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Rainbow [258]
4 years ago
13

Please help!

Mathematics
1 answer:
Paul [167]4 years ago
7 0

Answer:

We can check this two ways: distributing the -0.5, and plugging in a number for x.

First, we can check this by distributing the -0.5.  Our equation becomes:

-1.5x -2.5 = -1.5x + 2.5

Clearly, this is not true.  We can show this one more time by plugging in a number for x.  I will use 2.

Now, we evaluate both sides and see if they are equal.

-3 - 2.5 = -3 + 2.5

-5.5 = 0.5

Clearly, this is not true.  These expressions are not equivalent.

Step-by-step explanation:

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What is the equation of the line that contains the point (1/2,-3) and a slope of -3
arsen [322]

Answer:

y+3=-3(x-\frac{1}{2} )

Step-by-step explanation:

4 0
3 years ago
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
Free points and brainlist .help me with this
emmainna [20.7K]

Answer:

The better buy is the Grandma's Cookies

Step-by-step explanation:

<em>Grandma's Cookies</em>

30 divided by 14.75 = 2.033898305

<em>Sweet Treats</em>

25 divided by 10.75 = 2.325581395

Hope this helps! :D

6 0
3 years ago
Read 2 more answers
WILL GIVE BRAINLIEST ANSWER
Ad libitum [116K]
<span>2² + 4² ÷ 2<span>²

4 + 16 </span></span>÷ 4

4 + 4

8
7 0
3 years ago
Read 2 more answers
Write and solve an equation to represent the following situation: an electrician earns an hourly wage of $13.50 plus a $75 bonus
Bingel [31]
149.25=13.5h+75
(149.25-75)/13.5=5.5=h
8 0
3 years ago
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