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motikmotik
3 years ago
10

Evaluate the following algebraic expression: 2 x + y for x = 1 and y = 1​

Mathematics
1 answer:
12345 [234]3 years ago
8 0

Answer:

3

Step-by-step explanation:

2*1+1

2+1

3

how this helps :)

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3x-8= 4
BabaBlast [244]
I think the answer is D but i could be wrong
4 0
2 years ago
Read 2 more answers
A rectangular cake has a length of 22 1/2 inches and a width of 10 inches. How many whole, square pieces of cake with side lengt
faltersainse [42]
Well, we need to find the area of the cake.  22.5 times 10 is 225.  That is the area then we need to find the area of each piece of cake.  2.5 times 2.5 is 6.26.
so divide the area of the cake by the area of each piece to find how many pieces can be cut.
225/6.25=36  36 pieces of cake can be cut from the cake
5 0
3 years ago
I need help please it is Geometry
natka813 [3]

Answer:

x = 52

Step-by-step explanation:

The external angle of a triangle is equal to the sum of the 2 opposite interior angles.

∠ PQS is an external angle of the triangle, thus

x + 72 = 90 + 34 = 124 ( subtract 72 from both sides )

x = 52

7 0
2 years ago
Help.. or die.. you decide.
Studentka2010 [4]

Answer:

<u>Problem 1:</u>

x = 12 unit ; y = 120 ; z = 60 ; perimeter = 58 unit

<u>Problem 2:</u>

FG = 16 unit ; EG = 2√153 unit ; y = 5 unit

Step-by-step explanation:

<u>Problem 1</u>

Since ABCD is a parallelogram. so,

∠ABC = ∠ADC  [Since opposite angles of a parallelogram are equal]

but, ∠ADC = 120° [given]------------(1)

So, ∠ ABC = y° = 120° ----------------(2)

Again, sum of two consecutive angles of a parallelogram is, 180°, so,

∠BCD + ∠ADC = 180°

So, ∠BCD =z°  =  180° - 120° = 60° [Putting the value of ∠ADC from (1)]-----(3)

Again, since opposite sides of a parallelogram are equal,

so, BC = AD

⇒ (x + 5) = 17

⇒ x = 12------------------------(4)

So, AB = 12 unit , AD = 17 unit

So, the perimeter of the parallelogram is given by,

2(AB + AD)

= 2 \times (12 + 17)  unit

= 58 unit --------------------------------------------------------------(5)

<u>Problem 2</u>

Perimeter of parallelogram EFGH = 52 unit

So, 2(EH + GH) = 52 unit

⇒ 2 ( x + x + 6) = 52

⇒ 4x = 40

⇒ x = 10

Now,  FG = EH [since opposite sides of a parallelogram are equal]

            = (x + 6) unit

            = (10 + 6) unit = 16 unit ------------------------------(1)

Again for a parallelogram, the diagonals bisect each other.

so, EG = 2 \times \sqrt{153}

           = 2√153 unit -----------------------------------------(2)

and,

3y - 10 = y

⇒ y = 5 -----------------------------------------------(3)

5 0
3 years ago
Mrs.Silva orders 5 pizzas for every 20 students working on the campus clean up. How many pizzas should she order if 48 students
erica [24]

Answer:

She should order 12 pizzas.

Step-by-step explanation:

5 pizza for every 20 students gives us the ratio 5:20.

5/20 = 0.25 = the amount of pizza each student gets.

If there are 48 students, you would just multiply 0.25 * 48 to get your answer.

3 0
2 years ago
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