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Sedaia [141]
3 years ago
7

Help please! Thank you

Mathematics
2 answers:
xenn [34]3 years ago
8 0
1'st you turn the percent's to decimals, 2nd add them 
Anna71 [15]3 years ago
6 0
First thing to do is set up your equation:
45/x = 20/100
Cross multiply
4500 = 20x
And divide by 20

Answer: 225 people were surveyed 

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A mountain has a 20 degree slope, and is 1 mile tall. How far do you need to hike to reach the summit?
netineya [11]

Answer:21

Step-by-step explanation:

3 0
3 years ago
When Cullen cleaned behind his dresser, he found 73 cents, all in nickels and pennies. There were 25 coins. How many were nickel
Georgia [21]
Let n = number of nickels, and p = number of pennies.
The number of coins is 25, so we get this equation.
n + p = 25

The value of the coins is 0.05 per nickel, and 0.01 per penny.
0.05n + 0.01p = 0.73

Now you have a system of equations.

n + p = 25
0.05n + 0.01p = 0.73

Solve the first equation for n:
n = 25 - p

Now substitute into the second equation.

0.05(25 - p) + 0.01p = 0.73

1.25 - 0.05p + 0.01p = 0.73

-0.04p = -0.52

p = 13

There were 13 pennies.
Now we substitute 13 for p in n + p = 25 to find out the number of nickels.

n + 13 = 25
n = 12

There are 13 pennies and 12 nickels.

Check: 13 pennies and 12 nickels does total 25 coins.
13 * 0.01 + 12 * 0.05 = 0.13 + 0.60 = 0.73
The value is $0.73.
Our answer is correct.
5 0
3 years ago
Find the distance between the points (6, 3) and (6,-5).
tiny-mole [99]

the answer is negative two over zero

6 0
3 years ago
HELP ME PLEASEEEEEE.........................
serious [3.7K]
The answer would be 48.
All you would have to do is multiply the height (the straight line) and the length which is the 6.
4 0
3 years ago
Read 2 more answers
Mia bought 2 adult tickets and 4 kid's tickets. Each adult ticket cost $13.50 and each kid ticket cost $10.25. How much did Mia
Citrus2011 [14]

Answer:

Mia spent 68 dollars.

Step-by-step explanation:

The equation would be 2(13.50) + 4(10.25) = x

Solving for the first part, you get 27 for adult tickets and 41 for the children tickets. When you add the two values, you get 68.

5 0
2 years ago
Read 2 more answers
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