What is 42 increased by 50%

Answers

Answer 1

Answer: Number = 42
Percent increase = 50%
Increase in number = 50% of 42 = 50/100 × 42 =21
So, increased number = 42+21 = 63

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After a discount of 15%, the of a shirt is $51. what was the original price of the shirt?

Answers

Good evening ,

Answer :

$60

Step-by-step explanation:

p − p×(15/100) = 51

⇔ p(1 - 15/100) = 51

⇔ p×[(100-15)/100] = 51

⇔ p×(85/100) = 51

⇔ 85×p = 100×51

⇔ p = 51×(100÷85) = 5 100÷85 = 60.

Answer:

$58.65

Step-by-step explanation:

change 15% to a decimal than multiply .15 by 51 then add 51.

A parallelogram has sides of length 7.7 millimeters and 17.2 millimeters. What is the perimeter?

Answers

Solutions

We know that a rectangle has four sides and the perimeter of a rectangle is the distance around the outside of the rectangle.The opposite sides of a rectangle are congruent To find the perimeter you have to use the formula 2 × (Side A + Side B).

We have the side lengths 7.7 mm and 17.2 mm.

Solve

2 × (Side A + Side B)
2 × ( Side A (7.7) + Side B (17.2) )
= (7.7 x 2) + (17.2 x 2)
= 49.6

The perimeter is 49.6 mm².

P=2b+2c
P=2(7.7)+2(17.2)
P=15.2+34.4
P=49.6 millimeters

Use cross products to determine which of the following proportions are equivalent to each other. Select all situations that apply.

Answers

9514 1404 393

Answer:

$(a)/(c)=(b)/(d)\ \Leftrightarrow\ (a)/(b)=(c)/(d)$

Step-by-step explanation:

The cross products related to the proportions shown here are ...

$(a)/(d)=(c)/(b)\ \Rightarrow\ ab=cd\n\n(a)/(c)=(b)/(d)\ \Rightarrow\ ad=bc\qquad\text{same as the fourth one}\n\n(d)/(a)=(c)/(b)\ \Rightarrow\ bd=ac\n\n(a)/(b)=(c)/(d)\ \Rightarrow\ ad=bc\qquad\text{same as the second one}$

What is the elapsed time for 4:30 and 6:15

Answers

between 4:30 and 6:15 it is 1 hour and 45 minutes

There are about 1.5 grams of fat in 1 tablespoon of hummus. How many grams of fat are in 2 1/2 cups of hummus? ( Note: 16. Tablespoons = 1 cup )

Answers

2 and 1/2=2.5cups
2.5 times 16=40tablespoons

1.5g=1tbs
1.5 times 40=60
60 grams

1.5 x 16 =24
24 x 2 = 48
48 + 1/2 of 24 = 12+48 = 60 grams of fat in
2 1/2 cups of hummus

I honestly have no idea how to solve this question
8c=5c+21

Answers

Remember this rule: Whenever you try to isolate the variable do the same operation to both sides
Using the rule above subtract 5c from both sides getting 3c = 21
Divide by 3 to both sides
Now you have c = 7
Thats you answer, if you have anymore questions just PM me

Well, subtract 5c from both sides, so cross out 5c and do 8c-5c which is 3c. S 3c=21. 21 divided by 3 is 7. So c is. 7.

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