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TiliK225 [7]
3 years ago
12

Please help me with this math question. Help me check my answer and I need help with b​

Mathematics
1 answer:
pickupchik [31]3 years ago
3 0

Answer:

The work shown here is correct.

It simplifies to 17x + 36y + 5.

Step-by-step explanation:

In this situation, there are four different items being purchased. This means their will be a sum of 4 terms. Each term will be the number of the item times its cost. When added together, the four terms will represent the total cost.

7 pens at $x is 7x

5 pens at $(2x+3) is 5(2x+3)

y pens at $6 is 6y

(3y-1) pens at $10 each is 10(3y-1)

All together the cost expression is 7x + 5(2x+3) + 6y + 10(3y -1).

Simplify by applying the distributive property and combine like terms.

7x + 10x + 15 + 6y + 30y - 10

17x + 36y + 5

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Question 1 (1 point)
s2008m [1.1K]

Answer:

d. -18

Step-by-step explanation:

f(-3) = 10x - 3x + 3

10(-3) - 3(-3) + 3

-30 + 9 + 3

-30 + 12

= -18

Please mark me the Brainliest!?!

8 0
3 years ago
If x =5 and y = 2,work out the value of <br><br> 2x²
8_murik_8 [283]

Answer:

50

Step-by-step explanation:

2(5)^2=2(25)=50

4 0
3 years ago
What is the slope of the line through (3, 2) and (-3,4)?​
Andre45 [30]

Answer:

Choice A. -3

Step-by-step explanation:

Using the x1-x2/ y1-y2 u fill in. So it would be 3-(-3) (x-axis) and 2-4 (y-axis).

So when u do both of those you are left with 6/-2.

When u simplify 6/-2 you get -3.

4 0
4 years ago
Read 2 more answers
Triangle FGH, with vertices F(2,-8), G(7,-7), and H(6,-4), is drawn inside a rectangle, as shown below.
Semmy [17]

The area of the triangle FGH is 13√10 unit²

Given,

The vertices;

F(2, -8), G(7, -7), H(6, -4)

We have to find the area of the triangle.

Area of triangle = 1/2bh²

Here,

Area of triangle FGH = 1/2 (GH) (FG)²

Now,

Length of FG = \sqrt{(7-2)^{2} =(-8--7)^{2} }  = \sqrt{5^{2}+1^{2}  }  = \sqrt{25+1} = √26

Length of GH = \sqrt{(-7--4)^{2}+(7-6)^{2}  } = \sqrt{-3^{2}-1^{2}  } = \sqrt{9+1} = √10

Then,

Area of triangle FGH = 1/2 (GH) (FG)²

Area of triangle FGH = 1/2 × √10 × √26²

Area of triangle FGH = 1/2 × √10 × 26

Area of triangle FGH = 13√10

Therefore,

The area of the triangle FGH is 13√10 unit²

Learn more about triangle here;

brainly.com/question/12949215

#SPJ1

5 0
1 year ago
a 3D printer can print 5 phone cases in hundred and 50 minutes at this rate how many phone cases can be printed in 750 minutes
garik1379 [7]

Answer:

It should be 25.

Step-by-step explanation:

If you divide 750 by 150 you get 5, then you multiply 5 by 5 and get 25.


3 0
3 years ago
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