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BARSIC [14]
3 years ago
5

In the diagram of parallelogram ABCD, if DB = 5x + 2 and ED = 4x - 8, what is EB?

Mathematics
1 answer:
Karolina [17]3 years ago
5 0

Answer:

5x+2−(4x−8)

Distribute the Negative Sign:

=5x + 2 + −1(4x−8)

=5x + 2 + −1(4x) + (−1)(−8)

=5x + 2 + −4x + 8

Combine Like Terms:

=5x + 2 + −4x + 8

=(5x + −4x) + (2+8)

=x + 10

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Diana received 300 votes in the election for student council president. That was 60% of the students who voted in the election.
Helen [10]

Answer:

500 students.

Step-by-step explanation:

300 votes is 60%.

100%-60% is 40%

so 40% voted for the other person.

Work backwards:

x * 0.6=300

0.6x=300

x=300/0.6 which is 500.

500*0.4 is 200.

300+200 is 500.

Hope this helps :) I am terribly sorry if it is wrong or not using the number line.

7 0
3 years ago
nikki grows 12 tomato plants. she measures their heights to the nearest centimetre, and writes them down. Complete the frequency
sdas [7]

Answer:

Nikki grows 20 tomato plants and she measures their heights.

We want to complete the frequency table.

All we have to do is count the number of values that fall between each range.

The values are:

5  10  12  16  14

17  20  15  10  7

13  11  6  18  15

6  12  17  8  12

  Height              Frequency

-> 5 ≤ h < 10             5

10 ≤ h < 15                8

15 ≤ h < 20               6

20 ≤ h < 25               1

5 0
4 years ago
Multiply. (3x - 2)(x + 5) A: 3x² + 17x - 7 B: 3x² + 17x - 10 C: 3x² + 13x - 10 D: 3x² + 6x - 7
Bess [88]

Answer:

The answer is C.

Step-by-step explanation:

You have to use Ditributive Law,

a(m + n) = am + an

So for this question :

(3x - 2)(x + 5)

= 3x(x) + 3x(5) - 2(x) - 2(5)

= 3 {x}^{2}  + 15x - 2x - 10

= 3 {x}^{2}   + 13x - 10

6 0
4 years ago
Read 2 more answers
Solve the following inequality and name two values that are part of the solution
antiseptic1488 [7]

Answer:

-7 < x

Name 2 values

0 and 10

Any number greater than -7 will work

Step-by-step explanation:

-4 < 2(x + 5)

Divide each side by 2

-4/2 < 2/2(x + 5)

-2 < (x + 5)

Subtract 5 from each side

-2-5 < x+5-5

-7 < x

Name 2 values

0 and 10

Any number greater than -7 will work

4 0
3 years ago
Read 2 more answers
Determine whether 5x^3 – 25y is a polynomial. If so, which type?
kotykmax [81]

Answer:

B polynomial; binomial

Step-by-step explanation:

Yes, it is a polynomial, as it has two terms therefore it is a binomial.

4 0
3 years ago
Read 2 more answers
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