bottle can be this much higher:

  8 + 0.16 = 8.16 . . . ounces

or, it can be that much lower:

  8 - 0.16 = 7.84 . . . ounces

The range of values the bottle could contain is from 7.84 ounces to 8.16 ounces.

Answer:

Area = 130 ft^2

Step-by-step explanation:

Area =length * width

Perimeter = 2(L + W)

L=3+x

W= x

Perimeter= 2(3+x+x) =2(3 +2x)=6+4x=46 so x=10

L=3 +10= 13

W= 10

Area = 13* 10 130

Answer:

Step-by-step explanation:

We observe two angles and the included side of ABC are congruent to two angles and the included side of DBE:

This is called ASA

Answer:

ASA postulate

Answer C is correct

Step-by-step explanation:

<ACB = < BED (Angle)

AC = DE (Side)

<CAB = < BED = 90° (Angle)

Therefore,

ABC triangle is congruent to DBE triangle according to ASA postulate.

Hope this helps you.

Let me know if you have any other questions :-):-)

Answer:

Shari's hourly rate is $11.25

Step-by-step explanation:

$281.25/x=r

= $281.25/25=r

= $11.25

Step-by-step explanation:

Answer:

276 equals the number of pages in the book

35d  the number of pages she read during 1 week

35 equals the number of pages read in 1 day and the number of pages read in d days

Step-by-step explanation:

Answer:

2%283x%5E3+%2B+2y%5E2%29

2%283%28-2%29%5E3+%2B+2%28sqrt%2812%29%29%5E2%29

2%283%28-8%29+%2B+2%2812%29%29

2%28-24+%2B+24%29

2%280%29

0

So 2%283x%5E3+%2B+2y%5E2%29=0 when x=-2 and y=sqrt%2812%29

Answer:

0

Step-by-step explanation:

The solution is in the attached file

Answer:

3 2/3= 11/3

Step-by-step explanation:

3x3/3=9/3+ 2/3=11/3

(x-4)^2-11

How?

[tex]\\ \sf\longmapsto (x-4)^2-11[/tex]

[tex]\\ \sf\longmapsto x^2-8x+16-11[/tex]

[tex]\\ \sf\longmapsto x^2-8x+5[/tex]

Verified

Answer:

249 + c

Step-by-step explanation:

The total of the 2 years is 249 from last year plus c from this year.

249 + c

Answer:

i think 6 years

Step-by-step explanation:

Answer:

blue and red :>

Step-by-step explanation:

Hello There! :)

Option B

A function must pass the Vertical line test. Draw a line. If it touches the graph more than once, it's a relation. If it touches the graph once, it's a function.

Hope this helps!

Answer:

x = 2

Step-by-step explanation:

Answer:

y = 28.75

x = 26.5

Step-by-step explanation:

I think the amount of the second T-shirts purchased should be 2

Let the cost of each shirt be $ x, and the cost of each sweater be $ y.

Since the cost of each shirt is $ x, the cost of 3 shirts will be $ 3x and the cost of 2 shorts will be $ 2x.

Likewise, cost of each shirt is $ x, so the cost of 2 shirts will be $ 2x and cost of 4 sweaters will be $ 4y.

Andrea was able to buy 3 shirts and 2 sweaters for $113. This means:

         Cost of 3 shirts + Cost of 2 sweaters  = 113

                 Equation 1:       3x + 2y = 113

She was able to buy p shirts and 4 sweaters for $166. This means:

                      2x + 4y = 166

Dividing both sides by 2, we get:

                  Equation 2:    x + 2y = 84                                            

Subtracting Equation 1 from Equation 2, we get:

x + 2y - (3x + 2y) = 166 - 113

x + 2y - 3x - 2y = 53

2x = 53

x = 26.5

Using the value of x, in Equation 2, we get:

26.5 + 2y = 84

2y = 57.5

y = 28.75

Since, x represents the cost of shirt, the cost of each shirt is $ 26.5.

y represents the cost of sweater, so the cost of each sweater is $ 28.75.

Answer:

Y=mx+c

(4,2), (3,5)

answer is -3

Step-by-step explanation:

4=x1 and 2=y1

3=x2 and 5=y2

y2-y1/x2-x1

5-2/3-4

3/-1 or -3

since we are finding the slope,we have to minus the y2 from the y1 over the x2-x1 and we minus then simplify.

-39 is the furthers away from 0

this is because if you draw a number line -16 would be 16 away from 0, 12 would be 12 away from zero and 7 would be 7 away from 0...

| - - - - - - - - - - - - - - - |- - - - - - | - - - - |

16 0 7 12

and -39 would be 39 digits away from 0, therefore its the furthest away from 0

Hope this helped you- have a good day bro cya)

Answer:

-39, or the absolute value of 39 is farthest from 0.

Step-by-step explanation:

-16 is 16 units from 0.

-39 is 39 units from 0.

7 is 7 units from 0.

12 is 12 units from 0.

39 > 16

39 > 7

39 > 12

Hope this helps!