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2 years ago

Select all the fractions that are equivalent to 4/5. Use the area models to help.

Mathematics

1 answer:

FrozenT [24]2 years ago

6 0

Answer:

8/10 and 12/15

Step-by-step explanation:

The first area model shows that 4 of the 5 blocks are filled.

The second area model shows that 8 of the 10 blocks are filled.

The third area model shows that 12 of the 15 blocks are filled.

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What is the value of x

barxatty [35]

Answer:

Step-by-step explanation:

because 65 and 79 make up for x

5 0

2 years ago

Maya had $27. She spent all the money on buying 3 burgers for $x each and 2 sandwiches for $y each. If Maya would have bought 2

defon

Answer:

Option C

The student's conclusion is correct because the solution to the system of equations $3x+2y=27$ and $2x+y=16$ is $(5,6)$

Step-by-step explanation:

Let

x------> the cost of each burger

y-----> the cost of each sandwich

we know that

$3x+2y=27$ -----> equation A

$2x+y=(27-11)$

$2x+y=16$ ----> equation B

Solve the system of equations

Multiply the equation B by $-2$

$-2(2x+y)=-2*16$ -----> $-4x-2y=-32$ ------> equation C

Adds equation A and equation C

$3x+2y=27 \\-4x-2y=-32\\ ----------\\ 3x-4x=27-32\\ -x=-5\\x=5$

Substitute the value of x in the equation B

$2(5)+y=16$

$10+y=16$

$y=6$

The solution of the system of equations is the point $(5,6)$

The price of each burger is $\$5$

The price of each sandwich is $\$6$

6 0

2 years ago

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I'm.not understanding this at all please help

alekssr [168]

Http://rss2search.com/nohost.php?url=www.edhelperblig.com/cgi-bin/socstud.cgi

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3 years ago

Pyramid A is a square pyramid with a base side length of 18 inches and a height of 9 inches. Pyramid B has a volume of 3,136 cub

seraphim [82]

Answer:

322.63%

Step-by-step explanation:

Volume of square pyramid = 1/3a²h

a = base side length ; h = height

Volume of pyramid A :

a = 18 ; h = 9

V = 1/3*18²*9

V = 18² * 3

V = 972 in³

Volume of pyramid B = 3136 in³

Volume of pyramid B / Volume of pyramid A

(3136 / 972) * 100% = 322.63%

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2 years ago

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Simply the expression by combining like terms.

Marina CMI [18]

Answer:

6z+7

Step-by-step explanation:

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2 years ago