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3 years ago

Sis Avila (STUDEN...

Mathematics

1 answer:

vesna_86 [32]3 years ago

3 0

Answer:

sorry I dont know the way u put it makes no sense

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Which of the following equations represents the line with a slope of -7/4 and a y-intercept of -11?

andreev551 [17]

Y= -7/4x - 11
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3 years ago

A mixture of concrete is made up of sand and cement in the ratio of 5:3.How many cubic centimeters of sand is needed to make 160

bazaltina [42]

Answer: $100\ cm^3$

Step-by-step explanation:

Given

The ratio of mixture of sand and cement is 5:3

If the total volume of mixture is $160\ cm^3$

Suppose there is 5x and 3x cubic centimeter of sand and cement respectively i.e.

$\Rightarrow 5x+3x=160\\\Rightarrow 8x=160\\\Rightarrow x=20\ cm^3$

Sand $5x=5\times 20=100\ cm^3$

So, there is $100\ cm^3$ of sand in the mixture

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3 years ago

Gina looked at the architectural plan of a room with four walls in which the walls meet each other at right angles. The length o

Lerok [7]

For a better understanding of the solution provided here, please find the diagram attached.

In the diagram, ABCD is the room.

AC is the diagonal whose length is 18.79 inches.

The length of wall AB is 17 inches.

From the given information, we have to determine the length of the BC, which is depicted a $x$ , because for the room to be a square, the length of the wall AB must be equal to the length of the wall BC.

In order to determine the length of the wall BC, or $x$ , we will have to employ the Pythagoras' Theorem here. Thus:

$x=\sqrt{(AC)^2-(AB)^2}$

$x=\sqrt{(18.79)^2-(17)^2}\approx\sqrt{64.06} \approx8$

Thus, $BC\approx 8$ inches

$\therefore AB\neq BC$ and hence, the given room is not a square.

8 0

3 years ago

Brainliest to correct obv

Natalija [7]

Answer:

Step-by-step explanation:

If you multiply 7x6 and add two you will get an answer of 21

Hope it helps

5 0

3 years ago

Read 2 more answers

HELP DO IN A HOUR !!!

klemol [59]

Answer:

bro why did u take his points

Step-by-step explanation:

5 0

3 years ago