All categories

3 years ago

What is the value of x in the equation x - y = 30, when y = 15? O4 O 8 O 80 O 200

Mathematics

1 answer:

olganol [36]3 years ago

6 0

$\frac{1}{5}x - \frac{2}{3} y = 30 \\$

Putting the value of Y = 15

$\frac{1}{5} x - \frac{2}{3} \times 15 = 30 \\ \frac{1}{5} x = 30 + 10 \\ \frac{1}{5} x = 40 \\ x = 5 \times 40 \\ x = 200$

So, X = 200

You might be interested in

Burning one gallon of gasoline releases 20 pounds of CO2 into the air. Harry's compact car can travel 25 miles on one gallon of

maks197457 [2]

It was given that

1 gal = 20 lbs of CO2
1 gal = 25 miles distance

Thus,

15000 miles/year ( 1 gal / 25 miles ) ( 20 lbs CO2 / 1 gal ) = 12000 CO2

If Harry drives 15,000 miles per year, his vehicle will add 12000 pounds of CO2 to the atmosphere.

7 0

3 years ago

Read 2 more answers

The freezing point of methanol is -97.6. What is the freezing point of methanol in Fahrenheit

motikmotik

Answer:

-143.68°F

Step-by-step explanation:

Celsius to Fahrenheit Conversion Formula: F = 1.8C + 32

Simply plug in c as -97.6:

F = 1.8(-97.6) + 32

F = -175.68 + 32

F = -143.68

3 0

3 years ago

Read 2 more answers

Help me answer this question please

enot [183]

Figure D could be formed from the net.

(bottom right)

-Because-

The net says that the middle shape (the bottom face) is 14 long, and it is 8 tall. So the only option that makes sense is the bottom right!

feel free to mark brainliest! :)

5 0

4 years ago

Help me pleaseeeeeeEEEEEE

Sliva [168]

15. 22=4*5+2
16. 23=3+4*5

7 0

2 years ago

A drawer contains 3 white balls and 6 black balls. Two balls are drawn out of the box at random. What is the probability that th

Rus_ich [418]

Answer: Probability = 44%

Step-by-step explanation:

To find the probability of finding 2 black balls in a row, we first need to find the probability of finding 1 black ball at a time.

To do that, we need to divide the amount of total black balls by the number of total balls.

Black balls = 6

Total balls = 3 + 6 = 9

6 divided by 9 = 0.(6)

If you multiply 0,(6) by 100%, it will give you 66% (rounded) of getting a black ball.

Now, to find the chances of getting 2 black balls in a row, we need to multiply $\frac{6}{9}$ by $\frac{6}{9}$ . What we are doing is squaring the chances of getting one black ball, by the number of times we want to get it.

That is equal to 0,(4)

Multiply 0,(4) by 100%, and it will give you 44%(rounded) chances to get a black ball 2 times in a row.

Probability = 44%

Hope I Helped!

5 0

2 years ago