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babunello [35]
3 years ago
13

Notebooks cost $1.20 each this weekend they will be on sale for $.80 what percentage is the sale

Mathematics
2 answers:
Vladimir79 [104]3 years ago
7 0

Answer:

33%

Step-by-step explanation:

(1.20-0.80)

=0.40 dollars

(0.40/1.20)x100

0.33x 100

=33%

Hope this helps and can I get a brainliest if you want to. That would be nice thanks!

Nataliya [291]3 years ago
3 0
It’s a 34% discount
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Za and Zb are complementary angles. Za measures 64º.<br> What is the measure of Zb?<br> O
vova2212 [387]

Answer: The measure of <b is 26 degrees.

Step-by-step explanation:  

Complementary angles are angles that add up to 90 degrees. I remember this because my teacher told me this: "Complements are always RIGHT!" Of course, this is a reference to complementary angles combining to make right angles, which are 90 degrees.

To go back on your question, if  <a and <b are truly complementary, then m<a +m<b = 90 degrees. Substitute the measure of <a for 64 degrees, then you get 64 degrees + m<b = 90 degrees. Simplify. Then you'd get that the measure of <b is 26 degrees.

(P.S. Sorry if I cluttered up the ask portion of your post. I haven't used this platform in like 2 years, so everything seems so foreign to me.)

5 0
3 years ago
A patient needs to receive 1 teaspoon of a medication per day for one week. How many milliliters of the medication must be dispe
BabaBlast [244]

Answer:

B.   35 milliliters,

Step-by-step explanation:

1 teaspoonful = 5 mls so the total volume of medicine

=  7 * 5

= 35 milliliters.

6 0
3 years ago
The number 2400 is first increased by 30%.The value obtained is next decreased by 20%.Find the final number
kvasek [131]

<em>2400 is increased by 30%.</em>

so,

2400 + (30/100 * 2400)

2400 + (30 * 24)

2400 + 720

3120

<em>this number is decreased by 20%.</em>

so,

3120 - (20/100 * 3120)

3120 - (2 * 312)

3120 - 624

2496

therefore, the final number will be 2496.

3 0
3 years ago
If f(x)=3x-1 and g(x)=x+5, find (f o g)(x) and (g o f)(x)<br><br> (f o g)(x)=<br><br> (g o f)(x)
Nuetrik [128]

Answer:

(f o g)(x)= 3x + 14

(g o f)(x) = 3x + 4

Step-by-step explanation:

(f o g)(x) = f(g(x)) = f(x + 5) = 3(x + 5) - 1 = 3x + 15 - 1 = 3x + 14

(g o f)(x) = g(f(x)) = g(3x - 1) = 3x - 1 + 5 = 3x + 4

3 0
2 years ago
I really need help!If someone answers this,I will be happy to mark the brainest answer!EXTRA:you can answer the top question for
andreev551 [17]

9) They traveled 31.9 hours over the 3-day trip.

10.9 + 8.6 + 12.4 = 31.9

10) She does not have enough money. She has $12, but everything she wants to purchase would cost $12.39.

Large drink = 1.79

Turkey sandwich = 4.85

1.79 + 4.85 = 6.64

6.64 + 5.75 = 12.39

5 0
3 years ago
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