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Pavlova-9 [17]
3 years ago
14

The difference of a number m and 18 how would you write a algebraic expression ​

Mathematics
1 answer:
Tpy6a [65]3 years ago
6 0

Answer:

m - 18

Step-by-step explanation:

Symbolically, that difference would be written as m - 18.

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The ratio of cars to trucks is 9:4. The ratio of trucks to SUV's is 12:21. There are 54 cars.
Elenna [48]

Answer:

Number of trucks = 24

Number of SUVs = 24

Step-by-step explanation:

A)

The ratio of cars to trucks is 9:4

The total ratio of cars to trucks is

9+4 = 13

Let x = sum of cars and trucks.

There are 54 cars. Therefore,

x = 54 + t trucks

Number of cars = ratio of cars/ total ratio × sum of cars and trucks. This means,

54 = 9/13 × x

9x / 13 = 54

9x = 13 × 54

9x = 702

x = 702 / 9 = 78

x = 54 + t trucks = number of trucks = 78 = 54 + t trucks

t trucks = 78 - 54 = 24

Number of trucks = 24

B)

The ratio of trucks to SUVs is 12:21

The total ratio of cars to trucks is

12 + 21 = 33

Let y = sum of trucks and SUVs

There are 24 trucks. Therefore,

x = 24 + s SUVs

Number of trucks = ratio of trucks / total ratio × sum of trucks and SUVs. This means,

24 = 12 / 33 × y

12y / 33 = 24

12y = 24 × 33

12y = 792

y = 792 / 12 = 66

y = 24 + s SUVs

66 = 24 + s SUVs

s SUVs = 66 - 24 = 42

Number of SUVs = 24

7 0
3 years ago
To prove part of the triangle midsegment theorem using the diagram, which statement must be shown
Alenkinab [10]

Answer:

The length of GH is half the length of KL.

Full question...

To prove part of the triangle midsegment theorem using the diagram, which statement must be shown?

The length of JK equals the length of JL.

The length of GH is half the length of KL.

The slope of JK equals the slope of JL.

The slope of GH is half the slope of KL.

So once again the answer is the second one: The length of GH is half the length of KL.

8 0
3 years ago
Read 2 more answers
Use an array or an area model to illustrate how to solve this equation. Then, explain each part of the
valentina_108 [34]

Answer:

870

Step-by-step explanation:

Array model shown below along with description (at the bottom).

3 0
3 years ago
Find the greatest common factor of 15a^3 and 25b^4
Ivenika [448]
The GCF is 5
Hope this helps
4 0
3 years ago
A jar contains 4 red marbles numbered 1 to 4 and 8 blue marbles numbered 1 to 8. A marble is drawn at random from the jar. Find
Monica [59]

Answer:

because blue is many.

Step-by-step explanation:

3 0
3 years ago
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