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4 years ago

23% of 75 is what number

Mathematics

2 answers:

Katena32 [7]4 years ago

7 0

0.23 x 75 = 17.25

23% of 75 is 17.25

nikklg [1K]4 years ago

6 0

Hey there! To fin the percentage of something, multiply by the decimal. So to get the decimal of 23%, we just move it over to left twice, and you get 0.23. Next, multiply. We get 17.25, and that's you answer: 17.25 is 23% of 75 Hope I helped!

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A rectangle has an area of 112cm. The length and width of the rectangle are changed by a scale factor of 1.5. What is the area o

soldi70 [24.7K]

Answer:

252 cm²

Step-by-step explanation:

Area of a rectangle is width times length:

A = WL

If the width and length increase by a factor of 1.5:

A = (1.5 W) (1.5 L)

A = 2.25 WL

So the area increases by a factor of 2.25.

2.25 × 112 cm² = 252 cm²

4 0

3 years ago

1) Find the minimum and maximum values for the function with the given domain interval.

Julli [10]

Answer:

"minimum value = 0; maximum value = 8"

Step-by-step explanation:

This is the absolute value function, which returns a positive value for any numbers (positive or negative).

For example,

| -9 | = 9

| 9 | = 9

| 0 | = 0

Now, the domain is from -8 to 7 and we want to find max and min value that we can get from this function.

If we look closely, putting 7 into x won't give us max value as putting -8 would do, because:

|7| = 7

|-8| = 8

So, putting -8 would give us max value of 8 for the function.

Now, we can't get any min values that are negative, because the function doesn't return any negative values. So the lowest value would definitely be 0!

|0| = 0

and

ex: |-2| = 2 (bigger), |-5| = 5 (even bigger).

So,

Min Value = 0

Max Value = 8

8 0

3 years ago

Read 2 more answers

Segment BD is an altitude of triangle ABC. Find the area of the triangle.

Sever21 [200]

Answer: The correct option is A, i.e., 7.5.

Explanation:

It is given that ABC is a triangle and BD is an altitude.

Since BD is an altitude, therefore the height of the triangle is BD and the base of the triangle is AC.

The distance formula to find the distance between two points is,

$D=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

First, we find BD, where B(-1,4) and D(2,4).

$BD=\sqrt{(2+1)^2+(4-4)^2}=\sqrt{9} =3$

So, the height of the triangle is 3.

Now, we find the value of AC, where A(2,1) and C(2,6).

$AC=\sqrt{(6-1)^2+(2-2)^2}=\sqrt{25} =5$

So, the base of the triangle is 5.

The formula to find the area of a triangle is,

$A=\frac{1}{2}\times {\text{base}}\times {\text{height}}$

$A=\frac{1}{2}\times 5\times 3=\frac{15}{2}=7.5$

Therefore, the area of the triangle is 7.5 unit square and the correct option is A.

6 0

3 years ago

Read 2 more answers

PLEASE HELP ME WITH THIS MATH QUESTION!!!!! GIVING 15 Points::

NISA [10]

Answer:

I THINK ITS B

Step-by-step explanation:

3 0

3 years ago

Kate has a coin collection. She keeps 7 of the coins in her box, which is only 5% of her entire collection. What is the total nu

Serga [27]

Answer:

140 coins

Step-by-step explanation:

To calculate the total number of coins Kate have in her collection, we can use the rule of three:

The problem says that 7 of her coins are equivalent of 5% of her entire collection, and we want to know the total number of coins (100%) of her collection. So, if 7 coins are 5%, how much coins are 100%:

7 -> 5%

X -> 100%

7/X = 5/100

X = 100*7/5 = 140 coins

5 0

4 years ago