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fredd [130]
3 years ago
10

Need help with questions 5 and 6

Mathematics
1 answer:
kirza4 [7]3 years ago
7 0

Answer:


Step-by-step explanation:


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Write an expression that is equivalent to 3(2t+6)-4t.
Ber [7]
6t+12-4t
Use the distribution property.
8 0
2 years ago
Question
puteri [66]

Answer:

The salt concentration of the mixed solution = 10%

Step-by-step explanation:

First assuming that the concentration of salt given is on a vol% basis.

First solution has 0.7 gallon of 5% salt

Amount of salt in this solution = 5% × 0.7 = 0.035 gallon

Second solution has 0.3 gallon of 22% salt

Amount of salt in this solution = 22% × 0.3 = 0.066 gallon

Total amount of salt in the resulting solution = 0.035 + 0.066 = 0.101 gallon

Total volume of the resulting solution = 0.7 + 0.3 = 1.00 gallon

Concentration of the mixture of salt = (0.101/1) = 0.101 = 10.1% = 10% to the nearest percent

Hope this Helps!!!

3 0
2 years ago
Which is the sum of 3.15 × 107 + 9.3 × 106? Write your answer in scientific notation.
BartSMP [9]

Answer:

Scientific Notation:

1.32285 × 10^3

E-Notation:

1.32285e3

Engineering Notation:

1.32285 × 10^3

Real Number:

1322.85

Step-by-step explanation:

7 0
3 years ago
If your good in math please help me
Feliz [49]

Answer:

350.82

Step-by-step explanation:

To find the surface area, you must add up all of the areas of each shape of the prism in order to get the sum surface area.

The rectangle's area (lw):

7.21*14=100.94

The triangle's area (\frac{1}{2}bh):

\frac{1}{2} (6)(8)

\frac{1}{2} (48)=24

Now add up all the sides. (3 Rectangles, 2 Triangles.)

100.94 + 100.94 + 100.94 + 24 + 24

=350.82

The total surface area is 350.82 cm squared.

6 0
3 years ago
What is the axis of symmetry equation from f(x)=-x^(2)-6x
Sergeeva-Olga [200]

Answer:

  • \lim_{n \to \infty} a_n13

Step-by-step explanation:

6 0
3 years ago
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