1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Gelneren [198K]
3 years ago
12

Please help it's due today!!!!!!

Mathematics
1 answer:
BlackZzzverrR [31]3 years ago
6 0

Answer:

See Below

Step-by-step explanation:

We are given 3 equations.

3x + 8

5x - 20

and

5x + 4y

First lets solve for x using the first two

3x + 8 = 5x -20

Move the variables to one side

3x + 8 = 5x -20

-3x        -3x

8 = 2x -20

+20     +20

28 =2x

28/2 =2x /2

14 = x

Now we have x = 14

Lets plug this into the second equation to solve for the angle

3(14) + 8

42 + 8 = 50

5(14) - 20

70 - 20 =50

Now, lets plug the x and the angle into the third equation to find y

5 (14) +4y = 50

70 + 4y = 50

-70           -70

4y = -20

4y/4 = -20/4

y = -5

So now we have:

x = 14

y = -5

and the angle = 50

Hope this helps!

You might be interested in
Bryan paid $136.00 for an item at the store that was 20% off the original price. What was the original price?
Dennis_Churaev [7]
The original price was $270.00
4 0
3 years ago
Consider the following operations on the number 8.82 x 10^-2. Without using a calculator, decide which would give a significantl
Ksenya-84 [330]

Correct question is;

Consider the following operations on the number 8.85 x 10^(-2). Without using a calculator, decide which would give a significantly smaller value than 8.85 x 10^(-2), which would give a significantly larger value, or which would give essentially the same value.

A) 8.85 × 10^(-2) + 6.69 × 10^(5)

B) 8.85 x 10^(-2) - 6.69 x 10^(5)

C) 8.85 x 10^(-2) x 6.69 x 10^(5)

D) 8.85 × 10^(-2) ÷ 6.69 × 10^(5)

Answer:

Option A & B yield essentially the same value.

Option C yields a significantly smaller value

Option D yields a significantly larger value

Step-by-step explanation:

Since given value for the operations is in 10^(-2) indices, then let's convert the operations numbers from 10^(5) indices to 10^(-2).

Thus;

6.69 × 10^(5) = (6.69 × 10^(-7)) × 10^(-2)

Thus;

A) 8.85 × 10^(-2) + 6.69 × 10^(5) is now;

8.85 × 10^(-2) + ((6.69 × 10^(-7)) × 10^(-2))

This gives;

[8.85 + (6.69 × 10^(-7))] × 10^(-2)

The 10^(-7) indices indicates that the initial value of 8.85 × 10^(-2) would not change much and would essentially be the same

B) 8.85 x 10^(-2) - 6.69 x 10^(5) is now;

8.85 × 10^(-2) - ((6.69 × 10^(-7)) × 10^(-2))

This gives;

[8.85 - (6.69 × 10^(-7))] × 10^(-2)

Again the 10^(-7) indices indicates that the initial value of 8.85 × 10^(-2) would not change much and would essentially be the same.

C) 8.85 x 10^(-2) x 6.69 x 10^(5) is now;

(8.85 × 10^(-2)) × ((6.69 × 10^(-7)) × 10^(-2))

This gives;

[8.85 × (6.69 × 10^(-7))] × 10^(-2)

When we multiply 8.85 by 6.69 × 10^(-7), the value gotten will be way lower than the initial value of 8.85.

Thus,this operation will give a significantly smaller value.

D) (8.85 × 10-2) ÷ (6.69 × 10^5) is now;

(8.85 × 10^(-2)) ÷ ((6.69 × 10^(-7)) × 10^(-2))

This gives;

[8.85 ÷ (6.69 × 10^(-7))] × 10^(-2)

When we carry out the operation:

8.85 ÷ (6.69 × 10^(-7)), it is essentially equal to (8.85 × 10^(7))/6.69.

This means that the new value would be significantly larger than the initial value of 8.85.

Thus,this operation yields a significantly larger value.

4 0
3 years ago
Can you help me with this Q i cant get it i have 3 min only please help me :)
Butoxors [25]

x= 3

AC = 22

hope it helps you...

7 0
2 years ago
Julius is going to have a multi-course meal. The following table shows how many different dishes are
AnnyKZ [126]

Answer:

36

Step-by-step explanation:

If its the khan question 3x4x3

6 0
3 years ago
Help please, put how you found it out if you can too !
earnstyle [38]

Answer:

104 degrees

Step-by-step explanation:

180-(180-(180-(25+85)+65)+31)

7 0
3 years ago
Other questions:
  • Membership in the art club costs $10 per month plus a one-time charge of $25 for basic supplies. Each statement compares the num
    14·1 answer
  • HELPPP PLEASEEE!!! I DON’T GET THIS AND I START SCHOOL TOMORROW
    6·1 answer
  • what is the volume of this cone use Pi 3.14 and round your answer to the nearest hundredth radius 14 height 14
    12·1 answer
  • In the figure, angle D measures 31° and angle A measures 27°.
    12·1 answer
  • 2x - 5y = 5 and y = x + 2
    10·2 answers
  • Conver 3/7 into a percent. round to two decimal places.
    15·2 answers
  • According to a college survey 32% of all students work fulltime. Find the mean for the number of students who work full time in
    15·1 answer
  • What is the lateral surface area on a square pyramid with base edges of 10 and the height of 12
    6·1 answer
  • Is y=x2-1 linear or nonlinear
    14·1 answer
  • What is the measure of
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!