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sveticcg [70]
4 years ago
8

Please help. Question 4.

Mathematics
1 answer:
Oksana_A [137]4 years ago
7 0
I know that the first one is the (sum) of a number x and 8.1 but im not sure about the rest im sorry

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Rachel spent $38 for dinner. This was $10 less than 3 times what she spent for a movie. How much was the movie?
MatroZZZ [7]
So, first you subtract 10 from 38 which gives three times of the money spent for the movie. Then you divide 3 from it to give you the answer.

38-10 = 28
28/3 = 9.37 dollars
6 0
3 years ago
Six students are working to simplify the expression shown.
KatRina [158]

Answer:

First one Equivalent but not simplified fully (Can combine the two y terms)

Second: Equivalent but not simplified fully (Can combine the two x^2 terms)

Third: Equivalent and simplified fully

Fourth: Not equivalent (y term is not correct)

Fifth: Not equivalent (x^2 term is not correct and the constant terms [ones without variables] can be combined)

Sixth: Not Equivalent (y term is not correct and the constant terms can be combined)

Step-by-step explanation:

You just need to know if two terms have the same variable they can be added or subtracted.  But if it is say x and x^2 it cannot, they need to be brought to the same power as well.  or if there is a term with xy, it can only be added and subtracted to other xy terms

7 0
4 years ago
Read 2 more answers
Terry has 25 bills. He has ten-dollar bills and fifty-dollar bills
dexar [7]

Answer: He can have 12 fifty-dollars bills and 7 ten-dollar bills.

Step-by-step explanation:

12*50=700

7*10=70

      _____+

       770

3 0
4 years ago
(3x+4)^3=2197 solve this equation
Burka [1]
(3x + 4)³ = 2197

Taking the cube root in this case is easier, although we can do it the extended way which is complicated.

\sqrt[3]{(3x+4)^3} = \sqrt[3]{2197}
3x + 4 = 13

Now solve normally.

subtract 4
3x + 4 = 13
       -4    -4

3x = 9
Divide by 3 to isolate 3

\frac{3x}{3}  =  \frac{9}{3}
3 and 3 cancels out

x = 3
7 0
4 years ago
Read 2 more answers
The sum of two numbers is at most 12, and the sum of 3 times the first number and 8 times the second number is at least 48 selec
Sever21 [200]

Answer:

(4,8)

Step-by-step explanation:

4 + 8 = 12

3(4) + 8(8)

= 12 + 64

= 76

6 0
3 years ago
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