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aivan3 [116]
3 years ago
15

If x=5 and y=−2, evaluate the following expression:10+5xy​

Mathematics
2 answers:
Makovka662 [10]3 years ago
7 0

Answer:

- 40

Step-by-step explanation:

Substitute x = 5, y = - 2 into the expression

10 + 5xy

= 10 + 5(5)(- 2)

= 10 - 50

= - 40

Fittoniya [83]3 years ago
5 0

Answer:

-90

Step-by-step explanation:

10+5×5×(-2)

10+25×(-2)

10+(-100)

10-100

-90

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The Texas School Supply Company makes composition notebooks for students. The cost to manufacture 6 notebooks is $30. At this ra
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Answer:

Step-by-step explanation:

If it costs $30 to make 6 notebooks then that is $5 for each notebook. So multiply $5 times 50 and you get $250.

6 0
3 years ago
What is the next number in the pattern?
forsale [732]

Answer:

9

Step-by-step explanation:

3 3/4= 3.75.

3.75-2=1.75

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3 years ago
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mrs_skeptik [129]

Answer:

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3 years ago
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The perimeter of a rectangle is 158 cm. If the length is 7 more than 3 times the width:
Goryan [66]
Width of rectangle = x
Length =3x+7
Perimeter of rectangle = 158cm
2(l+w)=158
2(3x+7+x)=158
2(4x+7)=158
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8x=158-14
x=144/8
x=18
Therefore the width of the rectangle is 18cm
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8 0
3 years ago
What is the value of a?
dexar [7]

Answer:

a= 2x <u><em>(edit: i just forgot it should be a integer x.x, forgive my blondiness)</em></u>

Step-by-step explanation:

usually when doing equations like that, you can separate one of the parenthesis with 0

(in this case, we will use (2x-a) )

Then create a equation, which should look like:

2x-a=0

Then solve for a

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5 0
4 years ago
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