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3 years ago

2. To which set or sets does the number -14

Mathematics

1 answer:

zhuklara [117]3 years ago

3 0

It is d im pretty sure

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Justine charges $25 to wash a dog. She washed 5 dogs on Saturday and then some more on Sunday. She made $325 for the weekend. Ho

Marrrta [24]

Answer

• A. Equation: 25(5 + x) = 325

• B. Answer: 8 dogs

Explanation

Given

• Charge to wash a dog: $25.

• She washed 5 dogs on Saturday and then some more on Sunday.

• She made $325 for the weekend.

Procedure

She charges $25 per wash, she made $325 for the weekend, and we know that on Saturday she washed 5 dogs, but we don't know how many she washed on Sunday. Thus, we have to build an equation in which the number of dogs washed on Sunday is represented by x (as we do not know the real number).

Considering that the total money made has to be equal to the multiplication of the charge times the dogs washed, the equation is:

$25(5+x)=325$

Then, we have to solve for x to know how many dogs did she wash on Sunday.

0. Multiplying the parenthesis

$125+25x=325$

2. Subtracting 125 from both sides of the equation

$125-125+25x=325-125$ $25x=200$

3. Dividing both sides of the equation against 25

$\frac{25x}{25}=\frac{200}{25}$ $x=8$

8 0

1 year ago

What is the answer to this fraction problem 4/5 - 8/15?

Marianna [84]

Is the answer to your question 4/15?

5 0

3 years ago

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Three friends, Ana, Jack and Nick come together to purchase a special from a pizza place. It is a half pepperoni, half mushrooms

maw [93]

Answer:

Paula would choose the side with all of the mushrooms and half of the pepperoni. She wont choose any sausage because she doesn't like it, but luckily David likes sausage twice as much as mushroom so he's fine with getting all of the sausage and half of the pepperoni. They both equally like pepperoni so it makes sense for them to share.

4 0

3 years ago

In ΔABC, m∠ACB = 90°, CD ⊥ AB and m∠ACD = 45°. Find: CD, if BC = 3 in

IRISSAK [1]

We can find m∠BCD like follows: m∠BCD=90°-45°=45°
Now, m∠DBC= 180°-(90°+45°)=45°

Remember that $sin \alpha = \frac{opposite leg}{hypotenuse}$ , so $oppositeleg=(hypotenuse)(sin \alpha )$

We know that hypotenuse= BC= 3in and $\alpha$ =∠DBC)=45°, so replacing the values we get:
$CD=3sin(45)=2.12$

We can conclude that the segment CD is 2.12 in

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3 years ago

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Solve for y. 9x-3y=12 ( literal equation)

Cerrena [4.2K]

Minus 9x from both sides
-3y=-9x+12
divide both sides by -3
y=3x-4

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3 years ago