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Pepsi [2]
3 years ago
14

Expand and simplify 4(2y – 7) – 3(5y – 3) I WILL GIVE BRANLIEST!

Mathematics
2 answers:
cricket20 [7]3 years ago
8 0

Answer:

- 7y - 19

Step-by-step explanation:

4(2y – 7) – 3(5y – 3)  \\  \\ 8y - 28 - 15y + 9 \\  \\  = 8y - 15y - 28 + 9 \\  \\  =  - 7y - 19

Leona [35]3 years ago
5 0

Answer:

-7-19

Step-by-step explanation:

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Solve the system of equations for -4x+11y=15 x=2y
mel-nik [20]

Answer:

x = 10 and y = 5

Step-by-step explanation:

We are given:

the system of equations

-4x+11y=15... Equation 1

x=2y....... Equation 2

We substitute 2y for x in Equation 1

-4(2y) + 11y = 15

-8y + 11y = 15

3y = 15

y = 15/3

y = 5

Solving for x

2y = x

2(5) = x

10 = x

Therefore,

x = 10 and y = 5

5 0
3 years ago
You are measuring the height of a statue. You stand 10 feet from the base of the statue. You measure the angle of elevation from
Akimi4 [234]

Answer:

h = (10 ft)(4.01) = 40.1 ft

Step-by-step explanation:

The tangent function relates this elevation to the horizontal distance (10 ft) and the angle of elevation (76 degrees):

                               opp           h

tan 76 degrees = --------- = ------------- = 4.01

                                adj         10 ft

Therefore , h = (10 ft)(4.01) = 40.1 ft

5 0
4 years ago
Read 2 more answers
Jina bought packs of pencils. Each pack has pencils. Write an equation to represent the total number of pencils that Jina bought
qaws [65]

The Answer to this question is 5×4=20

4 0
3 years ago
Plz help me ASAP on this!
nadezda [96]

Answer:

E

Step-by-step explanation:

6 0
4 years ago
What is the curved surface area of a cylinder with the circumference of 4 and height of 6
Vera_Pavlovna [14]

The curved surface area of a cylinder is 24cm²

Given the following data;

Base circumference = 4 cm

Height = 6 cm

<h3>How to find the curved surface area of a cylinder?</h3>

Suppose that:

Radius of the considered cylinder = 'r' units

Height of the considered cylinder = 'h' units

Then, the curved surface area of that cylinder is 2πr h

To find the curved surface area (CSA) of the cylinder we have;

CSA of a cylinder = 2πrh

But 2πr = 4 cm

Now Substituting the values into the equation, we have,

CSA of a cylinder = 6 x 4

CSA of a cylinder = 24 cm²

Hence, The curved surface area of a cylinder is 24cm²

Learn more about surface area of a cylinder here:

brainly.com/question/11385509

#SPJ1

7 0
1 year ago
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