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
mote1985 [20]
3 years ago
10

2x + 7 =30, x = 3 true or false

Mathematics
2 answers:
RSB [31]3 years ago
6 0

Answer:

False

Step-by-step explanation:

2x+7=30

2x=23

X= 23/2 or 11.5

X does not equal 3, therefore the statement is false

sdas [7]3 years ago
5 0
False x= 11.5 (in decimal form)
You might be interested in
The perimeter of a rectangular garden is 37.5 feet (ft). The width is x and the length is 15 ft. What is the width, in feet, of
nikitadnepr [17]

Answer:

the width is 22.5 ft

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Can someone pls help me with this?
Lisa [10]

Answer: A

Step-by-step explanation: 3(1)+k =8 8-3=5

5 0
2 years ago
Read 2 more answers
The book store is having a sale where all hardcover books are 20% off. Jamie also has a coupon for 15% off any fiction book. Jam
scoray [572]

You can use the fact that both 20% and 15% discounts will be merged to reduce 35% of the price of the book that Jamie buys.

By buying the book on sale and using the coupon, Jamie will save

Option B: $11.55

<h3>
How are discounts calculated for the case when its sale and we've got discount coupons too?</h3>

Suppose the sale gives p% off.

And the discount coupon provides q% off.

Then we have total discount applied on the cost of the object bought as

(p+q)%

<h3>How to find the percentage from the total value?</h3>

Suppose the value of which a thing is expressed in percentage is "a'

Suppose the percent that considered thing is of "a" is b%

Then since percent shows per 100 (since cent means 100), thus we will first divide the whole part in 100 parts and then we multiply it with b so that we collect b items per 100 items(that is exactly what b per cent means).

Thus, that thing in number is

\dfrac{a}{100} \times b

<h3>Using the above fact to calculate the amount that Jamie saved </h3>

Since the sale offers 20% discount and Jamie has got 15% discount coupon for any fiction book, thus, total 35% will be discounted if Jamie buys fiction book.

Since the price of the fiction book that Jamie brought is $32.99, thus,

Saved amount = 35% of $32.99 = \dfrac{32.99}{100} \times 35 = 0.3299 \times 35 \approx \$11.55

Thus,

By buying the book on sale and using the coupon, Jamie will save

Option B: $11.55

<h3 />

Learn more about percentage here:

brainly.com/question/11549320

5 0
2 years ago
Whats the gcf for 10y5+30y3-15y
Nataly [62]

Answer:

1, see the picture below, I used a calculator!

I hope this helps!!

5 0
2 years ago
Need help with math problem give 5 stars and brain thingy point
Lyrx [107]

Answer:

d) 3/8

Step-by-step explanation:

0, 1/8, 2/8, 3/8, 4/8, 5/8, 6/8, 7/8, 1

Hope this helps!

3 0
2 years ago
Read 2 more answers
Other questions:
  • Mrs. Kwan is three times as old as her daughter Ling,her son Chan,who is 5 years old is half as old as Ling. How old is Mrs. kwa
    7·2 answers
  • 780000 is the successor of what
    9·1 answer
  • What is 34/100 simplified?
    7·2 answers
  • WILL GIVE BRAINLIEST
    6·1 answer
  • How much sand do you need to fill this box?
    9·2 answers
  • What is 5 and 1/2 divided by 1/2 step by step ?? It would mean a lot!
    15·1 answer
  • 12.
    13·1 answer
  • Please answer this question. *PLEASE*
    11·1 answer
  • the sum of two numbers is 63. one ninth of the first number plus one sixth of the second number is 21. find the numbers
    7·1 answer
  • A plane travels at a constant speed. It takes 6 hours to travel 3,360 miles. What is the plane’s speed in miles per hour? At thi
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!