4 years ago

HELP HELLP HELP MEH I NEED 16 MORE CLASSES LEFT FOR SCHOOL LET IT BECOME 15 PLEASE

Mathematics

1 answer:

vodomira [7]4 years ago

8 0

Answer:

2*2*9+4*12*3=36+144=180

Step-by-step explanation:

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Is 3x+4y=12 a function or not? Explain

DiKsa [7]

Yes , a relation from set X to set Y is a function .

4 0

3 years ago

A pile of sand has a weight of 90 kg the sand is put into a small bag a medium bag and a large bag in the ratio 2:3:7

romanna [79]

Answer:

15 kg, 22.5 kg, 52.5 kg

Step-by-step explanation:

Let the common multiplier of the given ratios be x. Therefore, weights of each bag would be 2x, 3x and 7x

According to the given information:

$2x + 3x + 7x = 90 \\ 12x = 90 \\ x = \frac{90}{12} \\ x = 7.5 \: \\ \implies \\ 2x = 2 \times 7.5 = 15 \: kg \\ 3x = 3 \times 7.5 = 22.5 \: kg \\ 7x = 7 \times 7.5 = 52.5 \: kg$

Hence the weight of sand in bag would be 15 kg, 22.5 kg and 52.5 kg

3 0

4 years ago

What is the solution to the equation x over 3 + x over 6 = 7 over 2

Romashka [77]

Answer:

x=7

Step-by-step explanation:

The given equation is:

$\frac{x}{3}+\frac{x}{6} = \frac{7}{2}$

Multiplying both sides by LCM of 3 and 6

So,

$\frac{x}{3}*6+\frac{x}{6}*6 = \frac{7}{2}*6\\2x+x=7*3\\3x=21\\\frac{3x}{3} =\frac{2}{3}\\ x=7$

Hence, the solution of the equation is x=7 ..

7 0

4 years ago

Read 2 more answers

Which calculation can be used to find the value of y in the equation y^3 = 27?

Alex Ar [27]

Y = cube root of 27
another answer is
<span>y equals square root of 27 divided by 3
Provided it is </span><span>square root of (27 divided by 3)
</span>

7 0

4 years ago

What percent of 1 3/5 is 0.2 and what percent of 2 is 0.2?

natulia [17]

Answer:

1 3/5 = 8

2 = 10

Step-by-step explanation:

1 3/5 is 1.60 in decimal form so divide 1.6/0.2

2 is 2 so divide that by 0.2

6 0

3 years ago