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Makovka662 [10]
2 years ago
13

Pls help thanks i need this ty ty

Mathematics
1 answer:
Maurinko [17]2 years ago
4 0

Answer:

31

Step-by-step explanation:

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Solve the system by substitution.<br> -2x + 7y = 15<br> бу = 3
Salsk061 [2.6K]

Answer:

Step-by-step explanation:

-2x + 7(1/2) =15

-4x +7 =30

-4x =23

x=-23/4

6 0
2 years ago
Find the area of the shape shown below.
oee [108]

Answer:

=6 units squared

Step-by-step explanation:

area=1/2h(a+b)

        =1/2×2(4+2)

        =6

7 0
3 years ago
Please someone all 3 :)
san4es73 [151]

Answer:

1. Anne = 21 Bobby=35, 450, 70+40+30=140

Step-by-step explanation:

  1. 1 21÷3=7
  2. 7×5=35

  1. 7-2=250
  2. 5=250
  3. 1=50
  4. 2×50+7×50=100+350=450
  5. 450

  1. we can see that it's multiplied by 10, so 70+40+30=140
6 0
2 years ago
Adult tickets to a play cost $2.25 each and student tickets cost $1.25 each. Suppose there are twice as many student tickets sol
Ganezh [65]

9514 1404 393

Answer:

  • 300 adult tickets
  • 600 student tickets

Step-by-step explanation:

We can group tickets into a group that has 2 student tickets and 1 adult ticket for a price of 2($1.25) +2.25) = $4.75. The number of these groups sold is ...

  $1425/4.75 = 300

300 adult tickets and 600 student tickets were sold.

8 0
2 years ago
I need help with these questions
inysia [295]

Answer:

28. m<A=20°, m<B=70°

32. m<A=103°, m<B=77°

Step-by-step explanation:

complementary angle=a+b=90°

supplementary angle=a+b=180°

28. A+B=90°

      5x+17x+2=90°

      22x+2=90°

      22x=90-2

      22x=88

        22x/22=88/22

      x=88/22=<u>4</u>

m<A=5x=5*4=<u>20°</u>

m<B=17x+2=17*4+2=68+2=<u>70°</u>

         <u>Check</u>

A+B=90°

20+70=90°

<u>90°=90°</u>

32. A+B=180°

     x+11+x-15=180°

     2x-4=180°

     2x=180+4

     2x=184

     2x/2=184/2

     x=184/2

     x=<u>92</u>

m<A=x+11=92+11=<u>103°</u>

m<B=x-15=92-15=<u>77°</u>

     <u>Check</u>

A+B=180°

103+77=180°

<u>180°=180°</u>

6 0
3 years ago
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