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ludmilkaskok [199]
3 years ago
9

Write and evaluate the expression.

Mathematics
2 answers:
Zielflug [23.3K]3 years ago
7 0

The expression to represent the phrase is 19/n - 7

The value of the expression when n = 2 is 2.5

nadezda [96]3 years ago
6 0
seven less than the quotient of nineteen and a number.
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A rectangle has a length at least four more than five times the width. if the perimeter is at least 44 units. find the least pos
Eva8 [605]
The answer is 3 and you get that by using the formula for the area of rectangle, p=2L+2W
44=2(4+5w) + 2w
44=8+10w + 2w
44=8+12w
44-8=8+12w-8
36=12w
36/12=12w/12
3=w
If you plug 3 back into the original formula then you see that it is equal to the perimeter of 44
P=2(4+5w) + 2w
P=2(4+5•3) + 2(3)
P=2(19) +6
P=38+6
P=44
8 0
3 years ago
4.2z + 3.8z simplify the expression ​(Use the operation symbols in the math palette as needed. Simplify your answer. Use whole n
alexandr1967 [171]

Answer:

8z

Step-by-step explanation:

Since these are like terms, add the numbers together and then put the z on.

4 0
3 years ago
Rita started the day with r apps. then she deleted 5 apps and still had twice as many apps as Cora has. write an equation that r
lianna [129]

Answer:

Rita had r apps as the start of the day

After she deleted 5 apps,

equation for apps of cora = (r-5)

Equation for apps of Rita = 2 (r-5)

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Help please!
kupik [55]

Answer:

that is a whole lot of simple intrest

7 0
3 years ago
Solve each system by elimination. substitution by multiplication
umka2103 [35]
M = 135/19 and n = -5/19

You have to give them like terms so that when you eliminate they cancel out and you can solve. The easiest way to do so is by multiplying the top equation by -4 and the bottom by 3. 
4 0
3 years ago
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