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Alenkasestr [34]
2 years ago
5

Is a letter that is used to represent a number.

Mathematics
1 answer:
Novay_Z [31]2 years ago
7 0

Answer:

variable

Step-by-step explanation:

A variable is a American, Latin, Greek etc letter used to represent an unknown.

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Given x=-3, y=6, and z=-4<br> -15+(-x)+y=
Alexus [3.1K]

Answer:

-6

Step-by-step explanation:

We are given x=- 3 , y= 6 and z= -4.

We are also given the expression:

-15 + (-x) +y

Substitute -3 in for x and 6 in for y.

-15 + (- -3) + 6

2 negative signs creates a positive sign

-15 + (+3) +6

-15 + 3+ 6

Add -15 and 3.

(-15+3) +6

-12 +6

Add -12 and 6.  

-6

-15+(-x)+y evaluated at x= -3 and y=6 is equal to -6.

5 0
3 years ago
Solve y=.80x+100 based on bread machine costs 100. Ingredients for one loaf is .80 and what is the cost to make 50 loaves of bre
Ugo [173]
Substitute 50 loaves into the given equation

y= cost to make 50 loaves

y= 0.80x + 100
y= 0.80(50) + 100
multiply first, then add
y= 40 + 100
y= $140 cost to make 50 loaves

Hope this helps!
6 0
3 years ago
at wassamatta university, 55.7% of the student body are males. choose one student at random. what is the probability that the st
Nitella [24]
100% - 55.7%

= 100% - 55% - 0.70%

= 45% - 0.70%

= 44.30%

-----------

This means that the probability of selecting a female student at random is 44.3% as a percentage.
7 0
3 years ago
Read 2 more answers
The ancient Greeks were ultimately able to prove that the constructions they thought impossible were, in fact, impossible. A. Tr
adelina 88 [10]
F.. took this test last week
7 0
3 years ago
Read 2 more answers
I need the answer to this❤️
KATRIN_1 [288]

Answer:

5/2x, 5/2 y

Step-by-step explanation:

An enlargement means the scale factor must be greater than one

The only choice with a scale factor greater than one is 5/2x, 5/2 y

5 0
3 years ago
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