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3 years ago

8 + 12n – 4n – 7 Another problem pls dont troll or i will report you :)

Mathematics

1 answer:

loris [4]3 years ago

5 0

Answer:

Step-by-step explanation:

Do u see any similarities between the numbers? Both 12 and -4 have a variable(N). 8 and -7 dont have a variable, so u have to calculate them individually.

One thing to remember is just because there is a minus sign(-) or a plus sign(+) does not mean its addition or subtraction. its the value of the number. the sign to the left of the number is its value. so left of 12 is plus(+), so its a positive. left of 4 is a minus sign(-) so its a negative 4. lastly, left of 7 is minus sign(-), which means its negative 7. now u add.

lets add the variables first:

12n + (-4n) = 8n

add the regular numbers:

8 + (-7) = 1

so its 8n + 1

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What does a equal a/6 = 15/2

OlgaM077 [116]

Answer:

a = 45

Step-by-step explanation:

Cross multiply: 2a =90

Divide both sides by 2: 45

I hope this helped, please mark Brainliest, thank you!

4 0

3 years ago

5. A farmer puts apples into 36 crates. Each crate has 25 kilograms of apples in it. She sells 486,235 grams of apples. How many

Lynna [10]

There would be 413,765 kilograms after selling 486,235 grams of apples

How many grams make a kilogram?

In each kilograms, there are 1,000 grams, which means we need to first of all convert the total number of apples in kilograms to grams.

Each crate has 25 kilograms of apples in it

1 crate =25 kilograms

36 crates=36*25 kilograms

36 crates=900 kilograms

1 kilogram=1000 grams

900kilograms=1000*900

900 kilograms=900,000 grams

The number of grams left after having sold 486,235 grams of apples, in essence, the quantity of apples left thereafter is 900,000 grams minus the 486,235 grams of apples sold

apples left=900,000-486,235

apples left= 413,765 kilograms

Find out more about conversion of kilograms to grams on:brainly.com/question/9301317

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8 0

1 year ago

Jasmine rides her bike 9 miles in 50 minutes. what is jasmines speed per hour

Firdavs [7]

Given:

Given that Jasmine rides her bike 9 miles in 50 minutes.

We need to determine the speed per hour.

Time per hour:

The time taken is 50 minutes. We need to convert minutes into hours.

Thus, we have;

$\frac{50}{60}=\frac{5}{6} \ hr$

Thus, the time taken to cover 9 miles is $\frac{5}{6} h r$

Speed:

The speed can be determined using the formula,

$Speed =\frac{Distance}{Time}$

Substituting the values, we have;

$Speed =\frac{9}{(\frac{5}{6})}$

Simplifying, we get;

$Speed =9 \times {\frac{6}{5}}$

$Speed =\frac{54}{5}$

$Speed = 10.8$

Thus, Jasmine's speed is 10.8 miles per hour.

3 0

3 years ago

Josh rides his bike along a 9 mile trail. There are trail markers every 1/3 mile. The marker starts at 1/3 mile and ends at 9 mi

ValentinkaMS [17]

I think the answer is 27 because 9 x 3=27 so you have 27/3 which is equal to 9

8 0

3 years ago

Someone answer this I’ll give you all my points

mote1985 [20]

Answer:

Equation; y = - x + 3

Step-by-step explanation:

To determine the equation, let us first determine the slope of the line, through the equation ( y2 - y1 ) / ( x2 - x1 ), in this case where y2 ⇒ 1, y1 ⇒ 5, x2 ⇒ 2, and x1 ⇒ -2;

( 1 - 5 ) / ( 2 - ( - 2 ) ) ⇒ Simplify,

( - 4 ) / ( 4 ),

Slope; - 1

Now that we have the slope, let us substitute this known value into the point - slope equation in the following form;

y = a * x + b, where a ⇒ slope, and b ⇒ y - intercept,

( So far we have ) y = - x + b,

Let us solve for the value of b in y = - x + b by substituting one of the points, say ( 2 , 1 ) where x ⇒ 2, and y ⇒ 1;

( 1 ) = - ( 2 ) + b,

1 = - 2 + b,

b = 3;

Equation; y = - x + 3

8 0

3 years ago