33% of what number is 1.45

Answers

Answer 1

Answer: We have an equation: 1.45/?= 33/100

Cross multiply:
33*? = 1.45*100
⇒ ? = 1.45*100/33= 4.394

The final answer is 4.394~

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Carson walked 6 1/2 mi in 2 h. How long will it take him to walk 16 1/4 mi at the same speed? [ ] h

Answers

$6 (1)/(2)mi.......2h \n\n 16(1)/(4)mi........x \n\n \hbox{Introduce the units in the fractions} \n\n\n (13)/(2)mi.........2h \n\n (65)/(4)mi.........x \n\n \hbox{Solve the proportion obtained:} \n\n x= ((65)/(\not4)\not mi*\not2h)/((13)/(2)\not mi) \n\n \hbox{Simplify the units of measurement and 4 with 2 } \n\n\n x=((65)/(2)h)/((13)/(2)) \n\n x= (\not65)/(\not2)h* (\not2)/(\not13) \n\n \hbox{Simplify 65 and 13 throw 13 and 2 with 2} \n\n \boxed{x=5 \ hours}$

Help a gurl out, my fellow Brainy's?What is the quotient written in scientific notation?
2x10^21 over 8x10^3

A.2.5x10^6

B. 0.25x10^18

C.2.5x10^17

D.0.25x10^7

Answers

so (2 times 10^21)/(8 times 10^3)
using the associative property
exg
xy/zt=y/z times x/t so

(2 times 10^21)/(8 times 10^3)=2/8 times (10^21)/(10^3)
2/8=1/4=0.25

when dividing exponents, just subtract the bottom number from the top number exg
10^21/10^3=10^(21-3)=10^18

so the answer is 0.25 times 10^18, but

scientific notation is
(a number >1 and <10) times 10^x

so 0.25 times 10=2.5 and 2.5>1 and <10 so this should work

0.25 times 10^18=2.5 times 10^17 ( we just took the ten from the 18)

so the answer is 2.5 times 10^17 or C

The diameter of a circle is 16 feet.What is the radius of the circle?

4 ft

8 ft

48 ft

32 ft

Answers

thecradius is 8 feet

Divide 33 photos into two groups so the ratio is 4 to 7.

Answers

4:7....4 + 7 = 11

(4/11)(33) = 132/11 = 12 <== group 1
(7/11)(33) = 231/11 = 21 <== group 2

4/7 = 12/21

PLEASE HELP! How do you count (a+2) (b+1) ??

Answers

$(a+2)(b+1)=(a)(b)+(a)(1)+(2)(b)+(2)(1)\n\n=ab+a+2b+2$

john had a ribbon that was 1 1/2 meters long. he used 2 pieces that were each 1/3 of that length. how much ribbon did john use

Answers

Of means multiplication. So the question is 1/3 X 1 1/2. First make 1 1/2 improper: 3/2. Then multiply the numerators (top numbers) and denominaters (bottom numbers): 1x3=3, 3x2=6, =3/6. Now simplify 3/6=1/2. Then multiply that by 2, since he used 2 pieces: 1/2x2=1. John used 1 meter :)

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