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valina [46]
2 years ago
10

A family eats at a restaurant. The bill is $38.70. The family leaves a tip and spends $46.44. What percentage of the bill is the

tip?
Mathematics
2 answers:
Sophie [7]2 years ago
6 0

Answer:

20%

Step-by-step explanation:

First let's find 10% of the bill. 38.7 divided by 10 = $3.87. Now we can add this to the bill until we get the answer or close to it. 38.70 + 3.87 = 42.57 + 3.87 = 46.44. That is the total cost. How many times did we add it? Twice, so we do 10*2=20. The tip was 20% of the bill

balu736 [363]2 years ago
3 0
The answer is 5 percent
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5 0
3 years ago
Pleaseee help me!! ASAP
vichka [17]

Answer:

Yes 4:3

Step-by-step explanation:

To solve this, take the the inside number and subtract in from the outside number. Look at the question very carefully for this part...

Since it says the ratio of the outside number to the inside number, take that number and see how many times it can fit into the outside number. In this case, it is 4, and than for the inside number, it is 3.

Now do the same for the other measurement and see if it has the same ratio, and if it does, that is the answer.

6 0
3 years ago
Please answer !!!!!!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!!!!!
KIM [24]

Answer:

m∠B = 69°

General Formulas and Concepts:

  • Order of Operations: BPEMDAS
  • Equality Properties
  • Complementary Angles add up to 90°

Step-by-step explanation:

<u>Step 1: Define</u>

m∠A = (x + 9)°

m∠B = (7x - 15)°

<u>Step 2: Set up equation</u>

m∠A + m∠B = 90°

(x + 9)° + (7x - 15)° = 90°

<u>Step 3: Solve for </u><em><u>x</u></em>

  1. Combine like terms:                    8x - 6 = 90
  2. Add 6 to both sides:                    8x = 96
  3. Divide both sides by 8:                x = 12

<u>Step 4: Find m∠B</u>

  1. Define:                    m∠B = (7x - 15)°
  2. Substitute:              m∠B = (7(12) - 15)°
  3. Multiply:                  m∠B = (84 - 15)°
  4. Subtract:                 m∠B = 69°
5 0
2 years ago
NEED HELP ASAP<br><br> Question A.) k=5<br> Question B.) ????
andrezito [222]

Answer:

b) f^{-1}(x) = \frac{4x+5}{3}

Step-by-step explanation:

b) To find the inverse function, switch the x and y variables and solve for y:

f(x) = \frac{3x-5}{4}\\y = \frac{3x-5}{4}\\x = \frac{3y-5}{4}\\4x = 3y-5\\4x+5 = 3y\\\frac{4x+5}{3} = y\\f^{-1}(x) = \frac{4x+5}{3}

Verify Answer:

f(1) = \frac{3(1)-5}{4} = -0.5\\f^{-1}(-0.5) = \frac{4(-0.5)+5}{3} = 1

3 0
1 year ago
You brought 1.5 dozen bagels to school. A dozen bagels cost $5.98. You used a coupon that took $1.00 off of the total. How much
Sindrei [870]

1 dozen cost 5.98

 so 1.5 dozen cost : 5.98 x 1.5 = 8.97

 a coupon takes $1 off the price so

8.97-1.00 = 7.97

 they cost a total of $7.97

5 0
2 years ago
Read 2 more answers
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