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2 years ago

What is 7 1/2 increased by 5 1/4?

Mathematics

1 answer:

g100num [7]2 years ago

5 0

Answer:

12.75

Step-by-step explanation:

12 3/4

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Al saves pennies. He agreed to give 3/7 of his pennies to Bev if she would give 3/7 of what she got from Al to Carl and if Carl

ser-zykov [4K]

Answer:

2744 pennies.

Step-by-step explanation:

Let x represent the number of pennies Al have initially.

We have been given that Al agreed to give 3/7 of his pennies to Bev, so number of pennies Bev will get would be $\frac{3}{7}x$ .

We are also told that Bev gave 3/7 of what she got from Al to Carl, so number of pennies that Carl will get would be $\frac{3}{7}x\cdot \frac{3}{7}=\frac{9}{49}x$ .

Further, Carl gave 3/7 of what he got from Bev to Dani, so number of pennies that Dani will get would be $\frac{9}{49}x\cdot \frac{3}{7}=\frac{27}{343}x$ .

We are also told that Dani received 216 pennies. Now, we will equate 216 to $\frac{27}{343}x$ and solve for x as shown below:

$\frac{27x}{343}=216$

$\frac{27x}{343}*343=216*343$

$27x=74088$

$\frac{27x}{27}=\frac{74088}{27}$

$x=2744$

Therefore, Al have 2744 pennies initially.

3 0

3 years ago

Please can you help me with this problem. Thanks.

avanturin [10]

Hey! since it’s a 5 sided shape it’s area will be 540° so you add up 108+100+90+120=418
the final angle is 122*
then since angles on a straight line is 180° you minus 122 from 180 and x= 58°

6 0

2 years ago

A teacher always arranged the content0 of each lessons to Year 10 as teaching and practising learnt skills in the ratio 2:3. α I

Paraphin [41]

I'd say (a) = 52.5 minutes or 52 minutes and 30 second

(b) = 45 minutes

3 0

3 years ago

Sir Isaac Newton wrote the equation (d=1/2 gt^2 to determine the distance (d), in meters, an object falls in a given amount of t

qwelly [4]

Answer:

D) 32g

Step-by-step explanation:

$\displaystyle d=\frac{1}{2}gt^2\\\\d=\frac{1}{2}g(8)^2\\\\d=32g$

3 0

2 years ago

The walls of a square room need painting. each of the four walls is 12ft wide by 8.5 feet tall. one gallon of paint covers 75fts

miv72 [106K]

The surface to be paint is 4 * 12*8.5= 408 ft squared

1 gallon.......75 ftsquared
x gallon.......408 ft squared
------------------------------------
x= 408/75= 5,44 gallons

7 0

3 years ago

What is 7 1/2 increased by 5 1/4?​

What is 7 1/2 increased by 5 1/4?