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Alexus [3.1K]
3 years ago
15

A mail carrier delivers 110 letters in 20 minutes. How many letters does he deliver in 40 minutes?

Mathematics
2 answers:
liberstina [14]3 years ago
8 0

Answer:

220

This should be correct since you are multiplying by 2

kozerog [31]3 years ago
3 0

Answer: 220 just multiply by 2

Step-by-step explanation:

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What is the simplified form of the following expression?
geniusboy [140]

Answer:

242

Step-by-step explanation:

Simplify the following:

11 ((9^2 - 5^2)/2^2 + 8)

Hint: | Evaluate 2^2.

2^2 = 4:

11 ((9^2 - 5^2)/4 + 8)

Hint: | Evaluate 5^2.

5^2 = 25:

11 ((9^2 - 25)/4 + 8)

Hint: | Evaluate 9^2.

9^2 = 81:

11 ((81 - 25)/4 + 8)

Hint: | Subtract 25 from 81.

| 7 | 11

| 8 | 1

- | 2 | 5

| 5 | 6:

11 (56/4 + 8)

Hint: | Reduce 56/4 to lowest terms. Start by finding the GCD of 56 and 4.

The gcd of 56 and 4 is 4, so 56/4 = (4×14)/(4×1) = 4/4×14 = 14:

11 (14 + 8)

Hint: | Evaluate 14 + 8 using long addition.

| 1 |  

| 1 | 4

+ | | 8

| 2 | 2:

11×22

Hint: | Multiply 11 and 22 together.

| 2 | 2

× | 1 | 1

| 2 | 2

2 | 2 | 0

2 | 4 | 2:

Answer: 242

3 0
3 years ago
An 8-oz can of orange juice contains about 97 mg of vitamin C. About how
11111nata11111 [884]

Answer:

Step-by-step explanation:

12/8=1.5

1.5*97=145.5mg

5 0
3 years ago
1.Prove each statement. <br><br><br> step by step PLEASE!!!
Leya [2.2K]

Answer:

Step-by-step explanation:

a. sin^-1(sin theta) = theta

   (1/sin)(sin theta) = theta

<em>the sines cross out</em> theta = theta

b. cos(cos^-1x) = x

   cos(x/cos) = x

<em>the cosines cross out </em>x = x

5 0
3 years ago
The number 363636 is 333 times as many as 121212.
xenn [34]

Answer:

363636=333*121212

Step-by-step explanation:

3 0
3 years ago
WILL MARK BRAINLIEST AND RATE 5 STARS, PLEASE HELP, 50 POINTS
Xelga [282]
You're using inverse operation to solve this equation. Now you just have to think about it. What number plus 20 would equal the same number squared? The answer would be 5, since
5+20=5^2
25=25
 The statement above is true :)
Another number that would work for the equation would be x= -4
-4+20=-4^2
16=16
The statement above is also true so your answer would be x=-4 and 5
8 0
3 years ago
Read 2 more answers
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