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Oxana [17]
3 years ago
15

3 Simplify the expression below: 20 – 10y – 7y + 9

Mathematics
2 answers:
iren2701 [21]3 years ago
7 0
In order in simplified form is -17y + 29
andre [41]3 years ago
5 0

Answer:

y = 1.705882353

Step-by-step explanation:Combine like terms: 20 + 9 = 29

29 + -10y + -7y = 0

Combine like terms: -10y + -7y = -17y

29 + -17y = 0

Solving

29 + -17y = 0

Solving for variable 'y'.

Move all terms containing y to the left, all other terms to the right.

Add '-29' to each side of the equation.

29 + -29 + -17y = 0 + -29

Combine like terms: 29 + -29 = 0

0 + -17y = 0 + -29

-17y = 0 + -29

Combine like terms: 0 + -29 = -29

-17y = -29

Divide each side by '-17'.

y = 1.705882353

Simplifying

y = 1.705882353

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What is the nth term for 7,11,15,19
Murrr4er [49]

Answer:

a_{n} = 4n + 3

Step-by-step explanation:

Note there is a common difference d between consecutive terms, that is

d = 11 - 7 = 15 - 11 = 19 - 15 = 4

This indicates the sequence is arithmetic with n th term

a_{n} = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Here a₁ = 7 and d = 4, thus

a_{n} = 7 + 4(n - 1) = 7 + 4n - 4 = 4n + 3

5 0
3 years ago
Answer please with the work thank you. Who ever answers geta the brainlest answer!​
vodomira [7]

Answer:

6

Step-by-step explanation:

cassie is going up 3 and then down 5

8 + 3=11

11-5= 6

8 0
3 years ago
what is the measure of the vertex angle of an isosceles triangle i’d one of its base angles measures 42°
Naya [18.7K]

The measure of the vertex angle of the isosceles Δ is 96°

Step-by-step explanation:

In the isosceles triangle

  • Two sides are equal in lengths
  • The angle between the two equal sides is called vertex angle
  • The other two angles are called base angles
  • The base angles are equal in measure

∵ The measure of one of the base angles of an isosceles Δ = 42°

- The base angles are equal in measure

∴ The measure of the other base angle = 42°

∵ The sum of the measures of the interior angles of any Δ = 180°

∴ 42 + 42 + measure of the vertex angle = 180

∴ 84 + measure of the vertex angle = 180

- Subtract 84 from both sides

∴ measure of the vertex angle = 96°

The measure of the vertex angle of the isosceles Δ is 96°

Learn more:

You can learn more about the triangles in brainly.com/question/6530759

#LearnwithBrainly

8 0
3 years ago
I WILL MARK BRAINLIEST IF U SHOW WORK !!
JulsSmile [24]

Answer:

11 weeks

Step-by-step explanation:

25 divided by 5 = 5

So she saves 5 dollars a week meaning 5 x 11 = 55

7 0
3 years ago
Read 2 more answers
In the figure AB is parallel to CD. BC is parallel to AE. angle ABD measures (3x+4). angle BCD measures (6x-8). angle EDF measur
Elanso [62]

Answer:

The measure of angle BCD is 68.5\°

Step-by-step explanation:

step 1

Find the value of x

we know that

m -----> form a straight line

substitute the values

(3x+4)\°+(6x-8)\°+(7x-20)\°=180\°

(16x-24)\°=180\°

16x=180\°+24\°

16x=204\°

x=12.75\°

step 2

Find the measure of angle BCD

m

substitute the value of x

m

6 0
3 years ago
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