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prohojiy [21]
4 years ago
12

The difference when 7 less than a number is subtracted from twice the number 12. What is that number?

Mathematics
1 answer:
Anvisha [2.4K]4 years ago
6 0

Answer:

The number is 19

Step-by-step explanation:

7 less than a number = x - 7

2x - x - 7 = 12

Subtract x from 2x

x - 7 = 12

Add 7 to both sides of the equation

x = 19

The number is 19

Hope this helps :)

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Please help asap From their location in the diagram, what are two possible values for n and m?
sineoko [7]

Answer:

m equals √16, n= 3 1/2

Step-by-step explanation:

the one from the top right

4 0
4 years ago
Geometry Homework: Find m<Q
White raven [17]
Answer: angle Q = 75 degrees

--------------------------------------------

The tickmarks on segments PR and PQ indicate they are congruent, ie PR = PQ. Because of this, the base angles R and Q (opposite the segments mentioned) are congruent

Angle R = Angle Q
Since angle R is (2x+15) degrees, so is angle Q

Now use the idea that adding three angles of a triangle leads to 180 degrees
P+Q+R = 180
x+(2x+15)+(2x+15) = 180
5x+30 = 180
5x = 180-30
5x = 150
x = 150/5
x = 30

If x = 30, then angle Q is 
angle Q = (2x+15) degrees
angle Q = (2*x+15) degrees
angle Q = (2*30+15) degrees
angle Q = (60+15) degrees
angle Q = 75 degrees

5 0
3 years ago
You are baking brownies for your class. There are 28 total students in your class and you have baked 23 brownies. Write and solv
barxatty [35]

Answer:

2(28)=23+x

Step-by-step explanation:

There are 28 students and each student needs two brownies. You have to multiply 28 by 2 so you will have to total number on one side.

On the other you need to have the number of brownies you have at the moment and x for the number you need to bake. You want to add them because you will need to put those numbers together to get the number on the opposite side.

28x2=56 so 56=23+x. Subtract the 23 from both sides to get 33=x. x=33

To check plug 33 into x to get 2(28)=23+33. 56=23+33. 56=56

you need 33 more brownies.

So the equation would be 2(28)=23+x.

Hope that helps.

3 0
3 years ago
Ratio of red marbles to blue marbles is 2:3. If there are 6 red marbles, how many blue marbles are there
miskamm [114]

Answer:

6:9

Step-by-step explanation:

Lets assume the relationship between the amount of blue and red marbles are proportional. If there are 6 red marbles , then we would need need to find out how much times you multiplied 2 by to get.

6/2 is 3, which means that you multiplied the red marbles by 3 to get 6 of them.

Since the relationship between red and blue marbles is equivalent, we just need to multiply the blue marbles by 3 as well, to even it out.

3x3=9

There are 9 blue marbles if there are 6 red marbles.

5 0
3 years ago
20% of 250 students ate pizza for lunch how many students ate pizza
Svetlanka [38]

Answer:

The answer would be 50

Step-by-step explanation:

.20 x 250 = 50

7 0
3 years ago
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