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
pantera1 [17]
3 years ago
5

Need this turned in by tonight. Solving for x. My brain is fried, I have been doing math for the last 4 hour.Help!!!!!

Mathematics
1 answer:
inysia [295]3 years ago
3 0

Answer:

  • 18. x = 24.5
  • 19. x = 4
  • 21. x = 10

Step-by-step explanation:

Corresponding sides have same ratio

Q18

  • 7/6 = x / (27- 6)
  • 6x = 7*21
  • x = 147/6
  • x = 24.5

Q19

  • (x + 5)/15 = (5x + 1)/35
  • (x + 5)/3 = (5x + 1)/7
  • 7(x + 5) = 3(5x + 1)
  • 7x + 35 = 15x + 3
  • 15x - 7x = 35 - 3
  • 8x = 32
  • x = 4

Q21

  • (x + 6)/24 = (2x - 2)/27
  • (x + 6)/8 = (2x - 2)/9
  • 8(2x - 2) = 9(x + 6)
  • 16x - 16 = 9x + 54
  • 16x - 9x = 54 + 16
  • 7x = 70
  • x = 10
You might be interested in
Suppose that 3 cards are drawn from a well-shuffled deck of 52 cards. What is the probability that all 3 are diamonds?
Marat540 [252]

There are 13 diamonds in the deck, so \dbinom{13}3 ways of drawing 3 diamonds.

There is a total of \dbinom{52}3 ways of drawing any 3 cards from the deck.

So the probability of drawing 3 diamonds is

\dfrac{\binom{13}3}{\binom{52}3}=\dfrac{11}{850}\approx0.012941

where \dbinom nk=\dfrac{n!}{k!(n-k)!}.

5 0
3 years ago
X + (2x + 40) + (3x – 50) = 15,002
Charra [1.4K]

Answer:

2497.22...

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
We either walk 5 miles/day or ride a bike 10 miles/day. How many days will it take to cover a distance of at least 150 miles?
g100num [7]

Answer:

30 for walking, 15 for biking

Step-by-step explanation:

150 divided by 5

150 divided by 10

5 0
3 years ago
A baseball is thrown without any spin. Would you consider the baseball to be in motion?
liq [111]

Answer:

yes

Step-by-step explanation:

5 0
3 years ago
What is 0.15x10^-2 written in scientific notation?​
Arada [10]

Step-by-step explanation:

fcgfsykmcsunvdsihjiutt

6 0
3 years ago
Other questions:
  • How can you find the area of 224sq metera and base of 16 meters of a parallelogram
    6·1 answer
  • Alex is putting a border around his bedroom. The bedroom measures 15 feet by 12 feet. Write an expression that can be used to fi
    7·2 answers
  • Simplify and state restrictions.
    9·1 answer
  • What is the length of side a? When one side is 16 and the other side 7
    11·1 answer
  • Y = 5 - 2x<br> inputs are : -1, 1, 3, and 5.<br> I need the outputs :)
    5·1 answer
  • G(x)=3x^2+6x−9<br><br> I need the vertex for this please
    11·1 answer
  • Lock 1: Write your response in Alphabetical Order and in ALL CAPITAL LETTERS (Do not put any spaces or commas.) You must choose
    8·1 answer
  • Solve for a missing factor,
    10·2 answers
  • Which of the following rational functions is graphed below?
    13·1 answer
  • How many equal line segments are needed to make a line of 30 treianges
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!