1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
antoniya [11.8K]
3 years ago
14

Need help!!! Worth 13 points!

Mathematics
1 answer:
alisha [4.7K]3 years ago
3 0
All you have to do is plug in the given values for a and b.

0.9a - 1.5b = ?

a = 15
b = 3

0.9 (15) - 1.5 (3)

= 13.5 - 4.5

= 9

Note:

•Integers are whole numbers.
For ex: 1, 2, 3, 4...

•Decimals have a period in between 2 numbers
For ex: 0.1, 0.2, 0.3

Sometimes when it’s concerning significant digits then decimals could also be
1.0, 2.0, 3.0 ... I wouldn’t worry about this right now until you get into higher years



You might be interested in
I really need help so please help me I'm completely lost
son4ous [18]
1,188 for surface area. If it's not about surface area I'm sorry bud
3 0
3 years ago
Read 2 more answers
The length of a rectangle is 3 in longer than its width.
grin007 [14]

Answer:

The first task in a word problem is to translate it into symbols.

First, give a name to each quantity:

Let w be the width of the rectangle

Notice the length = w+3

Let a be the area of the rectangle

Let p be the perimeter of the rectangle

Next, write down formulas relating the quantities

Step-by-step explanation:

a = w * (w+3)

p = 2w + 2(w+3)

We know p = 42, so

42 = 2w + 2(w+3)

im sure you know how to simplify and solve for w:

42 = 4w + 6

4w = 36

w = 9

now you’re ready to attack the area

a = w * (w+3) = 9 * (9+3)

can you take it from there?

5 0
3 years ago
Which is an example of incompatible goals?
andrey2020 [161]
1st answer, read it and then compare it to the other answers, it’s asking who cuz is not compatible with goals, first is the only one about goals or something your parents didn’t want TO DO. Sorry if I’m wrong
4 0
2 years ago
Solve: x(squared) = 5x - 6
icang [17]

Answer:

x=-3   x=-2

Step-by-step explanation:

x^2 = 5x-6

Subtract x^2 from each side

x^2 - x^2 = -x^2 -5x-6

0 = -x^2 -5x-6

0 =-(x^2 +5x+6)

Factor

0 = (x+3)(x+2)

Using the zero product property

0=x+3   0=x+2

x=-3   x=-2

7 0
3 years ago
Melanie's bedroom walls are painted 45 the area totals in 420 square feet hat is the number of square feet of Melanie's walls th
Lerok [7]

Answer:


Step-by-step explanation:

420 x 45 = 18,900


3 0
3 years ago
Other questions:
  • 1 3/5 / 5/8 find the quotient.
    7·2 answers
  • What are some words found in geometry that are hard to specifically<br> define
    12·1 answer
  • Describe how to find the selling price of an item that has been marked up 110%
    15·1 answer
  • The O! Natural Company is trying to get schools in the state to sell their juice product.
    8·1 answer
  • Help me! Need answers to questions ii and iii please. Thanks x
    6·1 answer
  • Find the image of the figure after a dilation with a point A as the centre by a scale factor of 0.75​
    9·1 answer
  • What angel do the minute and hour hands of s clock make at 9:00?
    13·1 answer
  • Can someone please solve this one? You can just give the answer and no explanation, I just need to get this in real quick.
    10·1 answer
  • Using the table find g(x) and use that to find g(-10)
    6·1 answer
  • In an aquarium 2/5 of the fish or surgeonfish. Of these, 3/4 are yellow tangs. what fraction of all fish in the aquarium or yell
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!