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Alisiya [41]
3 years ago
13

Can someone please help me

Mathematics
2 answers:
Brrunno [24]3 years ago
6 0
Hmmmm...... Are you a 6th grader? I remember doing these in 6th grade.
miv72 [106K]3 years ago
3 0

1. Express the ratio in three different ways (grey and white)

-\frac{2}{5}

-2 to 5

-2:5

2.  *(Integer)*       *(Opposite)*         *(Absolute Value)*                                                                        

         3                        -3                               3

       -4                         4                                4

        8                       -8                                 8

3. Write an expression to represent:

- "A number n divided by 6" = \frac{n}{6} or n÷6

4. Solve. Show your work.

- 27.9+212.5=240.4

- 175.5-12.7=162.8

5. Shade the blocks

- 975÷6=162.5

- 478·38=18,164

1. 4 shirt for 32.00

- Rate: x·32        This rule only happens if there are 4 shirts.

- Unit Rate: \frac{32}{4}=8      It cost $8 for every shirt is bought

2. Write every form from illustration.

- Fraction: \frac{30}{100}=\frac{3}{10}

- Decimal: 0.3

- Ratio: 30:100 or 3:10

- Percentage: 30%

3. What is 50% of 80?

- Your answer is correct

4. Ken grew \frac{4}{5} of an inch last year. Sang grew \frac{3}{8} of an inch. Who grew more and by how much?

- Your answer is correct

5. Complete the table and then graph the coordinates.

- Attachment for this question

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Peter uses cubes to build a figure in shape of the letter X. What is the fewest unit cubes that Peter can use to build the figur
Oksi-84 [34.3K]

Answer:4

Step-by-step explanation:

4 0
3 years ago
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The measure of angle 1 is (3x + 10)° and the measure of angle 4 is (4x – 15)°. Vertical and parallel lines c, d, and e are cut b
Nikitich [7]

Answer:

95 degrees

Step-by-step explanation:

since angles 1 and 4 are vertical angles, they are congruent

3x+10=4x-15

3x-4x=-15-10

-x=-25

x=25

x=25 degrees

angles 4 and 7 are supplementary due to them being alternate exterior angles

lets find the measure of angle 4:

4x-15

4*25-15

100-15

85 degrees

Now, lets find the angle measure of angle 7:

85+x=180

x=180-85

x=95

So, the angle measure of angle 7 is 95 degrees

5 0
3 years ago
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Alchen [17]
I think it’s C not sure tho
5 0
3 years ago
Explain how you determine an equation for a line using a table of input/output values.
Lubov Fominskaja [6]
Example :

            x               y
            1               3
            2               6
            3               9
            4               12

first thing u do is pick any 2 points (x,y) from ur table

(1,3) and (2,6)
now we sub those into the slope formula (y2 - y1) / (x2 - x1) to find the slope
(y2 - y1) / (x2 - x1)
(1,3)....x1 = 1 and y1 = 3
(2,6)...x2 = 2 and y2 = 6
sub
slope = (6 - 3) / (2 - 1) = 3/1 = 3

now we use slope intercept formula y = mx + b
y = mx + b
slope(m) = 3
use any point off ur table...(1,3)...x = 1 and y = 3
now we sub and find b, the y int
3 = 3(1) + b
3 = 3 + b
3 - 3 = b
0 = b

so ur equation is : y = 3x + 0....which can be written as y = 3x...and if u sub any of ur points into this equation, they should make the equation true....if they dont, then it is not correct

and if u need it in standard form..
y = 3x
-3x + y = 0
3x - y = 0 ...this is standard form
6 0
3 years ago
Plutonium-240 decays according to the function Q(t) = Qoe^-kt
LuckyWell [14K]

Answer:

  9990 years

Step-by-step explanation:

The exponential function with given values filled in can be solved for the unknown using logarithms.

__

  Q(t) = 12 = 36e^(-0.00011t)

  1/3 = e^(-0.00011t) . . . . . . divide by 36

  ln(1/3) = -0.00011t . . . . . . take natural logs

  t = ln(1/3)/(-0.00011) . . . . divide by the coefficient of t

  t ≈ 9990 . . . years

5 0
3 years ago
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