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2 years ago

Can someone answer this please? a 22.5mg b 33.75mg c 45mg d 11.25mg

Mathematics

2 answers:

atroni [7]2 years ago

3 0

I think the right answer is b

tester [92]2 years ago

3 0

Answer:

Step-by-step explanation:

to solve, we need to first figure out how much is %75 of 45, an easy way to figure this out is to find the common denominator in both sides, since we know that %75 of something is also 3/4, we can divide by the denominator

45 / 4 = 11.25

now thats 1/4, but thats only %25, so all we need to do now is multiply by how many pieces we have, in this case 3 from 3/4

11.25 * 3 = 33.75

hope this helps you out with your homework :D

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Kate sold 12 of her paintings and purchased 7 more. if kate has 21 paintings now, how many paintings did she have to begin with?

kicyunya [14]

First, let x or any variable represent the number of paintings Kate initially has. After selling 12 of it, her paintings now becomes only x - 12. Then, she purchased 7 more making the number of her paintings become x - 12 + 7 = x - 5. This number tantamount to 21.

x - 5 = 21 ; x = 26

Thus, Kate initially had 26 paintings.

7 0

3 years ago

Use the product, quotient, and power rules of logarithms to rewrite the expression as a single logarithm. Assume that all variab

Viefleur [7K]

Answer:

log(x^7·y^2)

Step-by-step explanation:

The applicable rules are ...

... log(a^b) = b·log(a)

... log(ab) = log(a) +log(b)

_____

The first term, 7log(x) can be rewritten as log(x^7). Note that an exponentiation operator is needed when this is written as text.

The second term 2log(y) can be rewritten as log(y^2). These two rewrites make use of the first rule above.

Now, you have the sum ...

... log(x^7) +log(y^2)

The second rule tells you this can be rewritten as ...

... log(x^7·y^2) . . . . . seems to match the intent of the 3rd selection

5 0

2 years ago

Can someone answer this question please answer it correctly if it’s correct I will mark you brainliest

mash [69]

Answer:

Harry stains his shirt

1/5= 20%

15%

7 0

3 years ago

Read 2 more answers

Line RS intersects triangle BCD at two points and is parallel to segment DC. Triangle B C D is cut by line R S. Line R S goes th

Svetlanka [38]

Answer:

The correct options are;

1) ΔBCD is similar to ΔBSR

2) BR/RD = BS/SC

3) (BR)(SC) = (RD)(BS)

Step-by-step explanation:

1) Given that RS is parallel to DC, we have;

∠BDC = ∠BRS (Angles on the same side of transversal)

Similarly;

∠BCD = ∠BSR (Angles on the same side of transversal)

∠CBD = ∠CBD = (Reflexive property)

Therefore;

ΔBCD ~ ΔBSR Angle, Angle Angle (AAA) rule of congruency

2) Whereby ΔBCD ~ ΔBSR, we therefore have;

BC/BS = BD/BR → (BS + SC)/BS = (BR + RD)/BR = 1 + SC/BS = RD/BR + 1

1 + SC/BS = 1 + RD/BR = SC/BS = 1 + BR/RD - 1

SC/BS = RD/BR

Inverting both sides

BR/RD = BS/SC

3) From BR/RD = BS/SC the above we have by cross multiplication;

BR/RD = BS/SC gives;

BR × SC = RD × BR → (BR)(SC) = (RD)(BR).

7 0

2 years ago

What is the the comparison number for 30and 60

Anestetic [448]

Answer:

2 i think

Step-by-step explanation:

8 0

2 years ago