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777dan777 [17]
3 years ago
13

Use the elimination method to solve the system of equations.

Mathematics
2 answers:
AnnZ [28]3 years ago
6 0
The answer is A.
x= 3/5 or 0.6 and y= 2
Alborosie3 years ago
5 0
<span>   5x + 2y = 7 
+
   −5x + 4y = 5 
____________

6y = 12
y = 12/6
y = 2

</span>5x + 2y = 7 
5x + 2*2 = 7
5x + 4 = 7
5x = 7 - 4
5x = 3
x = 3/5

<span>A. ( 3/5, 2) </span>
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On average, Tony the turtle completes a 15-foot course in 1 minute, and Antonio the turtle completes an 18-foot course in 1 minu
marishachu [46]

Answer:

15 feet.

Step-by-step explanation:

Tony's speed = 15 ft/min.

Antonio's = 18 feet /min.

So in 5 minutes Tony travels 5*15 = 75 feet and Antonio travels 5*18 = 90 feet.

So the answer is 90-75 = 15 feet.

8 0
3 years ago
What is the surface area of the rectangular pyramid
posledela

Answer:

<h2>41.74 m²</h2>

Step-by-step explanation:

We have:

rectangle 4.8 m × 3.8 m

two triangles with base b = 4.8 m and height h = 2.6 m

two triangle with base b = 3.8 m and height h = 2.9 m.

The formula of an area of a rectangle l × w:

A = lw

Substitute:

A_1 = (4.8)(3.8) = 18.24\ m^2

The formula of an area of a triangle:

A=\dfrac{bh}{2}

Substitute:

A_2=\dfrac{(4.8)(2.6)}{2}=6.24\ m^2\\\\A_3=\dfrac{(3.8)(2.9)}{2}=5.51\ m^2

The Surface Area:

S.A.=A_1+2A_2+2A_3\\\\S.A.=18.24+2(6.24)+2(5.51)=41.74\ m^2

3 0
3 years ago
2. If GFE~GJH, find the value of FG.<br> ​
Alex73 [517]

Answer:

  • 77 units

Step-by-step explanation:

Given two similar triangles.

Corresponding parts of similar figures have same ratio.

<u>Use ratios to find the value of x:</u>

  • (4x - 5)/(x + 7) = 35/12.5
  • (4x - 5)/(x + 7) = 14/5
  • 5(4x - 5) = 14(x + 7)
  • 20x - 25 = 14x + 98
  • 20x - 14x = 98 + 25
  • 6x = 123
  • x = 123/6
  • x = 20.5

<u>Find the value of FG:</u>

  • FG = 4*20.5 - 5 = 77

5 0
3 years ago
28. Briana Miller deposited a check for $543.00 and a check for $231.12. She received
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Is there any choices?
4 0
2 years ago
SOMEONE PLEASE HELP I NEED THIS IN LIKE 10 MINUTES THANKS
tino4ka555 [31]

Answer:

what grade

Step-by-step explanation:

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3 0
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