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ad-work [718]
3 years ago
13

4a + 3a Please solve I will give brainliest to first answer!

Mathematics
2 answers:
lubasha [3.4K]3 years ago
5 0

Answer:

7a

Step-by-step explanation:

Dimas [21]3 years ago
3 0

Answer:

7aa

Step-by-step explanation:

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Input output please
dlinn [17]

Step-by-step explanation:

  1. 89
  2. 81
  3. 50
  4. 83
  5. 295

<h2>hope it helps.</h2><h2>stay safe healthy and happy.</h2>
8 0
2 years ago
PLEASE HELP WITH QUESTION C
GalinKa [24]

Answer:

Discount: 25%

Tax: 6.5%

Step-by-step explanation:

Percentage of discount:

x/100 = 10/39.99 (what percentage is 10 of 39.99) (%/100=is/of)

= 25%

Percentage of tax:

x/100 = 1.95/29.99

= 6.5%

8 0
2 years ago
if the volume of a rectangular prism is 560 cubic units, what is it's volume if one dimension is halved, a second dimension is r
Margaret [11]
70 cubic units.
___________
5 0
3 years ago
Please help me with this math word problem
hjlf
Answer: The cost of 16 pencils and 10 notebooks is $5.84.


Explanation: You can solve this using linear systems:

Let X be the cost per pencil, and let Y be the cost per notebook.

(1) 7x+8y=4.15
(2) 5x+3y=1.77

Choose a variable to eliminate. I’ll eliminate X first as an example. To eliminate a variable, you must have the same coefficient beside the variable for both equations.

Equation 1 now becomes:

(3) 35x+40y=20.75

Equation 2 now becomes:

(4) 35x+21y=12.39

Now that you have 35 as a coefficient for X in both equations, you can subtract the two equations to officially eliminate it!

(3)-(4)

19y=8.36
y=0.44

Now that you have the value of Y, substitute that value into either one of the equations to get X.

Substitute y=0.44 in (1)

7x+8(0.44)=4.15
7x+3.52=4.15
7x=0.63
x=0.09

Therefore, the cost per pencil is $0.09/pencil and the cost per notebook is $0.44/notebook.

Almost done lol...

To find the cost of 16 pencils, multiply 0.09*16. That gives you $1.44, which will be the cost of 16 pencils.
The cost of 10 notebooks is 0.44*10, which gives you $4.40. That’s the cost of 10 notebooks.

To find the total price, add these values together!

1.44+4.40=5.84

Therefore, the cost of 16 pencils and 10 notebooks is $5.84.

Hope that helps シ
3 0
3 years ago
Mark all of the statements that are true.
Kipish [7]
The statements that are true are:

<span>a. The range for this function is the set {3}.      [range is the value of y, here the value of y is 3 for all value of x]
</span>
<span>c. The domain for this function is all real numbers.      [the domain is the value of x, as you can see, the graph span all the x axis]</span>

5 0
2 years ago
Read 2 more answers
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