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11Alexandr11 [23.1K]
4 years ago
15

HELPPPP

Mathematics
1 answer:
AleksandrR [38]4 years ago
3 0

Answer:

<h2>18.750kg</h2>

Step-by-step explanation:

If a mass of 2.5 grams costs a penny, we want to know the amount of mass that will cost $75.  Before we get the mass, we need to convert 75 dollars to penny. Using the conversion:

$1 = 100pennies

$75 = (75*100)pennies

$75 = 7,500 pennies

Using the law of equivalence

1 penny = 2.5 grams

7,500pennies = x grams

Cross multiply

1 * x = 2.5 * 7500

x = 18,750 grams

Hence 18,759 grams will cost $75

Converting grams to kilograms

If 1000 grams = 1kg

18,750grams -= y

cross multiply

1000*y = 18750

Divide both sides by 1000

1000y = 18750/1000

y = 18.750kg

<em>Hence the amount in kilogram of $75 coin in pennies is 18.750kg</em>

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The quotient of 24.5 ÷ 0.8 and 245÷8 is equal to?​
Strike441 [17]

Answer:

Step-by-step expla

24.5 by 0.8 =30.625

245 by 8 = Exact form is =245/8

                  desimal from is = 30.625

                   mixed number form is = 30 5/8  

6 0
3 years ago
Help me please i wil be so thankfull.
kykrilka [37]

Answer: 4in

Step-by-step explanation:

Diameter is the radius * 2. The radius is 2in. 2 * 2 = 4

4 0
4 years ago
What’s the answer ?
Misha Larkins [42]

Answer:

3 one ofx+2 And 4th one x4

6 0
3 years ago
Please help!!
Elodia [21]

Answer:

AC=\sqrt{13}

Step-by-step explanation:

As the the length of the segments BC = AC, so the triangle ABC must be an isosceles triangle.

As CD ⊥ AB, it means the base AB gets bisected by CD, making two congruent angles named as ∠ACD and ∠BCD. As shown in attached figure.

CD bisecting the base AB into two equal parts means if AB = 4, then

the length of AD = 2 and the length of DB = 2. Hence, AD = DB

As BC = AC, it means these two equal sides of isosceles triangle would make equal angles on the opposite side. Hence, angle ∠A and ∠B would be equal as shown in attached figure.

As CD is bisecting the base AB into two equal parts. Hence, it can be treated as the part of two right triangles named  ACD and BCD.

So, the length of AC can be easily determined using using the Pythagoras formula.

So,

     c² = a² + b²

     c=\sqrt{a^{2}+b^{2}}

     AC=\sqrt{2^{2}+3^{2}}

     AC=\sqrt{9+4}}

     AC=\sqrt{13}}

     

Hence AC=\sqrt{13}

Keywords: isosceles triangle, hypotenuse, hypotenuse

Lear more about isosceles triangle and finding hypotenuse using Pythagorean Theorem from brainly.com/question/3956010

#learnwithBrainly

7 0
4 years ago
Plz help me with this no links
Svetach [21]
Angle ABC=55
180-75-50=55
3 0
3 years ago
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