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2 years ago

The ratio of boys to girls in Mr. Trent's

Mathematics

1 answer:

goldenfox [79]2 years ago

4 0

Answer:

Step-by-step explanation:

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If x < 0 and y > 0, where is the point located

Solnce55 [7]

Answer:

rwrrwrwrr

Step-by-step explanation:

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3 0

3 years ago

Read 2 more answers

Fiona wrote the linear equation y = 2/5 x – 5. When Henry wrote his equation, they discovered that his equation had all the same

Hoochie [10]

we have

$y=\frac{2}{5}x-5$

Let's Isolate the variable y in each of the cases and then compare with Fiona's equation to determine the solution of the problem

case A) $x-\frac{5}{4}y= \frac{25}{4}$

Multiply by $4$ both sides

$4x-5y= 25$

$5y=4x-25$

Divide by $5$ both sides

$y=\frac{4}{5}x-5$

therefore

the case A) is not equal to Fiona's equation

case B) $x-\frac{5}{2}y= \frac{25}{4}$

Multiply by $4$ both sides

$4x-10y= 25$

$10y=4x-25$

Divide by $10$ both sides

$y=\frac{2}{5}x-2.5$

therefore

the case B) is not equal to Fiona's equation

case C) $x-\frac{5}{4}y= \frac{25}{2}$

Multiply by $4$ both sides

$4x-5y= 50$

$5y=4x-50$

Divide by $5$ both sides

$y=\frac{4}{5}x-10$

therefore

the case C) is not equal to Fiona's equation

case D) $x-\frac{5}{2}y= \frac{25}{2}$

Multiply by $2$ both sides

$2x-5y= 25$

$5y=2x-25$

Divide by $5$ both sides

$y=\frac{2}{5}x-5$

therefore

the case D) is equal to Fiona's equation

the answer is

$x-\frac{5}{2}y= \frac{25}{2}$

7 0

2 years ago

Read 2 more answers

QUICK QUICK QUICK QUICK I NEED ALL YOUR ANSWERS NOW UNDER 2 MINUTES ANSWER FIRST AND YOU WILL GET THE CHANCE TO BE THE BRAINLIES

juin [17]

Answer:

2 20/24

Step-by-step explanation:

divide 4/2=2

then do 5/8÷3/4=5/8×4/3=20/24

u basically inverse 3/4

2 20/24

7 0

2 years ago

A truck going 50 miles per hour

larisa86 [58]

Answer:

133.33 mph

Step-by-step explanation:

The small trick is to notice the time. Is it 8:00 AM the same day. We don't know, but we will assume it is.

So the truck was on the road for 2 hours.

The car was on the road for 2 - 1/2 = 1 1/2 = 1.5 hours.

The distance travelled was 200 miles

Solution

d = r * t

200 = r * 1.5

200/1.5 = r

r = 133.33 miles / hour

The noise you hear is a siren trying to catch up to the car.

7 0

2 years ago

Amir is operating a machine that adds sand to a concrete mixture. The machine adds 1/10 ton of sand to the mixture in 4/5 minute

zavuch27 [327]

for the above question, we can first convert the fractions to decimals to make it easier to work with

1/10 of sand - 0.1 ton

4/5 minute - 0.8 minute

Q1 -

ratio

0.1:0.8

since the ratio is in decimals we can convert it to whole numbers by multiplying by 10

1:8

Q2. amount of sand added in 0.8 minutes - 0.1 ton

amount of sand added in 1 minute - 0.1/0.8 = 0.125 tons

7 0

3 years ago