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shusha [124]
3 years ago
10

The ratio of boys to girls in a classroom is 7 to 11. If

Mathematics
1 answer:
Vesna [10]3 years ago
5 0

Answer:

Step-by-step explanation:

The ratio of boys to girls is

7

:

11

, and there are

49

boys, so therefore there are

49

7

⋅

11

=

77

girls

Total number of boys and girls in the classroom is

77

+

49

=

126

.

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Plot the intercepts to graph the equation. x+y=3
andrey2020 [161]

Answer:  You will have points plotted at +3 on the y axis, and +3 on the x axis.

The attachment shows what your graph should look like.

Step-by-step explanation:

The intercept is where the graphed line crosses an axis.

To find the y-intercept, substitute 0 for x and solve for y:

0 + y = 3.  Subtracting 0, you have y = 3

So you can plot a point at +3 on the y axis.

To find the x- intercept, substitute 0 for y, and solve for x

x + 0 = 3  Again, subtracting 0, x = 3

So plot a point on the x-axis at +3

Use the line tool to connect the two points.

5 0
3 years ago
Evaluate 6x + 11 when x = 7
nlexa [21]

Answer:

53

Step-by-step explanation:

To evaluate 6x + 11, we must substitute the value of x.

Since we know that x = 7, it is easier to evaluate the expression;

6x + 11

6(7) + 11

Since 6 is outside the parenthesis, we must multiply everything inside the parenthesis by 6;

6(7) + 11

42 + 11

When you add the two numbers you get:

53

4 0
3 years ago
Use multiplication to find three equivalent ratios<br> 11 : 9
dlinn [17]

11 : 9

×2 ×2

22 : 18

11 : 9

×3 ×3

33 : 27

11 : 9

×4 ×4

44 : 36

5 0
3 years ago
The ratio of isabellas money to shanes money is 3:11. If isabella has $33, how much money do Shane and Isabella have together?
solong [7]
The ratio of Isabella’s money to Shane’s money is 3:11

Isabella has $33.   

We can make a proportion to solve for how much money Shane has.   
A proportion is two ratios that are set equal to each other.  

Let’s call Shane’s money ‘S’   

We get this proportion:   3/11 = 33/x   

If we cross multiply we get:   
(33) * (11) = (3) * (x)   

Simplifying it, we get:
363 = (3) * (x)   

Divide both sides by 3, we get:
x = 121   

However, the question asks how much money they have together. 

Isabella + Shane = Total
33 + 121 = $154   

<span>They have $154 together.</span>
4 0
3 years ago
Andres was cutting some boards to build a bookshelf. He has a piece of wood that is 10 3/4 feet long. He wants to cut a piece th
ozzi

Answer:

8 and 1/4

Step-by-step explanation:

10 3/4 - 2 1/2

3/4 - 1/2 = 1/4

10 - 2 = 8

3 0
3 years ago
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