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
zepelin [54]
3 years ago
13

10. Find the value of x. (5x+12) (3x+8)

Mathematics
2 answers:
xeze [42]3 years ago
8 0
Answer:20
5x add 3x is 8x 12 + 8 is 20 so 8x + 20 = 180 because it’s a straight line so 180-20 is 160 then divide 160 by 8 to work out 1 x rather than 8 x which is 20
Solnce55 [7]3 years ago
8 0

Answer:

Step-by-step explanation:

This is an isosceles triangle so the two down angles are equal

(5x+12) + (3x+8) = 180° (angle on a straight line is equal 180°)

Open brackets

5x+12 + 3x+8 = 180

8x + 20 = 180

Collecting like terms

8x = 180 - 20

8x = 160

Dividing by 8

x = 160/8

x = 20°

You might be interested in
A store has a 2 5 % 25% off sale on coats. With this discount, the price of one coat is $ 3 4 . 5 0 $34.50. What is the original
valentinak56 [21]

Answer:

The original price of the coat is $46

Step-by-step explanation:

In order to find this, we need to start with the cost after the discount. We can then divide this by the amount in percentage that we paid. Since it is 25% off, we paid 75%.

$34.50/75% = $46

3 0
3 years ago
A jug contains some orange juice. After pouring 240 milliliters of the orange juice into a cup, there are 875 milliliters of ora
zubka84 [21]

Answer:

1,115 mL

Step-by-step explanation:

The original amount of OJ is what we're trying to find, so that will be our variable, x. Now, keep in mind the order of events to write the correct equation. We started with the x amount of OJ, then 240 mL was taken away, to leave us with 875 mL. So, x - 240 = 875. Then we solve this by adding 240 to both sides to get the x alone. This gives us x=1,115 mL!

4 0
3 years ago
What's the probability that the product of 2 rolls of a d6 is odd?
timofeeve [1]
My guess is 3/6 is your answer
4 0
4 years ago
Last night, the knicks made 12 free throws. if their free throw average is 75% how many free throws were attempted?
Free_Kalibri [48]
75% is 3/4

So if 12 = 3/4, then 1/4 = 4

Therefore, they attempted 16 free throws ✌
4 0
4 years ago
Read 2 more answers
Marcus said the product of 78 × 134 is 94. How can you tell that his answer is wrong?
Valentin [98]
Because you ate multiplying big numbers, you know your answer is going to be even bigger...and 78 x 134= 10,452
5 0
3 years ago
Other questions:
  • tickets for a football match are sold at $30 for adults and $15 for children a company bought 28 tickets if x of these tickets w
    6·1 answer
  • (9 1/3 + 4 2/3) +7 - (-12)= <br><br> A: 2 and 5/8<br> B: -13 and 13/16<br> C: 14<br> D: 4
    12·1 answer
  • Molly purchased 7 apples for $3.96. while looking at her receipt, Molly divided three $3.96 by 7. why might Molly perform this c
    7·1 answer
  • 17 POINTS!!!! List the elements in the set described. {x|x is a natural number between 9 and 17} (Use a comma to separate answer
    8·1 answer
  • Etermine whether the conjecture is true or false. Give a counterexample for any false conjecture.
    9·1 answer
  • 121/132 in simplest form
    13·1 answer
  • As an estimation we are told £3 is €4.
    10·1 answer
  • Section 1 - Question 3 Which expression would produce the greatest product? A 10 × 1/2 10 × 1/ 10 × 100 10 × 3 B C
    14·1 answer
  • Which of the following correctly shows the quotient of 80 divided by 5?
    11·2 answers
  • identify the equation in the point-slope form the line parallel to y=3/4x-4 that passes through (-1,7)
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!