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3 years ago

Help me on the last 2 please

Mathematics

2 answers:

Debora [2.8K]3 years ago

8 0

Answer:

Step-by-step explanation:

1. 64

2. yes because both angles are exactly the same

Sidana [21]3 years ago

8 0

The answer is no because if two angles are next to each other, they must add up to 180 degrees. However, it is not given that either angle is 90 degrees, so you can’t assume they are equivalent :)

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3 years ago

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The sum of three numbers is 123

Elan Coil [88]

Answer:

Step-by-step explanation:

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3 years ago

What is the solution to the equation below?

daser333 [38]

√x+9=12
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3 years ago

Thirty students bought pennants for the football game. Plain pennants cost $4 each and fancy ones cost $8 each. If the total bil

sammy [17]

Answer:

number o students bought pennants = 18

number of student bought fancy ones=12

Step-by-step explanation:

Let x be the number o students bought pennants

and y be the number of student bought fancy ones

total 30 students

$x+y= 30$

$y=30-x$

Plain pennants cost $4 each and fancy ones cost $8 each.

$4x+8y=168$

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$4x+8(30-x)=168$

$4x+240-8x=168$

$240-4x=168$

Subtract 240 from both sides

$-4x=-72$

divide both sides by -4

x=18

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6 0

4 years ago

Two angles are supplementary. one angle is 60° more than twice the other. find the angles

Katarina [22]

Let the "other" angle be x. Then we can set up the equation: 2x + 60 + x = 180, because supplementary means that the angles add up to 180 degrees.
We get:
3x + 60 = 180
3x = 120
x = 40.
2(40) + 60 = 80 + 60 = 140.
So one angle is 140 degrees and the other angle is 40 degrees.
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Hope this helps!
==jding713==

3 0

3 years ago