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qaws [65]
2 years ago
10

Unknown Angle Problems (with algebra)

Mathematics
1 answer:
Natalija [7]2 years ago
4 0

the answer is on the picture with solving

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Someone please help! ATTACHMENT (just the circled one)
Elza [17]

4 (3x+9)-3(5y+7) =11

distribute

12x +36 -15y -21 =11

12x -15y +15 =11

subtract 15 from each side

12x -15y =-4

subtract 12x from each side

-15y= - 12x-4

divide by -15

y = -12/-15 x -4/-15

y = 4/5 x  + 4/15

slope = 4/5

y intercept = 4/15

6 0
3 years ago
Which equation could have been used to create this table? need answer fast
ludmilkaskok [199]

Answer:

y=6x

Step-by-step explanation:

Each value for y is can be divided by 6 for the value of x

7 0
3 years ago
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Lupita bought 7 pounds of pretzels at a local wholesaler for $16.80. Her friend Charles bought 5 pounds of pretzels at the super
Galina-37 [17]

Answer:

Charly has the better buy

Step-by-step explanation:

The unit cost is

=16.8/7

=$2.4

Her friend Charles bought 5 pounds of pretzels at the supermarket for $12.75

Unit cost

=12.75/5

=$2.55

Charly got the best deal because the unit cost per item is less than that of the friend

3 0
3 years ago
7x + 5y = -10 solve for y
katen-ka-za [31]
The y intercept is (0,-2)
5 0
3 years ago
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I need help finding the area of this shape can you please help
BabaBlast [244]

Answer: 139.27

Step-by-step explanation:

So let find the area of the black swuare the length is 10 and the widith is 10, using bxh the area is 100. Now let find the aea of the semi-circle. The area of a fill circle is pi radius squared so a semi circle area will be 1/2( pi radius squared). The radius is 5 so we can calculate 1/2 of 25 pi equal = 39.27. Now let add the areas: 100+39.27=139.27.

8 0
3 years ago
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