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
zzz [600]
4 years ago
7

Lara chooses a number less then 20 she divided it by 2 and then adds 6 she then divides this result by 3 her answer is 4.5 what

was the number she started with ?
Mathematics
1 answer:
Mnenie [13.5K]4 years ago
8 0
For questions like this, we will work backward to arrive at the initial number.

Start with the final answer. The answer is 4.5.

[divided by 3,] so we will multiply by 3
4.5 x 3 = 13.5

[Add 6], so we will subtract 6
13.5 - 6 = 7.5

[divided by 2], so we will multiply by 2
7.5 x 2 = 15

----------------------------------------------------
Answer: The initial number is 15.
----------------------------------------------------

You might be interested in
The area of the rectangle shown is 44 m².<br> Work out the missing length X.<br> xm<br> 3 m
Akimi4 [234]
11.
so we do 40 / 3.667 (3 and 2/3, as far as i can tell) to get x.
so it's 10.9, or 11.
7 0
1 year ago
Which relationship describes angles 1 and 2?
MissTica
<span>1) supplementary angles => sum of angles' measure is 180°


Two lines intersecting creating four angles with the left obtuse angle labeled one and the acute angle to the right labeled two

= > angle 1 +  angle 2 = 180°

Then those two match.


2) complementary angles => sum of the two angles = 90°

Two lines intersecting in a right angle with a square indicating a right angle in quadrant one and a ray splitting quadrant two with a two labeling the left angle and one labeling the angle on the right

=> angle 2 + angle 1 = 90°

Then those two match

3) vertical angles

Two parallel horizontal lines intersected by a vertical line with a square indicating a right angle in quadrant one of the top line and a one labeling the angle in quadrant two and two labeling quadrant four of the top line

Those two matches because the angle label 1 and the angle label 2 are vertical angles as per the definittion.

4) adjacent angles

Two lines intersecting in a V shape with the left angle of one hundred fifty seven degrees and a bottom angle of X degrees

Those two match becasue the angle of 157° and the angle of X° are adjacent.
</span>
5 0
3 years ago
Read 2 more answers
In the past, 75% or less of the tourists who visited Tacoma went to see the glass blowing museum. The management of the museum r
Alex787 [66]

Answer:

H0 : p ≤ 0.75   against Ha : p > 0.75

Step-by-step explanation:

We formulate our null and alter native hypotheses as

H0 : p ≤ 0.75   against Ha : p > 0.75

In the question the claim whether the promotional campaign actually increased the proportion of tourists visiting the museum is given which is formulated as alternative hypothesis.

So when we formulate the alternative hypothesis as Ha : p> 0.75 the null hypothesis is H0 p ≤ 0.75

Where p is the probability = 75% = 75/100 = 0.75

5 0
4 years ago
3 plus two times blank equals 17 what is the blank?
Mekhanik [1.2K]
First 17-3

2×__=14

now divide by 2

__=7

check

3+2×7=17

3+14=17

17=17
8 0
3 years ago
A school principal ordered 1,000 pencils. He gave an equal number to each of 7 teachers until he had given out as many as possib
Semenov [28]
1000/7 = <span>142.857142857

Because this is not an even number we take "142", then times it by 7 teachers.

142*7= 994

1000 - 994 = 6 Pencils left</span>
3 0
4 years ago
Other questions:
  • Hudson went into a grocery store and bought 5 peaches and 7 mangos, costing a total of $16. Austin went into the same grocery st
    13·1 answer
  • Identify the series 1 + 5 + 9 + 13 + 17 + . . . .<br><br> arithmetic<br> geometric<br> neither
    5·2 answers
  • What are these figures
    5·2 answers
  • What is the volume of the shape...?
    12·1 answer
  • Hey home without the m now what's is 5678 x 43​
    5·1 answer
  • HELPLSPLSPLPSLPSLPSL
    6·1 answer
  • Help please i don’t really understand i am slow!
    7·1 answer
  • Select the correct answer. Which statement describes the end behavior of the function? A. The function approaches 0 as x approac
    14·1 answer
  • Which equations are true for x = –2 and x = 2? Select two options
    12·1 answer
  • What type of number is √5? Choose all answers that apply:
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!