All categories

3 years ago

Solve: 12 dogs decreased by 25% step by step pls.

2 answers:

8 0

Decreased by 25%
find 25% of 12 and decrease 12 by it

percent means parts out of 100
25%=25/100=1/4
'of' means multiply
25% of 12=1/4 times 12=3

decrease 12 by 3
12-3=9

answer is 9

kramer3 years ago

7 0

first turn 25% into a decimal so it's easier to work with, the decimal for 25% is 0.25

then multiply the number by the decimal

12x0.25=3

then subtract your answer (3) from your starting number

12-3=9

12 dogs decreased by 25% leaves you with 9 dogs left.

if you are increasing, divide instead of multiply

You might be interested in

I need some serious help at the moment. can someone help me with this problem?

IRINA_888 [86]

Answer:

You get 0.95

Step-by-step explanation:

Change each percentage to decimals.

70% is equal to 0.70

25% is equal to .25

15% is equal to .15

Add the decimal of pizza to the decimal of salad.

4 0

3 years ago

Calculate the Land Transfer Tax on a house for 248000

Phoenix [80]

Answer:Calculate the Land Transfer Tax on a house for 248000

Calculation example

1.multiply $55,000 by 0.5% (55,000 × 0.005) = $275.

2.multiply the amount exceeding $55,000 up to $250,000 by 1.0% (195,000 × 0.01) = $1,950.

3.multiply the amount exceeding $250,000 up to $400,000 by 1.5% (150,000 × 0.015) = $2,250.

Step-by-step explanation:

3 0

3 years ago

Factor the tribunal into two binomials than solve?

Vanyuwa [196]

Answer:

$(x-5)(x-3)=0$

$x=5 \text{ and } x=3$

Step-by-step explanation:

Quadratic Equation given:

$x^2-8x+15=0$

In order to factor this equation think that we'll have something in the format: $(x-a)(x-b)$

Once: -a -b = -c

and (-a)(-b)= d

Therefore, we have

$(x-5)(x-3)=0$

$x-5=0\\\text{or}\\x-3=0$

$x=5 \text{ and } x=3$

4 0

4 years ago

What are the values of a and b

makvit [3.9K]

Answer:

$\large\boxed{B.\ a=8,\ b=4\sqrt5}$

Step-by-step explanation:

We have three similar triangles:

$\triangle ABC\sim\triangle DBA\sim\triangle DAC$

therefore the sides are in proportion:

$\dfrac{AD}{CD}=\dfrac{BD}{AD}$

We have AD = a, CD = 16 and BD = 4. Substitute:

$\dfrac{a}{16}=\dfrac{4}{a}$ <em>cross multiply</em>

$(a)(a)=(16)(4)\\\\a^2=64\to a=\sqrt{64}\\\\a=8$

and other proportion:

$\dfrac{AB}{BC}=\dfrac{BD}{AB}$

We have AB = b, BC = 16 + 4 = 20 and BD = 4. Substitute:

$\dfrac{b}{20}=\dfrac{4}{b}$ <em>cross multiply</em>

$(b)(b)=(20)(4)\\\\b^2=80\to b=\sqrt{80}\\\\b=\sqrt{16\cdot5}\\\\b=\sqrt{16}\cdot\sqrt{5}\\\\b=4\sqrt{5}$

3 0

3 years ago

Please help asap....

quester [9]

Answer: B or D

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers