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quester [9]
3 years ago
8

Demarco wrote two correct variable expressions to represent the phrase “the product of a number and 7.” Which of these variable

expressions could Demarco have written? Choose exactly two answers that are correct. Question 1 options:
a. n x 7
b. 7n
c. n/7
d. 7/n
Mathematics
1 answer:
enot [183]3 years ago
4 0
A and b because the "product" is the answer to multiplication, and those are the only answers where 7 and n are being multiplied. Answer b is technically more correct than a is because the coefficient should come before the variable.
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Why does this make sense? a. You use the power of a product law of exponents to combine the exponents; this law says to add the
Molodets [167]

Answer:

You use the product of powers law of exponents to combine the exponents; this law says to add the exponents.

Step-by-step explanation:

got it right

8 0
3 years ago
A sandwich store charges a $10 delivery fee and $4.50 for each sandwich is there a proportional relationship between X number of
noname [10]
No because a person can buy as many sandwiches as possible and only pay a $10 delivery fee.

=(4.5)x + 10
3 0
3 years ago
I️ need help with the your turn part
Helen [10]

Because the angle is a straight angle, it means that the total of DEC and CEF would be 180º. (CEF + DEF = 180º) With this information we can make the equasion:

(11x - 12) + (2x + 10) = 180

first, to find x:

to simplify (11x - 12) + (2x + 10) = 180, you add the two equations:

13x - 2 = 180

13x = 182

x = 182/13

x = 14

Now, insert the x (which we found that is 14) to each equation.

DEC: (11 x 14 - 12)

= 154 - 12 = 142

m DEC is 142º.

CEF: (2 x 14 + 10)

=28 + 10 = 38

m CEF is 38º.

<em>check: (CEF + DEC = 180º)</em>

<em>38 + 142 = 180 </em>

therefore, the answers are correct :D

7 0
3 years ago
Samantha has a 15 gallon fish tank. She is filling it using a 1 quart container. How many times will she have to fill the contai
Goryan [66]

Answer:

She will fill the container after 60 times

Step-by-step explanation:

Given data:

15 gallon to be filled

1 quart container

There are 4 quarts in 1 gallon

Therefore 15 gallons will have (4 * 15) quarts = 60 quarts

She will fill the container after 60 times

5 0
4 years ago
Can a rhombus be inscribed in a circle? Why or why not?
kati45 [8]

Answer:

b

Step-by-step explanation:

it isn't c because theres a theorem that says that opposite angles in a parallelogram are congruent

it isn't d because if the opposite angles are 90 and 90 they are supplementary

a is correct, but for the wrong reason

its b

5 0
3 years ago
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